Harry Stern Airport (IATA: WAH, ICAO: KBWP, FAA LID: BWP) is a public use airport in Richland County, North Dakota, United States. It is located one nautical mile (1.85 km) south of the central business district of Wahpeton, North Dakota and owned by the Wahpeton Airport Authority. Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, Enterprise Municipal Airport is assigned BWP by the FAA and WAH by the IATA (which assigned BWP to Bewani, Papua New Guinea).