The person, who boarded the flight without a ticket, was detected as the plane was preparing to take off for Hawaii on Christmas Eve.

After Delta Air Lines said a person was able to board a flight in Seattle without a ticket, a source with knowledge of the situation tells NBC News that the passenger was able to bypass security I.D.

A person who managed to board a Delta Air Lines flight from Seattle to Honolulu on Christmas Eve was arrested after being found before takeoff.