Answer: deadheading

AnswerCrossword Clue
DEADHEADINGTraveling in a bomber just for the ride.
deadheading(of a commercial driver, etc.) Complete a trip without paying passengers or freight
deadheadingRemove dead flowerheads from (a plant) to encourage further blooming
deadheadingRide (in a plane or other vehicle) without paying for a ticket
deadheadingDEADHEAD, to travel without freight