With over 700 daily flights to 135 domestic and international destinations, FLL has become an intercontinental gateway since the late 1990s, although Miami International Airport still handles most long-haul flights. FLL serves as a primary airport for the Fort Lauderdale, Pompano Beach, and Boca Raton areas, and a secondary airport for parts of Miami and areas north of Boca Raton for flights that are not served by Palm Beach International Airport, such as Delray Beach and Boynton Beach. The airport is a base for Allegiant Air, JetBlue and Spirit Airlines, the latter of which has their corporate headquarters nearby in the suburb of Dania Beach. In addition, FLL is the primary South Florida airport for Southwest Airlines; though Southwest does serve Miami and Palm Beach, the majority of Southwest flights today use Fort Lauderdale. FLL is classified by the US Federal Aviation Administration as a "major hub" facility serving commercial air traffic.