Is TSA PreCheck The Same As Known Traveler Number? Your Guide

Navigating airport security can be a breeze with the right tools. Understanding the difference between TSA PreCheck and a Known Traveler Number (KTN) is key to smoother travels, especially when exploring amazing destinations like Vietnam. SIXT.VN is here to clarify these concepts and offer seamless travel solutions. Let’s unravel this and show you how to make your journey hassle-free with our services, including airport transfers, hotel bookings, and tours.

1. What Exactly Is A Known Traveler Number (KTN)?

A Known Traveler Number (KTN) is a unique identifier assigned to individuals who have been approved for trusted traveler programs, which allows expedited security screening. It’s essentially your pass to a quicker, less intrusive airport security experience.

• Definition: A KTN verifies your eligibility for programs like TSA PreCheck, Global Entry, SENTRI, and NEXUS.
• Purpose: It allows you to bypass standard security lines and undergo a more streamlined screening process.
• Location: This number is typically found on your membership card or approval documents from the relevant trusted traveler program.
• Usage: Enter your KTN when booking flights to ensure the TSA PreCheck indicator appears on your boarding pass.

A KTN is your golden ticket to shorter lines and less hassle at the airport, making your travel experience smoother and more efficient. For travelers heading to Vietnam, this can be especially beneficial, allowing you to spend less time in transit and more time exploring the rich culture and stunning landscapes.

2. What is TSA PreCheck?

TSA PreCheck is an expedited security screening program that allows pre-approved travelers to enjoy a faster, more efficient airport security experience. It’s designed to save you time and reduce stress at the airport.

• Definition: A program by the Transportation Security Administration (TSA) that allows low-risk travelers to experience expedited security screening at U.S. airports.
• Benefits: Passengers enrolled in TSA PreCheck can keep their shoes, belts, and light jackets on, and they can also leave laptops and compliant liquids in their bags during screening.
• Eligibility: U.S. citizens, U.S. nationals, and lawful permanent residents are eligible to apply.
• How to Enroll: Apply online, schedule an appointment, and undergo a background check and fingerprinting.
• Cost: The application fee is $85 for a five-year membership.

TSA PreCheck can make a significant difference in your travel experience, especially when you’re eager to start your adventure in Vietnam. With SIXT.VN, you can further enhance your journey with our convenient airport transfer, hotel booking, and tour services.

3. Is TSA PreCheck The Same As Known Traveler Number?

Yes and no. TSA PreCheck is a program, and the Known Traveler Number (KTN) is the identifier you use to access the benefits of that program (or other trusted traveler programs). Understanding this distinction is key to ensuring a smooth airport experience.

• TSA PreCheck: This is the actual program that provides expedited security screening at U.S. airports.
• Known Traveler Number (KTN): This is the unique identification number assigned to you once you are approved for TSA PreCheck or other trusted traveler programs like Global Entry, SENTRI, or NEXUS. You use this number when booking airline tickets to ensure you receive TSA PreCheck benefits.
• Relationship: Think of TSA PreCheck as the club and the KTN as your membership card. The KTN proves you are a member of the club and eligible for its benefits.
• Application: When booking flights, you enter your KTN in the designated field (often labeled “Known Traveler Number” or “TSA PreCheck Number”) to have the TSA PreCheck indicator printed on your boarding pass.

So, while they are related, they are not the same thing. TSA PreCheck is the program, and the KTN is your key to accessing its benefits. With SIXT.VN, you can start your Vietnam adventure on the right foot, knowing you have all the information needed for stress-free travel, along with our reliable airport transfer and hotel booking services.

4. What Are The Benefits of Having Both TSA PreCheck And A Known Traveler Number?

Having both TSA PreCheck and a Known Traveler Number provides numerous benefits, making your airport experience faster, smoother, and less stressful. These advantages are especially valuable when traveling to international destinations like Vietnam.

