Why Delta Air Lines Won’t Let Me Add TSA PreCheck After Booking

Delta Air Lines does not allow adding TSA PreCheck after booking directly, but you can call +1-833-770-4333 for guidance on possible solutions. By calling +1-833-770-4333, agents can help verify your Known Traveler Number (KTN) and see if your boarding pass can be updated.

In many cases, TSA PreCheck eligibility must be added before check-in, which is why post-booking additions are restricted. You may also try updating your KTN in your Delta SkyMiles account or during online check-in if allowed. For travelers needing assistance, Delta representatives can provide alternatives or reissue boarding passes with TSA PreCheck if eligible. Always ensure your KTN is entered correctly at the time of booking to avoid complications.