Phantom Traveler Demon

The Phantom Traveler was a demon that Sam and Dean exorcised when it boarded a plane intent on killing several passengers that had survived a plane crash it had started several years earlier. He was going after the survivors. He possessed several people of the original crash and killed them, finally possessing the captain of a plane that he was going to bring down. Sam and Dean boarded the plane, the plane almost goes down but is stopped when the demon is finally exorcised.