Astoria Regional Airport (IATA: AST, ICAO: KAST, FAA LID: AST) is a joint civil-military public airport in Warrenton, three miles southwest of Astoria, in Clatsop County, Oregon.

Flights to Portland International Airport were most recently provided by SeaPort Airlines from March 2008[2] until Spring of 2010.

Federal Aviation Administration records say the airport had 1,851 passenger boardings (enplanements) in calendar year 2008,[4] 1,531 in 2009 and 3,482 in 2010.

[5] The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation facility based on enplanements in 2008 (the commercial service category requires 2,500 per year)[6] but it would be categorized as commercial service - non-primary based in enplanements in 2010.

[1] In the year ending September 17, 2019 the airport had 38,721 aircraft operations, average 106 per day: 59% general aviation, 36% military, and 4% air taxi.