The Portland Flying Service, a monoplane charter airline, specialized in aerial photography. In 1935, it joined a handful of other air services at the newly formed Portland airport. About this time, aerial photography saw an increase in popularity, not only for geographic surveys, but in the case of Guy Gannett and his newspapers, to highlight local interest stories and document celebrations and events.

The Portland Flying Service lasted until 1943, likely effected by the second World War. After the war, a later iteration of the business was based in Scarborough on Pleasant Hill Rd. It continued through the 1960s.