• Expedited Security Screening: The most significant benefit is access to faster security lines. TSA PreCheck lanes typically have shorter wait times, allowing you to breeze through security.
• No Need to Remove Shoes, Belts, or Light Jackets: TSA PreCheck passengers can keep their shoes, belts, and light jackets on, saving time and hassle.
• Laptop and Liquids Stay in Your Bag: You don’t need to remove your laptop or compliant liquids from your carry-on, further streamlining the screening process.
• Predictability: Knowing you have access to expedited screening can reduce travel anxiety and make your journey more predictable.
• Time Savings: On average, TSA PreCheck passengers spend significantly less time in security lines compared to standard screening. This can be particularly valuable when you have connecting flights or are traveling with a tight schedule.
• Family Benefits: Children aged 12 and under can join you in the TSA PreCheck lanes when traveling on the same reservation.
• Global Entry Compatibility: If your KTN is associated with Global Entry, you also enjoy expedited customs processing when re-entering the United States.
• Peace of Mind: Knowing you’re a trusted traveler can provide peace of mind, as you’ve undergone a background check and are considered a low-risk passenger.

According to the TSA, in November 2023, 99% of TSA PreCheck passengers waited less than 10 minutes in security lines. This highlights the significant time savings and convenience offered by the program.

5. How Do I Obtain a Known Traveler Number?

Obtaining a Known Traveler Number (KTN) is a straightforward process that involves applying for a trusted traveler program like TSA PreCheck or Global Entry. Here’s a step-by-step guide:

1. Choose a Trusted Traveler Program

• TSA PreCheck: Ideal for frequent domestic travelers. It provides expedited security screening at U.S. airports.
• Global Entry: Best for international travelers. It includes TSA PreCheck benefits plus expedited customs processing when entering the U.S.
• SENTRI: Designed for frequent travelers crossing the U.S.-Mexico border.
• NEXUS: For travelers between the U.S. and Canada.

2. Online Application

• Visit the official website for the program you’ve chosen (e.g., the TSA PreCheck website or the Global Entry website).
• Fill out the online application form with accurate and complete information. You’ll need to provide personal details, travel history, and answer security-related questions.

3. Pay the Application Fee

• TSA PreCheck: $85 for a five-year membership.
• Global Entry: $100 for a five-year membership.
• Pay the non-refundable application fee online using a credit card or other accepted payment method.

4. Schedule an Appointment

• After submitting your application and paying the fee, you’ll need to schedule an in-person appointment.
• For TSA PreCheck, you can choose from over 380 enrollment centers nationwide.
• For Global Entry, appointments are typically conducted at U.S. Customs and Border Protection (CBP) enrollment centers, often located at airports.

5. Attend the In-Person Appointment

• Arrive on time for your appointment with the required documents. Typically, you’ll need a valid photo ID (e.g., driver’s license or passport) and proof of citizenship (e.g., birth certificate or passport).
• During the appointment, you’ll be interviewed, fingerprinted, and undergo a background check.

6. Await Approval

• After the appointment, your application will be reviewed. This process can take a few weeks to a few months.
• You can check your application status online through the trusted traveler program website.

7. Receive Your Known Traveler Number (KTN)

• Once approved, you’ll receive your KTN. This number is typically provided on your membership card or approval documents.
• Your KTN is valid for the duration of your membership (e.g., five years for TSA PreCheck and Global Entry).

8. Use Your KTN When Booking Flights

• When booking airline tickets, enter your KTN in the designated field (often labeled “Known Traveler Number” or “TSA PreCheck Number”).
• Ensure your name and date of birth on the airline reservation match the information you provided during enrollment.
• If everything matches, the TSA PreCheck indicator should appear on your boarding pass.

Helpful Tips:

• Apply Early: Start the application process well in advance of your travel dates to allow sufficient time for processing.
• Accurate Information: Provide accurate and complete information on your application to avoid delays or denial.
• Renew On Time: Renew your membership before it expires to maintain your KTN and avoid interruptions in your expedited screening benefits.

Obtaining a KTN through TSA PreCheck or Global Entry can significantly enhance your travel experience, providing faster and more convenient security screening. For travelers planning a trip to Vietnam, this can save valuable time at the airport, allowing you to fully enjoy your adventure with services from SIXT.VN, such as airport transfers, hotel bookings, and guided tours.

