Underwood Airport (ICAO: 44WY) is a small private general aviation facility located near Douglas, Wyoming, in Converse County. It serves private pilots and personal aircraft operations in the region. The airport operates as a private-use facility, meaning it is not open to the general public without prior permission from the owner. It is one of several small airstrips serving the rural communities of eastern Wyoming. Douglas is also served by the Converse County Airport (KDGW), which is the primary public-use airport for the area. Underwood Airport complements local aviation infrastructure for private users.