Tri-Cities Airport is a public airport in the northwest United States in Franklin County, Washington. Located two miles (3 km) northwest of Pasco, it serves the Tri-Cities metropolitan area in southeast Washington, and is the third largest commercial airport in the state. The facility has three runways and covers 2,235 acres.

Pasco is a city in, and the county seat of, Franklin County, Washington, United States. The population was 77,108 at the 2020 census, and 79,315 as of the July 1, 2022 estimate.