Port Allen Airport is a regional airport of the State of Hawai'i. It is located 1NM southwest of the unincorporated town of Hanapepe on the south shore of the island of Kauai. Most flights to Port Allen Airport originate from commuter airports on the other Hawaiian islands by unscheduled air taxis and general aviation.It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a general aviation facility.HistoryThe 1928 the Territorial legislature allotted $15,000 to establish an airport on Kauai, and purchased land at its present site. The first flight from Port Allen Airport, by Inter-Island Airways, was in November 1929.Facilities and aircraftPort Allen Airport covers an area of 179acre at an elevation of above mean sea level. It has one runway designated 9/27 with an asphalt surface measuring 2,450by.The airport has separate parking areas for fixed wing aircraft and helicopters and a public parking area. There are no other public facilities at the airport. Access to the airport is provided by Kaalani Road, which connects the airport with Lolokai Road and Highway 50. The principal planned improvements are the development of helicopter lease lots to the eastern end of the airport, construction of public comfort stations and minor roadway improvements.