Imperial County Airport  Imperial County Airport is a county-owned public-use airport in Imperial County, California, United States. Also known as Boley Field, it is mostly used for general aviation, but has scheduled passenger service from one commercial airline. Service is subsidized by the Essential Air Service program. The airport is located one nautical mile (2 km) south of the central business district of Imperial, California, partially in the City of Imperial and partially in an unincorporated area of Imperial County. It serves nearby communities, including El Centro. As per the Federal Aviation Administration, this airport had 7,061 passenger boardings (enplanements) in calendar year 2008, 5,641 in 2009, and 4,752 in 2010. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a "non-primary commercial service" airport. The first scheduled passenger airline flights were operated by Western Airlines with Douglas DC-3s with service beginning during the late 1940s. Western's service was followed by Bonanza Air Lines in the early 1950s also flying DC-3s. Imperial County Airport covers an area of 370 acres (150 ha) at an elevation of 54 feet (16 m) "below" mean sea level. It has two asphalt paved runways: 14/32 is 5,308 by 100 feet (1,618 x 30 m) and 8/26 is 4,501 by 75 feet (1,372 x 23 m). For the 12-month period ending December 31, 2011, the airport had 14,589 aircraft operations, an average of 39 per day: 71% general aviation, 10% scheduled commercial, 2% air taxi, and 17% military. At that time there were 47 aircraft based at this airport: 83% single-engine, 8.5% multi-engine, and 8.5% helicopter. The following airline offers scheduled passenger service: SeaPort Airlines previously operated Cessna 208 Caravan single turboprop engine aircraft on all scheduled flights from the airport. On January 19, 2016, Seaport Airlines announced the cessation of all service within California, citing their inability to find pilots as the reason. Western Airlines was serving Imperial County Airport during the late 1940s with Douglas DC-3 flights to Los Angeles via stops in San Diego and Long Beach, and was also flying nonstop to Yuma. Bonanza Air Lines, a "local service" air carrier as defined by the federal Civil Aeronautics Board (CAB), began serving the airport during the early 1950s .