Pacific Coastal Airlines Vice President Spencer Smith said the survivor was a passenger. He said the pilot, who was among the dead, was quite experienced.
Coast Guard and Search and Rescue crews started scouring the area of Thormanby Island, off British Columbia's coast north of Vancouver, after a resident reported hearing an aircraft in distress Sunday morning.
Not long after the report, the rescue center received a call from an official with Pacific Coastal Airlines, reporting that one of its planes was missing.
It was the second deadly crash for Pacific Coast airlines since August when another Grumman Goose went down on Vancouver Island and killed five people.
The wreckage was in dense bush and the two survivors were found quickly only because one of them clambered up a mountainside to a spot he could get cell phone reception.