Spokane International Airport (IATA: GEG, ICAO: KGEG, FAA LID: GEG) is a commercial airport in Spokane, Washington, United States, located approximately 7 miles (11 km) west-southwest of Downtown Spokane. It is the primary airport serving the Inland Northwest, which consists of 30 counties and includes areas such as Spokane, the Tri-Cities, both in Eastern Washington, and Coeur d'Alene in North Idaho. The airport's code, GEG, is derived from its former name, Geiger Field, which honored Major Harold Geiger (1884–1927).

As of 2015, Spokane International Airport (GEG) ranks as the 70th-busiest airport in the United States in terms of passenger enplanements. At 4,131,266 total passengers served in 2023, it is the second busiest airport in Washington. GEG is served by six airlines with non-stop service to 15 airports in 13 markets.

It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a small-hub primary commercial service facility.