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Hainan Airlines
Civil aviation provider in China. Includes online reservations, flight finder, news and company information.
http://global.hnair.com/

Harbour Air
Schedules, reservations and tour information about float plane service for Vancouver, Vancouver Island and the Gulf Islands.
http://www.harbour-air.com/

Hawaiian Airlines
Flight schedules, destination and loyalty program information.
http://www.hawaiianair.com/

Horizon Air
Serving the pacific northwest region of the US; reservations, arrival and departures, company profile and employment opportunities.
http://www.horizonair.com