Marlboro Airport, (IATA: 9B1, ICAO: K9B1) in Marlboro, Massachusetts, is a public airport currently owned by Sandra A. Stetson
It has one runway, averages 37 flights per day, and has approximately 40 aircraft based on its field.
Marlboro Airport was founded in 1922, the era when barnstormers flew "by the seat of their pants." It is the oldest continuously operating commercial field in the state of Massachusetts. Currently it hosts one Fixed Base Operator, Don's Flying Service, named for former airport manager Don LaCouture Sr.
Don's Flying Service offers flight instruction, tie-downs and hangar space, and major and minor aircraft repairs.
Chapter 673 of the Experimental Aircraft Association is based at Marlboro Airport. Also known as The Marlboro Antiquers (since many of the founding members owned antique airplanes), the chapter has about 40 members.
Young Eagles flights available by appointment for children ages 8–17.
Civil Air Patrol's Lt Col Frank Pocher Minute Man Squadron (commanded by Major Sharon B. Ingraham) is based out of this airfield.