[6] In addition to scheduled service from Alaska Airlines (through its Horizon Air subsidiary), both universities use the airport for jet charters for their intercollegiate athletic teams.

[7] Aviation at the site began in the 1920s as a grass strip, which was later improved by the Civilian Conservation Corps (CCC) and Works Progress Administration (WPA); the runway was first paved in 1946,[6] and lengthened to 6,800 feet (2,070 m) in 1968 with an 1,800-foot (550 m) extension to the west.

[17] Prior to Horizon, Cascade Airways (1969–1986) was the main carrier at the airport,[18] starting Palouse service in late 1971,[19] and had over 16,500 boardings at Pullman–Moscow in 1977.

[1] The airport was annexed by the City of Pullman in August 1988,[24] and ground was broken in April 1989 to replace the small, outdated passenger terminal of 1957.

[citation needed] A vending machine in the terminal's pre-security area sold canned local Cougar Gold cheese made by the nearby Washington State University.

[35] The public airport shares the runway with a fixed-base operator, Interstate Aviation, which conducts chartered air service and flight school.

For the 12-month period ending January 1, 2014, the airport had 29,350 aircraft operations, an average of 80 per day: 85% general aviation, 14% scheduled commercial, 1% air taxi, and <1% military.