The service to Hawaii IS the same as for international flights. In fact, one thing people sometimes don't know is that you get free President's Club access for the day of travel when flying first class to Hawaii. So get to the airport early, check in and make sure your bags have plenty of time to get to the plane, then go to the PC to relax and start enjoying the free drinks!
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CO plat, UA prem; Marriott plat, Hyatt plat, Hilton gold, Starwood gold, Fairmont gold; Avis select, Hertz 5-star