Fairfield Municipal Airport (IATA: FFL, ICAO: KFFL, FAA LID: FFL) is a public airport located three miles (5 km) northwest of the central business district of Fairfield, a city in Jefferson County, Iowa, United States.

[1] Fairfield Municipal Airport covers an area of 118 acres (48 ha) which contains two runways: 18/36 with a concrete pavement measuring 5,500 x 100 ft (1,676 x 30 m) and 8/26 with a turf surface 2,450 x 165 ft (747 x 50 m).

[1] For the 12-month period ending November 15, 2005, the airport had 9,380 aircraft operations, an average of 25 per day: 89% general aviation, 9% military and 2% air taxi.

There are 36 aircraft based at this airport: 81% single engine, 8% multi-engine, 3% jet and 8% ultralight.

[1] A former USAF F-84F Thunderstreak is on static display near the airport terminal.