6. Where Do I Find My Known Traveler Number?

Locating your Known Traveler Number (KTN) is essential for ensuring you receive TSA PreCheck benefits when booking flights. Here’s where you can typically find your KTN:

• TSA PreCheck Membership Card: If you enrolled directly in TSA PreCheck, your KTN is printed on your membership card. The card displays your name, KTN, and the expiration date of your membership.
• Global Entry, SENTRI, or NEXUS Card: If you are a member of Global Entry, SENTRI, or NEXUS, your KTN is printed on the back of your membership card. These cards provide expedited customs processing when entering the U.S., as well as TSA PreCheck benefits.
• Approval Letter or Email: When you are approved for TSA PreCheck, Global Entry, SENTRI, or NEXUS, you typically receive an approval letter or email containing your KTN. Check your email inbox (including spam or junk folders) for this communication.
• Trusted Traveler Program Website: You can log in to your account on the official website for the trusted traveler program you enrolled in (e.g., the Trusted Traveler Program website for Global Entry) to find your KTN.
• U.S. Customs and Border Protection (CBP) Website: If you are a Global Entry, SENTRI, or NEXUS member, you can find your KTN on the CBP website by logging in to your Trusted Traveler Program account.

Steps to Find Your KTN Online (Example for Global Entry):

1. Go to the Trusted Traveler Program website.
2. Click on “Check Application Status.”
3. Log in to your account using your username and password.
4. Once logged in, you should see your membership details, including your KTN.

What if You Can’t Find Your KTN?

• Contact the Trusted Traveler Program: If you’ve checked all the above sources and still can’t find your KTN, contact the customer service for the trusted traveler program you enrolled in. They can help you retrieve your KTN.
• TSA Contact Center: You can also contact the TSA Contact Center at (866) 289-9673 for assistance.

Once you’ve located your KTN, make sure to enter it correctly when booking flights to enjoy the benefits of TSA PreCheck. Having this number handy ensures a smoother and faster airport security experience, leaving you more time to look forward to your trip to Vietnam with SIXT.VN’s airport transfer, hotel booking, and tour services.

7. What If I Forget To Add My KTN When Booking A Flight?

Forgetting to add your Known Traveler Number (KTN) when booking a flight doesn’t mean you’ll miss out on TSA PreCheck benefits. Here’s what you can do to add it after booking:

• Manage Your Booking Online:
  • Visit the airline’s website and find the “Manage Booking” or “My Trips” section.
  • Enter your reservation confirmation number and last name to access your booking details.
  • Look for a section to add or edit your Known Traveler Number (KTN) or TSA PreCheck information.
  • Save the changes to your booking.
• Contact the Airline’s Customer Service:
  • Call the airline’s customer service and provide them with your reservation details and KTN.
  • Ask the representative to add your KTN to your booking.
  • Confirm that the changes have been made and that your KTN is now associated with your reservation.
• Add Your KTN At Airport Check-In:
  • If you are unable to add your KTN online or via customer service, you can try adding it during airport check-in.
  • Visit the airline’s check-in counter or use a self-service kiosk.
  • Enter your KTN when prompted.
  • The system will attempt to verify your KTN and add the TSA PreCheck indicator to your boarding pass.
• Visit the Airline’s Ticket Counter:
  • If you are still unable to add your KTN, visit the airline’s ticket counter at the airport.
  • A customer service agent may be able to manually add your KTN to your reservation and reprint your boarding pass with the TSA PreCheck indicator.

Even if you forget to add your KTN before your flight, there are several ways to ensure you receive your TSA PreCheck benefits. Having your KTN readily available and knowing how to add it to your booking can save time and reduce stress at the airport. This is particularly useful when you’re eager to start your vacation in Vietnam, made even more convenient with SIXT.VN’s airport transfer, hotel booking, and tour services.

8. What If My Boarding Pass Doesn’t Show TSA PreCheck?

If your boarding pass doesn’t show the TSA PreCheck indicator despite having a Known Traveler Number (KTN), there are several steps you can take to troubleshoot the issue:

• Verify Your KTN is Correct: Double-check that the KTN you entered when booking your flight is accurate and matches the one on your TSA PreCheck, Global Entry, SENTRI, or NEXUS card. Even a small typo can prevent the TSA PreCheck indicator from appearing.
• Ensure Your Name and Date of Birth Match: Make sure that the name and date of birth on your airline reservation exactly match the information you provided when enrolling in TSA PreCheck or another trusted traveler program. Discrepancies can cause the TSA PreCheck indicator to be omitted.
• Confirm Your Airline Participates in TSA PreCheck: Not all airlines participate in the TSA PreCheck program. Check the TSA website for a list of participating airlines. If your airline is not on the list, you will not receive TSA PreCheck benefits, regardless of your KTN.
• Check Your TSA PreCheck Membership Status: Ensure that your TSA PreCheck membership is still active and has not expired. You can check your membership status on the TSA website or the website of the trusted traveler program you enrolled in (e.g., Global Entry).
• Contact the Airline: If your KTN is correct, your name and date of birth match, your airline participates in TSA PreCheck, and your membership is active, contact the airline’s customer service. They may be able to resolve the issue and reprint your boarding pass with the TSA PreCheck indicator.
• Visit the Airline’s Ticket Counter: If contacting the airline doesn’t resolve the issue, visit the airline’s ticket counter at the airport. A customer service agent may be able to manually add the TSA PreCheck indicator to your boarding pass.
• TSA Recheck: Sometimes, even with TSA PreCheck, you may be subjected to standard screening due to random security measures. This is a normal part of the TSA’s security protocols.

