Tukwila is a suburban city in King County, Washington, United States, located immediately to the south of Seattle. The population was 21,798 at the 2020 census.

Seattle–Tacoma International Airport is the primary international airport serving Seattle and its metropolitan area in the U.S. state of Washington. It is in the city of SeaTac, which was named after the airport's nickname “Sea–Tac”, approximately 14 miles (23 km) south of Downtown Seattle and 18 miles (29 km) north-northeast of Downtown Tacoma. The airport is the busiest in the Pacific Northwest region of North America and is owned by the Port of Seattle.