How Do You Add TSA PreCheck to Delta Airlines Register online or in person at an enrollment centre to add TSA PreCheck to your Delta Airlines reservation. A Known Traveller Number (KTN) will be issued to you following clearance. Go into your Delta Airlines frequent flyer account, select Personal Information or Preferences, and input your KTN. you get quicker airport security screening, make sure you check the TSA PreCheck status on your boarding passes.