If your boarding pass doesn’t show TSA PreCheck, systematically checking these factors can help you identify and resolve the issue. Being proactive ensures you can enjoy the expedited security screening benefits to which you’re entitled. This is especially helpful when you’re excited to begin your adventure in Vietnam, and you can enhance your travel experience with SIXT.VN’s convenient airport transfer, hotel booking, and tour services.

9. Can I Still Get TSA PreCheck If I Don’t Have A KTN?

No, you cannot get TSA PreCheck benefits without a Known Traveler Number (KTN). The KTN is the unique identifier that links you to your TSA PreCheck membership, allowing you to access expedited security screening at U.S. airports.

• KTN is Essential: The KTN verifies that you have been approved for TSA PreCheck or another trusted traveler program like Global Entry, SENTRI, or NEXUS. Without it, you cannot access the TSA PreCheck lanes or receive expedited screening benefits.
• No Exceptions: Even if you believe you should be eligible for TSA PreCheck, you will not receive the benefits without a valid KTN associated with your airline reservation.
• Apply for TSA PreCheck: If you want to enjoy the benefits of TSA PreCheck, you must apply for the program and receive a KTN. The application process involves an online application, a background check, and an in-person appointment.
• Alternative Programs: If you are not eligible for TSA PreCheck, consider applying for Global Entry, SENTRI, or NEXUS. These programs also provide a KTN that can be used to access TSA PreCheck benefits, as well as expedited customs processing when entering the U.S.

Having a KTN is the only way to access TSA PreCheck benefits. If you travel frequently and want to save time and hassle at the airport, consider applying for TSA PreCheck or another trusted traveler program to obtain a KTN. This is especially useful when planning a trip to Vietnam, and you can enhance your travel experience with SIXT.VN’s convenient airport transfer, hotel booking, and tour services.

10. What Happens If I Am Denied TSA PreCheck?

If you are denied TSA PreCheck, it means that your application was not approved, and you will not receive a Known Traveler Number (KTN) or access to expedited security screening. Understanding the reasons for denial and your options is crucial.

• Reasons for Denial:
  • Criminal History: A criminal record, particularly certain offenses, can lead to denial.
  • Incomplete or False Information: Providing incomplete or false information on your application can result in denial.
  • Violation of Transportation Security Regulations: Violating transportation security regulations may disqualify you from TSA PreCheck.
  • Ineligibility: Certain individuals, such as those who do not meet the citizenship or residency requirements, may be ineligible.
• Notification of Denial: If your application is denied, you will receive a notification explaining the reason for the denial.
• Appeal Process: You may have the option to appeal the denial. The notification will provide instructions on how to submit an appeal and any required documentation.
• Reapply: In some cases, you may be able to reapply for TSA PreCheck after a certain period, especially if the reason for denial has been resolved (e.g., expungement of a criminal record).
• Alternative Options: If you are denied TSA PreCheck, consider enrolling in other trusted traveler programs like Global Entry, SENTRI, or NEXUS. While these programs have their own eligibility requirements, they may be an alternative if you do not qualify for TSA PreCheck.
• Standard Screening: If you are denied TSA PreCheck and do not enroll in another trusted traveler program, you will need to undergo standard security screening at the airport.

If your TSA PreCheck application is denied, understanding the reasons and exploring your options can help you navigate the situation. While denial can be frustrating, knowing your next steps can make the process smoother. And when you finally make it to Vietnam, SIXT.VN is ready to enhance your experience with airport transfers, hotel bookings, and guided tours.

