Oceanside Municipal Airport is a public airport located two miles (3 km) northeast of the central business district of Oceanside, a city in San Diego County, California. The airport covers 43 acres and has one runway. It is mostly used for general aviation. The airport is operated and managed by Airport Property Ventures. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Oceanside Municipal Airport is assigned OKB by the FAA and OCN by the IATA.