Seward Airport is a state-owned, public-use airport located two nautical miles (2.3 miles; 3.7 km) northeast of the central business district of Seward, a city in Kenai Peninsula Borough of the U.S. state of Alaska. It has two asphalt paved runways.

The airport was built during World War II. It was named Walseth Air Force Base and was closed by the United States Air Force in April 1947. It was excessed to the War Assets Administration and taken over by the Territory of Alaska.

The airport previously had scheduled passenger service to Anchorage (ANC) provided by several commuter air carriers over the years but does not have airline flights at the present time.