11. How Long Is TSA PreCheck Valid?

TSA PreCheck membership is valid for five years. This means that once you are approved and receive your Known Traveler Number (KTN), you can enjoy expedited security screening for a period of five years from the date of approval.

• Five-Year Validity: Your TSA PreCheck membership, and therefore your KTN, is valid for five years. The expiration date is typically printed on your TSA PreCheck membership card or can be found by logging into your online account.
• Renewal Process: To continue enjoying TSA PreCheck benefits after your membership expires, you must renew your membership. The renewal process is similar to the initial application process and involves an online application and payment of a renewal fee.
• Renewal Fee: The renewal fee for TSA PreCheck is currently $70, which is less than the initial application fee.
• Renewal Timeline: You can begin the renewal process up to six months before your membership expires. It’s recommended to renew early to avoid any lapse in benefits.
• Automatic Renewal (if applicable): In some cases, you may be eligible for automatic renewal, which simplifies the process. Check the terms and conditions of your membership to see if this option is available.
• Check Expiration Date: Regularly check your TSA PreCheck membership expiration date to ensure you renew on time. You can find this information on your membership card or online account.

Keeping track of your TSA PreCheck membership validity and renewing on time ensures you continue to enjoy expedited security screening at U.S. airports. This is particularly beneficial when you’re planning trips, such as exploring Vietnam with SIXT.VN, where you can rely on our services for airport transfers, hotel bookings, and guided tours.

12. Can Children Get TSA PreCheck?

Yes, children can get TSA PreCheck benefits, but the rules vary depending on their age:

• Children Aged 12 and Under: Children aged 12 and under can use the TSA PreCheck lane when traveling with an enrolled parent or guardian on the same reservation. This means that if you have TSA PreCheck and your child is 12 or under, they can accompany you through the expedited security screening without needing their own TSA PreCheck membership.
• Children Aged 13 and Older: Children aged 13 and older need their own TSA PreCheck membership to use the TSA PreCheck lane. They must apply for the program and receive their own Known Traveler Number (KTN).
• Family Enrollment: If you want your children aged 13 and older to have TSA PreCheck, you will need to enroll them in the program individually. The application process is the same as for adults and involves an online application, a background check, and an in-person appointment.
• Benefits for Families: TSA PreCheck can be particularly beneficial for families traveling with young children, as it allows you to keep shoes, belts, and light jackets on, and you don’t need to remove laptops or liquids from your bags. This can make the security screening process much easier and less stressful.
• Consider Global Entry: If you travel internationally with your family, consider enrolling in Global Entry. Global Entry includes TSA PreCheck benefits and provides expedited customs processing when re-entering the U.S.

TSA PreCheck can make traveling with children much smoother and more efficient. Knowing the rules for children of different ages ensures you can take full advantage of the program’s benefits. When you’re planning your family trip to Vietnam, remember that SIXT.VN offers a range of services to make your journey even more enjoyable, including airport transfers, comfortable hotel bookings, and family-friendly tours.

13. Does Global Entry Include TSA PreCheck?

Yes, Global Entry includes TSA PreCheck benefits. When you are approved for Global Entry, you automatically receive a Known Traveler Number (KTN) that can be used to access TSA PreCheck lanes at U.S. airports.

• Dual Benefits: Global Entry is a U.S. Customs and Border Protection (CBP) program that provides expedited customs processing for pre-approved, low-risk travelers entering the United States. One of the key benefits of Global Entry is that it also includes TSA PreCheck.
• Expedited Screening: As a Global Entry member, you can use your KTN when booking flights to receive TSA PreCheck benefits, such as access to expedited security lanes, and you don’t need to remove your shoes, belts, or light jackets.
• Customs Benefits: In addition to TSA PreCheck, Global Entry members can use automated kiosks at select airports to expedite their customs processing when arriving in the U.S. This can save a significant amount of time compared to standard customs lines.
• Who Should Apply: Global Entry is a good option for frequent international travelers who want to enjoy both expedited security screening and faster customs processing.
• Application Process: The application process for Global Entry is similar to TSA PreCheck and involves an online application, a background check, and an in-person interview.
• Cost: The application fee for Global Entry is $100, which is slightly higher than the fee for TSA PreCheck. However, the additional benefits of expedited customs processing can make it worth the investment for frequent international travelers.

