How to add Precheck to Delta?
To add TSA PreCheck to your Delta account, you can do it during the booking process or after booking.
During the booking process: When you are booking a flight on Delta's website or app, you will be asked to enter your Known Traveler Number (KTN). This is your TSA PreCheck number. If you don't have a KTN yet, you can apply for it on the TSA website.
After booking: If you have already booked your flight and you have a KTN, you can add it to your Delta account by going to the Delta website and logging in to your account. Once you are logged in, click on your name in the top right corner of the page and select "Profile." Then, click on "Secure Travel Info" and enter your KTN in the "Known Traveler #" field. Click on "Save" to add your KTN to your account.
