Enter your Known Traveler Number (KTN) when you book your flight on flyfrontier.com. You can also enter this post-booking and when checking in.
The TSA precheck number and NEXUS, SENTRI, or Global Entry card itself can not be used to access TSA PreCheck lanes, however, if you provide your TSA PreCheck to Alternative Airlines at the time of booking, we'll take care the rest and make sure that your known traveler number is lin...
To add PreCheck to Delta, after your PreCheck application has been approved, log in to your Delta SkyMiles account to update your profile. The TSA PreCheck/Known Traveler ID field can be found under "Personal Details." Adding your Known Traveler Number to new Delta bookings To add your Pre...