If you travel internationally and want to streamline your airport experience, Global Entry is an excellent choice. It provides both TSA PreCheck benefits and expedited customs processing, making your journey faster and more convenient. And when you’re planning your trip to Vietnam, SIXT.VN is here to help with services like airport transfers, hotel bookings, and guided tours.

14. How Do I Renew My TSA PreCheck Membership?

Renewing your TSA PreCheck membership is a straightforward process that ensures you can continue to enjoy expedited security screening at U.S. airports. Here’s a step-by-step guide:

• Check Your Expiration Date:
  • The first step is to check your TSA PreCheck membership expiration date. This date is printed on your TSA PreCheck membership card or can be found by logging into your online account on the Universal Enrollment Services website.
• Renew Online:
  • Visit the official TSA PreCheck website or the Universal Enrollment Services website.
  • Log in to your account using your username and password. If you don’t have an account, you can create one using your Known Traveler Number (KTN) and other identifying information.
• Start the Renewal Application:
  • Once logged in, navigate to the renewal section and start your renewal application.
  • Review your personal information and make any necessary updates.
• Pay the Renewal Fee:
  • The renewal fee for TSA PreCheck is currently $70, which is less than the initial application fee.
  • Pay the renewal fee online using a credit card or other accepted payment method.
• Submit Your Application:
  • After completing the renewal application and paying the fee, submit your application online.
• Await Approval:
  • Your renewal application will be reviewed. This process can take a few weeks to a few months.
  • You can check your application status online through the TSA PreCheck website or the Universal Enrollment Services website.
• No In-Person Appointment Required (in most cases):
  • In many cases, you will not need to attend an in-person appointment to renew your TSA PreCheck membership.
  • However, in some situations, you may be required to attend an appointment for fingerprinting or verification purposes.
• Receive Confirmation:
  • Once your renewal is approved, you will receive a confirmation email or letter.
  • Your renewed TSA PreCheck membership will be valid for another five years.

Renewing your TSA PreCheck membership on time ensures that you can continue to enjoy expedited security screening at U.S. airports without interruption. Staying proactive about your membership is especially beneficial when planning your next adventure, such as exploring Vietnam with SIXT.VN, where we offer services like airport transfers, hotel bookings, and guided tours.

15. Can I Use My KTN For Airline Loyalty Programs?

No, your Known Traveler Number (KTN) is not the same as your airline loyalty program number, and it cannot be used interchangeably. Each serves a different purpose:

• Known Traveler Number (KTN):
  • Purpose: The KTN is used to verify your membership in trusted traveler programs like TSA PreCheck, Global Entry, SENTRI, or NEXUS. It allows you to access expedited security screening and customs processing.
  • Usage: You enter your KTN when booking airline tickets to ensure that the TSA PreCheck indicator appears on your boarding pass.
• Airline Loyalty Program Number:
  • Purpose: This number is associated with your membership in an airline’s loyalty program (e.g., frequent flyer program). It allows you to earn and redeem miles or points, access exclusive benefits, and track your travel history with the airline.
  • Usage: You enter your airline loyalty program number when booking flights to earn miles or points for your travel.
• Separate Systems: The TSA PreCheck and airline loyalty programs are separate systems, and the numbers are not interchangeable.
• Entering Both Numbers: When booking flights, you can and should enter both your KTN and your airline loyalty program number to receive both TSA PreCheck benefits and earn miles or points for your travel.
• Benefits of Both: Using both numbers ensures a smoother airport experience with expedited security screening and rewards for your loyalty to the airline.

Understanding the difference between your KTN and your airline loyalty program number is essential for maximizing your travel benefits. Remember to enter both numbers when booking flights to enjoy a more seamless and rewarding travel experience. And when you’re planning your trip to Vietnam, SIXT.VN can help you with airport transfers, hotel bookings, and guided tours.

