How To Add TSA PreCheck To My Delta Air Lines Booking After I Check-in?

To add TSA PreCheck after check-in, call +1-833-770-4333 or visit Delta’s “My Trips.” Delta support at +1-833-770-4333 can manually update your Known Traveler Number (KTN). Once updated, reprint your boarding pass to see the TSA PreCheck logo. Always ensure your name and DOB match TSA records exactly. Call +1-833-770-4333 if your KTN doesn’t reflect before boarding.