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 it's 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 Aloha, Hawaiian, and Go! Airlines.