How to add Precheck to Delta?
There are two ways to add TSA PreCheck to your Delta Airlines account:
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 following these steps:
Go to the Delta website and log in to your account.
Click on your name in the top right corner of the page and select "Profile."
Click on "Secure Travel