16. What Should I Do If My KTN Is Stolen?

If you suspect that your Known Traveler Number (KTN) has been stolen or compromised, taking immediate action is crucial to protect your identity and prevent potential misuse. Here’s what you should do:

• Change Your Online Account Password:
  • If you have an online account associated with your TSA PreCheck or Global Entry membership (e.g., on the Universal Enrollment Services website), change your password immediately. Choose a strong, unique password that is difficult to guess.
• Report the Theft to TSA:
  • Contact the Transportation Security Administration (TSA) to report the theft of your KTN. You can call the TSA Contact Center at (866) 289-9673 or use the online contact form on the TSA website.
  • Provide as much information as possible about the theft, including when and how you believe your KTN was compromised.
• Report the Theft to CBP (if applicable):
  • If your KTN is associated with Global Entry, SENTRI, or NEXUS, also report the theft to U.S. Customs and Border Protection (CBP).
  • You can contact CBP through their website or by calling the CBP INFO Center at (877) 227-5511.
• Monitor Your Credit Report:
  • Keep a close eye on your credit report for any signs of identity theft or fraudulent activity. You can obtain a free copy of your credit report from each of the three major credit bureaus (Equifax, Experian, and TransUnion) once a year.
• Place a Fraud Alert (if necessary):
  • If you suspect that your KTN theft could lead to identity theft, consider placing a fraud alert on your credit report. This will require creditors to verify your identity before opening new accounts in your name.
• Consider Applying for a New KTN:
  • In some cases, the TSA or CBP may recommend that you apply for a new KTN to ensure the security of your travel credentials. Follow their instructions for doing so.
• Be Vigilant:
  • Be extra vigilant about protecting your personal information and travel documents. Avoid sharing your KTN or other sensitive information with unauthorized individuals or on unsecured websites.

Taking these steps can help you mitigate the potential damage from a stolen KTN and protect your identity. When you’re ready to plan your next trip, SIXT.VN is here to assist with airport transfers, hotel bookings, and guided tours.

17. Can I Get A Refund If I Cancel My TSA PreCheck Application?

Whether you can get a refund if you cancel your TSA PreCheck application depends on the timing of your cancellation and the specific terms of the program.

• Non-Refundable Application Fee:
  • In general, the TSA PreCheck application fee is non-refundable. This means that if you cancel your application after submitting it and paying the fee, you may not be eligible for a refund.
• Cancellation Before Enrollment:
  • If you cancel your application before completing the enrollment process (e.g., before attending the in-person appointment), you may have a better chance of receiving a refund.
  • Contact the TSA or the enrollment provider to inquire about their refund policy in this situation.
• Extenuating Circumstances:
  • In certain extenuating circumstances (e.g., serious illness or death in the family), the TSA may consider granting a refund on a case-by-case basis.
  • You will need to provide documentation to support your claim.
• Review the Terms and Conditions:
  • Carefully review the terms and conditions of the TSA PreCheck program to understand the refund policy and any exceptions.
• Contact the TSA:
  • To inquire about a refund, contact the TSA Contact Center at (866) 289-9673 or use the online contact form on the TSA website.
  • Be prepared to provide your application details and explain the reason for your cancellation.

While it’s generally difficult to obtain a refund for a cancelled TSA PreCheck application, it’s worth contacting the TSA to inquire about your options, especially if you cancelled before completing the enrollment process or have extenuating circumstances. And when you’re ready to plan your next trip, SIXT.VN is here to assist with airport transfers, hotel bookings, and guided tours.

18. Does TSA PreCheck Work Internationally?

TSA PreCheck is primarily designed for expedited security screening at U.S. airports. While it doesn’t directly offer benefits at international airports, it can still be valuable for international travel.

• U.S. Airports Only: TSA PreCheck benefits, such as access to expedited security lanes and the ability to keep shoes, belts, and light jackets on, are only available at participating U.S. airports.
• Connecting Flights: If you have a connecting flight in the U.S. as part of an international itinerary, TSA PreCheck can help you save time and reduce stress during your connection.
• Global Entry for International Travel: For expedited security screening and customs processing when entering the U.S. from international destinations, consider enrolling in Global Entry. Global Entry includes TSA PreCheck benefits and provides faster customs clearance upon arrival in the U.S.
• Other Trusted Traveler Programs: Depending on your travel patterns, other trusted traveler programs like SENTRI (for U.S.-Mexico border crossings) and NEXUS (for U.S.-Canada border crossings) may be beneficial for international travel.
• International Security Procedures: When traveling internationally, be prepared to follow the security procedures at the airports in your destination country. These procedures may differ from those in the U.S.

While TSA PreCheck doesn’t directly provide benefits at international airports, it can still be valuable for international travel, especially when you have connecting flights in the U.S. For a more seamless international travel experience, consider enrolling in Global Entry. And when you’re planning your trip to Vietnam, SIXT.VN is here to assist with airport transfers, hotel bookings, and guided tours.