Planning a flight with Delta? Want to breeze through airport security like a travel pro? If you’re enrolled in TSA PreCheck or Global Entry, you’ve got a golden ticket — your Known Traveler Number. Let’s make sure it gets added to your Delta app so you can enjoy a smoother, faster journey.
TL;DR (Too Long, Didn’t Read)
If you’ve got TSA PreCheck, add your Known Traveler Number (KTN) to the Delta app to skip long security lines. Open the app, go to your profile, and enter your KTN under “Personal Info” or “Secure Flight Info”. Save and you’re done! Don’t forget to double-check that it’s showing up on your boarding pass before heading to the airport.
What’s a Known Traveler Number Anyway?
Your Known Traveler Number (KTN) is your key to the express lane at airport security. It’s issued to you when you sign up for TSA PreCheck, Global Entry, or similar trusted traveler programs.
When you add this number to your airline profile, you’re usually eligible for expedited screening — less hassle, shoes stay on, laptops stay in the bag, and everyone stays happy. Pretty sweet, right?
Why You Should Add It to the Delta App
If you fly Delta and haven’t added your KTN, you’re missing out. Here’s why it matters:
- Skip the long security lines
- Enjoy a faster screening process
- No more digging for your laptop or removing your shoes
- Get TSA PreCheck printed on your Delta boarding pass automatically
The Delta app lets you load everything in one place — so adding your KTN just makes sense.
Before You Start
Make sure you have:
- Your Known Traveler Number (a 9-digit number, usually begins with “98”)
- The latest version of the Delta app installed on your phone
- Your Delta SkyMiles login info
Got all that? Perfect. Let’s get to the good stuff.
Step-by-Step: How to Add Your KTN in the Delta App
1. Open the Delta App
Launch the Delta app on your phone. If you’re not logged in, do that first.
2. Tap on “More”
At the bottom right corner of the screen, there’s a little menu labeled More. Tap it. This opens up a bunch of options.
3. Go to “Profile”
On the next screen, select Profile. This is where your personal and travel information lives.
4. Select “Personal Information”
Tap Personal Information or sometimes it might be called Secure Flight Info.
5. Enter Your KTN
Look for the field that says Known Traveler Number. Type in your 9-digit number carefully. Double-check — one typo and your TSA PreCheck magic won’t work.
6. Save Your Changes
After you’ve entered your number, don’t forget to hit Save at the top or bottom of the screen. This will lock in your info for all future bookings.
And that’s it! Easy, right?
Pro Tip: Add It to Your Bookings Too
If you had already booked a flight before adding your KTN to your profile, your updated info might not automatically apply.
To be safe, do this:
- Go to the My Trips section in the app
- Select your upcoming flight
- Tap Edit Traveler Information or something similar
- Enter your KTN manually for that trip
- Save
This ensures the KTN is linked directly to your reservation — and PreCheck benefits apply for that flight.
How to Know It Worked
Your boarding pass will say “TSA PreCheck” on it. That’s your official confirmation that it worked. If it doesn’t show up, make sure:
- You entered the KTN correctly
- Your name in the Delta profile matches exactly with your TSA info (first, middle, last)
- You saved the changes
If all else fails, you can call Delta customer service and ask them to help you out.
Double Check at the Airport
Sometimes, tech glitches happen. It’s always a good idea to glance at your boarding pass before you pack away your phone. If you don’t see the PreCheck logo, visit a Delta kiosk or speak with an agent at check-in — they can usually fix it quickly.
Can You Add It for Someone Else?
Yes! If you’re booking for a family member or friend, you can add their KTN when entering their traveler info during booking. Just make sure their name is entered exactly as it appears on their TSA or Global Entry account. Even a missing middle name can mess things up.
What If You Don’t Have a KTN Yet?
Not enrolled in TSA PreCheck or Global Entry?
Here’s how to get started:
- Visit the official site for TSA PreCheck or Global Entry
- Apply online and schedule an in-person interview
- Once approved, you’ll get your Known Traveler Number
- Add it to your Delta app as shown above
It usually takes a couple of weeks, but the time you save at the airport is totally worth it.
Troubleshooting Tips
If you’re running into issues, here’s what to try:
- Double-check your number: Make sure you didn’t leave off a digit
- Make sure your names match: Names must align exactly between Delta and TSA records
- Update existing bookings: Adding your KTN to your profile won’t affect flights you’ve already booked — you have to update those manually
Final Thoughts
Air travel can feel stressful, but smart travelers know how to work the system. Adding your Known Traveler Number to your Delta app takes just a minute or two — and it saves you much more than that at the airport.
So go ahead, update that profile. Then enjoy the sweet, sweet speed of the TSA PreCheck lane. You earned it!
