Where to Find Your Redress Number: TRIP Portal, Letter, or Airline

Your DHS Redress Control Number lives in three places: the DHS TRIP portal at trip.dhs.gov, the determination letter you received when your inquiry closed, and any airline loyalty profile where you saved it on a past booking. If none of those work, a short email to DHS TRIP will get the seven-digit number sent back to you.¹

Log Into the DHS TRIP Portal

The portal at trip.dhs.gov is the authoritative source. Sign-in now runs through Login.gov, so you’ll use the email and password tied to that account rather than a separate case number.²

Once you’re in, the number shows up in two spots. It sits under the “Redress Control Number” section of your profile. It also appears at the bottom of any closed case under “My Cases,” inside the stored DHS TRIP communications, where your final determination letter carries the same number.³

One catch worth knowing. The portal displays the number only after your case has been reviewed and closed. The system assigns it when you first submit the inquiry, but it isn’t usable for airline reservations until the review is finished.²

Check Your Determination Letter

When DHS TRIP closes your case, it sends a final determination letter. That letter may arrive by mail or as an electronic communication in the portal, and your Redress Control Number is printed on it.³

If your determination came years ago and the paper copy is gone, search your email for phrases like “DHS TRIP,” “Redress Control Number,” or “determination.” An older message is often enough to surface the number when you need it for a booking.

Look in Your Airline Loyalty Profile

If you’ve entered the number on a previous booking, it may still be saved in your airline account. Most carriers store it in the passenger details or travel document section of the frequent flyer profile, in a field labeled “Redress Number” or “Redress Control Number.”

Look in the correct field. The Redress Number field and the Known Traveler Number field are separate slots in airline reservation systems, and your loyalty profile mirrors that separation.⁴ A number saved in the wrong slot won’t help you find it, and it won’t work on a new reservation either.

Treat the airline profile as a convenient backup rather than an official record. Before you rely on the number for a new booking, verify it against the portal or your determination letter.

Email DHS TRIP to Recover the Number

If you can’t get into the portal and your letter is gone, email DHS TRIP at TRIP@tsa.dhs.gov. Include your full name, date of birth, gender, and city and state of residence. Staff will email your Redress Control Number back to you.¹

DHS doesn’t publish a turnaround time for these recovery requests, and the FAQ notes that review timelines vary depending on the concerns raised, so accurate identifying information helps staff match your records faster.⁴ Postal mail is also an option: DHS Traveler Redress Inquiry Program (DHS TRIP), 6595 Springfield Center Drive, TSA-910, Springfield, VA 20598-6901.

This is a recovery request for a number you already have. You don’t need to file a fresh redress application just because the code is missing.

If You’ve Never Had a Redress Number

Not everyone has one, and not everyone needs one.¹ The program is for travelers who have run into repeated screening delays, secondary inspections, or boarding denials tied to name confusion or misidentification. If nothing was ever assigned to you, there’s nothing to look up. You can apply for free through the DHS TRIP portal, and the status of any application you file will show in the same portal where a closed-case number would later appear.⁴

1
Department of Homeland Security. Redress Control Numbers
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Department of Homeland Security. Traveler Redress Inquiry Program (DHS TRIP)
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Department of Homeland Security. Step 3: Tracking Your Inquiry
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Department of Homeland Security. DHS Traveler Redress Inquiry Program Frequently Asked Questions