A Delta Air Lines aircraft.AaronP/Bauer-Griffin/GC ImagesAn unticketed passenger was caught on board a Delta Air Lines plane, officials from the airline said.The incident reportedly occurred on Christmas Eve at Seattle-Tacoma International Airport.It comes weeks after another person tried to fly from New York to Paris without a boarding pass.A Delta Air Lines passenger was caught trying to fly to Hawaii without a boarding pass on Christmas Eve, several media outlets reported.An unticketed passenger was discovered as Delta flight 487 was taxiing to the runway at Seattle-Tacoma International Airport, Delta said in a statement to CBS News.The Port of Seattle told CNN the plane then returned to the terminal, where the suspect departed.