Willow Airport (IATA: WOW, ICAO: PAUO, FAA LID: UUO) is a state-owned, public-use airport located one nautical mile (1.85 km) northwest of the central business district of Willow, in the Matanuska-Susitna Borough of the U.S. state of Alaska. It is located across the road from Willow Lake and the Willow Seaplane Base (ICAO: 2X2).

As per Federal Aviation Administration records, Willow Airport had 2,703 passenger boardings (enplanements) in calendar year 2008, an increase of 33% from the 2,025 enplanements in 2007. Willow Airport is included in the FAA's National Plan of Integrated Airport Systems (2009-2013), which categorizes it as a general aviation facility.