Sanford Seacoast Regional Airport (IATA: SFM, ICAO: KSFM, FAA LID: SFM) is a public airport located four miles (6 km) southeast of the central business district of Sanford, a city in York County, Maine, United States. The airport operated as Naval Auxiliary Air Facility Sanford (NAAF Sanford, not to be confused with Naval Air Station Sanford, Florida) supporting operations of Naval Air Station Brunswick from 15 April 1943 until 1 February 1946. This airport is now publicly owned by the City of Sanford.

Sanford Regional Airport covers an area of 1,115 acres (451 ha) which contains two runways:

• Runway 7/25: 6,389 x 150 ft (1,947 x 46 m), surface: asphalt
• Runway 14/32: 4,999 x 100 ft (1,524 x 30 m), surface: asphalt

For the 12-month period ending 31 December 2019, the airport had 36,738 aircraft operations, an average of 101 per day: 95% general aviation, 4% air taxi, and <1% military. There was at that time 131 aircraft based at this airport: 105 single engine, 9 multi-engine, 2 jet, 11 helicopter, 3 glider and 1 ultra-light.

There are a fixed-base operator (FBO) and several flight schools on the airfield.

The FBO is Southern Maine Aviation, which has jet fuel, aviation gasoline (100LL) and MoGas (usually available). They also operate an aircraft maintenance facility and a flight school, and have facilities for transient flight crew and passengers.

There are three flight schools on the field:

• Southern Maine Aviation provides instruction in single engine airplanes, an American Champion Citabria, several Cessna 172-SPs, a complex Cessna 182 and a RedBird Simulator.
• York County Helicopters provides instruction in Robinson R22s and R44s.
• Sanford Soaring provides instruction in gliders to club members.

Sanford Naval Air Station Administration Building--Control Tower, Former
Formerly listed on the U.S. National Register of Historic Places
The NAAS tower, c. 1995
Area	less than one acre
Built	1942 (1942)
Built by	United States Navy
Architectural style	WWII naval control towers
NRHP reference No.	97000603
Significant dates
Added to NRHP	20 June 1997
Removed from NRHP	21 March 2023

The Sanford Airport began as an airfield constructed by the Sanford Mills in the 1930s, with a single airstrip and hangar. With the entry of the United States into World War II in 1941, the airfield was expanded by the United States Navy in 1942 and formally commissioned as Naval Auxiliary Air Facility Sanford in 1943. It served as one of several secondary airfields to the primary Naval Air Station Brunswick. Its runway network was enlarged and paved, and barracks and a control tower were built on what is now the southwestern side of the airfield. A torpedo squadron and a fighter squadron were stationed here in 1944, and the field was used for training exercises. After the war ended, the facilities were largely mothballed, but remained staffed until the 1960s. Of the structures built by the Navy, only a hangar and the control tower/administration building survived. The latter, once listed on the National Register of Historic Places, was demolished in 2006–2007 because it was in poor condition and the tower was deemed a hazard to aviation.

In 1955, Colonial Aircraft began production of the Skimmer amphibian in Sanford, Maine. Later in 1959, the type certificate for the Skimmer was sold to the Lake Aircraft Corporation. Lake continued to produce modified versions of the Skimmer in Sanford as the Lake Buckaneer and Lake Renegade until 1994. Six record-breaking flights departing from Sanford Airport took place in Lake Renegades, piloted by Robert Mann and Peter Foster in 1988 and 1989. The flights set new altitude records for piston amphibians and seaplanes, flying to a maximum altitude of 27,300 feet.

• List of airports in Maine
• National Register of Historic Places listings in York County, Maine

• Sanford Regional Airport (City of Sanford web site)
• Resources for this airport:
  • FAA airport information for SFM
  • AirNav airport information for KSFM
  • ASN accident history for SFM
  • FlightAware airport information and live flight tracker
  • NOAA/NWS weather observations: current, past three days
  • SkyVector aeronautical chart, Terminal Procedures