How to Check Your TSA PreCheck Status with Delta

Where to check your TSA PreCheck status

You can check whether you have an active TSA PreCheck membership in three places: the TSA's official website, your Delta account, or by calling TSA directly. The fastest method is the TSA website, which shows your status in seconds. Delta's website and app will also display your TSA PreCheck number if you've linked it to your frequent flyer account, though this only works if you've already added it during booking or profile setup.

Start by visiting the TSA PreCheck status checker at tsa.gov/precheck. You'll need your driver's license number, state of issue, and date of birth. The system will tell you when ready whether your membership is active, when it expires, and your TSA PreCheck number. If you don't remember your number, write it down now—you'll need it for every flight.

Key Takeaways

The TSA PreCheck status checker at tsa.gov/precheck is the fastest way to confirm your membership and find your TSA PreCheck number using your driver's license information.
Your TSA PreCheck number must be entered in the "Known Traveler Number" field when you book a Delta flight for the benefits to appear on your boarding pass.
Delta will display a TSA PreCheck indicator on your boarding pass only if your membership is active and you've added your number to that specific booking.
TSA PreCheck memberships last five years, and you can renew online starting nine months before your expiration date.

Adding your TSA PreCheck number to Delta bookings

Having an active TSA PreCheck membership means nothing on a Delta flight unless you add your number to your reservation. When you book a flight on Delta's website or app, look for a field labeled "Known Traveler Number" or "KTN." This is where you enter your nine-digit TSA PreCheck number. If you're booking through a travel agent or phone, tell them your TSA PreCheck number and ask them to add it to your record.

If you've already booked a flight without adding your number, you can edit your reservation on Delta.com or through the Delta app. Go to "Manage My Booking," find the flight, and look for passenger details. Add your TSA PreCheck number there. You can do this up until 24 hours before departure. If you miss that window, you can still go through the TSA PreCheck line at the airport—just tell the agent your number—but it won't print on your boarding pass.

What to look for on your Delta boarding pass

Once your TSA PreCheck number is linked to your Delta booking and your membership is active, your boarding pass will display "TSA PreCheck" or a TSA PreCheck indicator. This tells you that you're cleared to use the expedited security line at the airport. On a paper boarding pass, it appears near your name or confirmation number. On a mobile boarding pass in the Delta app, it shows as a label or icon on the pass itself.

If your boarding pass does not show TSA PreCheck even though you added your number, double-check three things: your membership is still active (check tsa.gov/precheck again), you entered your nine-digit number correctly (not your confirmation number or frequent flyer number), and you added it to the right booking. If all three are correct and it still doesn't appear, contact Delta customer service before your flight—they can verify the number on file and reissue your boarding pass.

Renewing your TSA PreCheck membership

TSA PreCheck memberships expire after five years. You can renew online starting nine months before your expiration date. Visit tsa.gov/precheck and select the renewal option. You'll pay the renewal fee (currently $78 to $85 depending on your state) and answer a brief set of questions. You do not need to visit an enrollment center for renewal unless TSA asks you to.

If your membership has already expired, you can still renew online, but you will not be able to use TSA PreCheck benefits until the renewal is processed and approved. Processing usually takes a few days to a week. If you have a flight coming up and your membership has lapsed, you may want to contact TSA directly at 1-855-347-8371 to ask about expedited processing, though there is no may provide they can rush it.

What happens if your membership is inactive or expired

If your TSA PreCheck membership has expired or is inactive, you will not be able to use the TSA PreCheck security line, even if you add your number to your Delta booking. The TSA's system will not recognize your number as valid. You'll go through standard security screening instead, which takes longer during busy travel times.

If you're traveling soon and discover your membership has expired, you have two options: renew it online at tsa.gov/precheck (processing takes several days to a week) or go through standard security at the airport. Some airports have shorter standard lines during off-peak hours, so arriving early can help. Do not try to use an expired TSA PreCheck number at the airport—the TSA agent will see it's inactive and you'll still go through standard screening.

Linking TSA PreCheck to your Delta SkyMiles account

You can store your TSA PreCheck number in your Delta SkyMiles frequent flyer profile so it auto-fills on every booking. Log into your SkyMiles account on Delta.com, go to "My Profile," and look for the section labeled "Travel Information" or "Known Traveler Number." Enter your nine-digit TSA PreCheck number there. From then on, when you book a flight, your number will appear automatically in the Known Traveler Number field.

This saves time on every booking, but it does not override the need to check your boarding pass before each flight. Always verify that TSA PreCheck appears on your pass, especially if you've renewed your membership recently or changed your number. Storing it in your profile is a convenience, not a may provide that it will appear on every boarding pass.

Common reasons TSA PreCheck doesn't show on your Delta boarding pass

The most common reason TSA PreCheck doesn't appear on your boarding pass is that you didn't enter your number during booking, or you entered it incorrectly. Your TSA PreCheck number is nine digits long and starts with numbers or letters. Your Delta confirmation code is six characters and is not the same thing. If you're unsure which number is which, check tsa.gov/precheck—it will display your correct nine-digit number.

Another reason is that your membership has expired. Check the expiration date on tsa.gov/precheck. If it has passed, you'll need to renew before TSA PreCheck benefits will work. A third reason is that you booked your flight through a third-party site like Kayak or Expedia and didn't add your number there. When you book through a non-Delta site, you must add your TSA PreCheck number during that booking process, not afterward on Delta.com. If you missed it, contact the third-party site to see if they can add it, or rebook directly with Delta.

Frequently Asked Questions

How do I find my TSA PreCheck number if I don't remember it?

Go to tsa.gov/precheck and use the status checker. Enter your driver's license number, state, and date of birth. The system will display your nine-digit TSA PreCheck number along with your membership status and expiration date. You can also find it on any boarding pass from a previous flight where TSA PreCheck was listed, or on your TSA PreCheck card if you have a physical one.

Can I use someone else's TSA PreCheck number on my Delta flight?

No. TSA PreCheck numbers are tied to a specific person's identity and background check. Using someone else's number is not permitted and will not work—the TSA's system will flag it as invalid. Each traveler must have their own active TSA PreCheck membership to use the expedited security line.

What if I renewed my TSA PreCheck but Delta still won't show it on my boarding pass?

After you renew, it can take a few days for your new membership to appear in the TSA's system. Wait at least 24 hours after your renewal is approved, then check tsa.gov/precheck again to confirm your new expiration date. Once confirmed, try booking a new flight and adding your number. If it still doesn't work, contact Delta customer service with your TSA PreCheck number and they can investigate why it's not linking.

Do I need TSA PreCheck to fly Delta?

No. TSA PreCheck is optional. If you don't have it or don't add your number to your booking, you'll go through standard security screening. TSA PreCheck straightforward lets you use a faster security line and keep some items on during screening (shoes, light jackets, belts). It's not required to fly.

Can I check my TSA PreCheck status on the Delta app?

The Delta app will show your TSA PreCheck number if you've added it to your SkyMiles profile, but it won't tell you whether your membership is active or when it expires. For that information, you must use tsa.gov/precheck. The TSA website is the only place that confirms your membership status and expiration date.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.