Northern Virginia from the older National Airport (a focus city for American Airlines) are restricted for distance, frequency, and flight paths due to the proximity to federal facilities, Dulles is the region's second busiest airport in both passenger loadings and aircraft movements, and the sixteenth-busiest airport in the United States by takeoffs and landings in 2007. Dulles is the region's primary international gateway, serves as a hub for United Airlines, and has recently improved its low-cost carrier offerings with the addition of multiple flights by Southwest and JetBlue. Commuters are served by the Washington Metro subway and the Virginia Railway Express, a
Plant City Airport Plant City Airport Plant City Airport is a public-use airport located two nautical miles (4 km) southwest of the central business district of Plant City in Hillsborough County, Florida, United States. The airport is publicly owned by the Hillsborough County Aviation Authority, which also operates Tampa International Airport. It was formerly known as Plant City Municipal Airport. It supports a industrial park located about one mile (1.6 km) east of the airport. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned PCM by the FAA but PCM stands for a