The PreCheck program requires fingerprints and a background check . When it was first released , the program was only available on Delta and American Airlines , but US Airways , United Airlines and Alaska Airlines were later included . More travelers can enroll online later this year . TSA , which have for years sought to balance security with passenger convenience . Several airlines , including Delta , American , United , and Southwest responded .
The PreCheck program requires fingerprints and a background check . More travelers can enroll online later this year . TSA , which have for years sought to balance security with passenger convenience . Several airlines , including Delta , American , United , and Southwest responded .