- Ephrata Airport is a public-use airport located in Ephrata, Washington, United States. It is a small airport that primarily serves general aviation and private aircraft. The airport has one runway and offers services such as fueling, aircraft maintenance, and hangar rentals. It is owned and operated by the Port of Ephrata. The airport does not have any commercial airline service, and the closest major airport is Grant County International Airport, located approximately 30 miles to the southwest.