Monroe Regional Airport and Walla Walla Regional Airport are both considered to be?
Monroe Regional Airport (Louisiana) Monroe Regional Airport (IATA: MLU, ICAO: KMLU, FAA LID: MLU) is a public use airport in Ouachita Parish, Louisiana, United States. The airport is owned by the City of Monroe and is located three nautical miles (6 km) east of its central business district.
Richland Airport (Washington) Richland Airport (IATA: RLD, ICAO: KRLD, FAA LID: RLD) is a public airport located two miles (3 km) northwest of the central business district of Richland, a city in Benton County, Washington, United States. It is owned by the Port of Benton.