Forks Airport (FAA LID: S18) is a city-owned, public-use airport located one nautical mile (1.85 km) southwest of the central business district of Forks, a city in Clallam County, Washington, United States.

Forks Airport covers an area of 72 acres (29 ha) at an elevation of 299 feet (91 m) above mean sea level.

It has one runway designated 4/22 with an asphalt surface measuring 2,400 by 75 feet (732 x 23 m).

For the 12-month period ending December 31, 2008, the airport had 13,600 aircraft operations, an average of 37 per day: 99.6% general aviation and 0.4% military.

At that time there were 10 aircraft based at this airport: 50% single-engine, 30% helicopter and 20% ultralight.