Okanogan Legion Airport (FAA LID: S35) is a city-owned, public-use airport located one nautical mile (2 km) east of the central business district of Okanogan, a city in Okanogan County, Washington, United States.

[1] Okanogan Legion Airport covers an area of 30 acres (12 ha) at an elevation of 1,042 feet (318 m) above mean sea level.

It has one runway designated 4/22 with an asphalt surface measuring 2,533 by 36 feet (772 x 11 m).

[1] For the 12-month period ending May 30, 2012, the airport had 4,100 aircraft operations, an average of 11 per day: 98% general aviation and 2% air taxi.

At that time there were 14 aircraft based at this airport: 86% single-engine, 7% multi-engine, and 7% ultralight.