Honolulu International Airport is the major aviation gateway for the State of Hawaii. It is the primary hub for domestic overseas and interisland flights and to a lesser extent now, a gateway to the South Pacific and Asia. Honolulu International also functions as a joint military-civilian airport sharing airfield facilities with Hickam Air Force Base. Obviously most traffic is tourist related from the U.S. and Japan so in many cases airlines operate specially configured 2-class (no business class) aircraft into the market. HNL is very busy, but its unique "open air" design makes it one of the least stressful airports I´ve ever visited. This aiport is the home base and hub of Hawaiian and Go! Airlines; and until 2008 was the home of Aloha Airlines.