While LAX is the busiest airport in the Greater Los Angeles Area, other airports, including Bob Hope Airport, John Wayne Airport, Long Beach Airport, and LA/Ontario International Airport, also serve the region. It is also notable for being one of the few U.S. airports with four parallel runways.
LAX serves as a hub for American Airlines, Delta Air Lines,[1] United Airlines, and Virgin America. The airport serves as a focus city for Allegiant Air, Air New Zealand, Qantas, Southwest Airlines, Spirit Airlines and Volaris. LAX serves as either a hub or focus city for more Mainline US Carriers than any other airport in the Country and is the only airport that all three legacy carriers have designated a hub.