Is a Known Traveler Number the Same as TSA PreCheck?

Is a known traveler number the same as tsa precheck? Not quite. TSA PreCheck is the program and the screening benefit; the Known Traveler Number (KTN) is the number that proves you are a member. For Global Entry, NEXUS and SENTRI members, the KTN is the CBP PASSID, so that number does get you PreCheck, but only after CBP approves you, and approval comes after the interview.

That timing is the catch for anyone with conditional approval. Until the interview is done, you have no PASSID, no KTN and no PreCheck lane. The interview backlog is what stands between you and the lane.

What the numbers look like

Per the TSA PreCheck FAQ:

• A PreCheck-only KTN is 9 characters, can mix letters and numbers, and usually starts with TT.
• A Global Entry, NEXUS or SENTRI PASSID is 9 digits, usually starts with 15, 98 or 99, and is printed on the back of the card.

Sources differ at the edges. Capital One's Known Traveler Number page lists a wider set of PASSID prefixes and says PreCheck KTNs can be 9 or 10 characters. If your number does not match the pattern above, check it against your approval notice or card before assuming it is wrong.

Is a known traveler number the same as TSA PreCheck for Global Entry members?

For members, the number does the same job. Global Entry includes TSA PreCheck, and eligible NEXUS and SENTRI members get it too. You do not need a separate PreCheck enrollment if you hold one of these.

There is no PreCheck card. Showing a Global Entry, NEXUS or SENTRI card at the checkpoint does not get you into the PreCheck lane. Two things have to happen:

1. Your KTN or PASSID is in the KTN field of the airline reservation.
2. The PreCheck indicator prints on your boarding pass.

Your KTN does not exist until the interview is done

You are assigned a KTN once you complete the interview and are approved (The Points Guy). Paying the $120 fee and getting conditional approval does not give you a PASSID. Until then, every flight goes through the regular line.

Fees as of October 2026:

• Global Entry: $120 for 5 years, up from $100 before October 1, 2024.
• NEXUS and SENTRI: $120 for adults. Minors are free with a parent who is a member or applying (Security Wait Times, citing CBP).
• Standalone TSA PreCheck: $78–$85 for 5 years, depending on the enrollment provider. TSA says "$85 or less," and recent fee changes put new enrollments near the top of that range (Security Wait Times). Older articles still say $78.

Worked example: counting the months without PreCheck

Worked example: Dana has conditional approval for Global Entry and needs an interview. She checks Global Entry appointment availability for the next bookable date at her center. For this example, assume that date is 5 months away. These numbers are an assumption for illustration, not live data for any center. Your center's date will differ.

• Five months is about 150 days of flying with no PreCheck.
• Dana's membership runs 5 years, or 60 months. The wait eats 5 of those months before the interview, and the PASSID arrives after approval.

She has three routes:

Route (b) math. The extra $78–$85 buys early PreCheck for about 5 months in this example. That works out to roughly $16–$17 per month of early access (for instance, $85 divided by 5 months is $17). The rest of that PreCheck membership overlaps with Global Entry, which already includes PreCheck. If you buy both, expect to keep two numbers straight on your bookings.

Global Entry vs PreCheck alone. Global Entry adds the customs benefit for about $35–$42 more than standalone PreCheck over 5 years. Run your own trip count in the cost per trip calculator.

Route (c). Enrollment on Arrival lets you finish the Global Entry interview when you return from an international trip, at participating airports. It only helps if you have a trip abroad coming up.

How to get your own number

1. Open Global Entry wait times and find your center. NEXUS and SENTRI have their own wait-time pages for their centers.
2. Check Global Entry appointment availability for each center's next bookable date.
3. Count the months from today to that date. Multiply by $16–$17 to see the price of route (b)'s bridge.

The availability page shows the next bookable date. It does not show whether a slot is open right now.

How fast standalone PreCheck is

PreCheck takes about 5 minutes online and about 10 minutes at an in-person appointment. Most people get a KTN in 3–5 days, though TSA says it can take up to 60 days (TSA PreCheck FAQ). If your Global Entry interview is under a week away, route (b) is not worth it. If it is months away and you fly often, the math above decides it.

When the PreCheck indicator does not print

• The name, date of birth and KTN on the reservation must exactly match your enrollment.
• Your membership must not be expired.
• The airline must participate in PreCheck.
• You can add the KTN to an existing booking and to your frequent-flyer profiles.

Membership and KTN last 5 years. You keep the same KTN when you renew or switch PreCheck enrollment providers. TSA recommends renewing at least 60 days before expiry. A flight booked before your KTN expires but flown after it expires will not get PreCheck.

Kids and military

• Children 12 and under can use the lane with an enrolled parent.
• Ages 13–17 need the indicator on their own boarding pass and must be on the same reservation.
• Anyone 18 or older needs their own KTN.
• Military members can use their DoD ID number as the KTN. Showing a CAC does not work.

For the other half of the picture, Is Global Entry the same as NEXUS? covers how the programs differ.

Getting the PASSID sooner

The only way to move your KTN date up is an earlier interview. GlobalEntryTexts texts you when a Global Entry, NEXUS or SENTRI interview appointment opens at the enrollment centers you choose. It costs $25, paid once, for 30 days of monitoring, and it is not a subscription. You can watch up to 3 centers for that price. You book the slot yourself on ttp.dhs.gov. Nobody can promise you an appointment.