Speaking of traveling to Hawaii, I've come upon an airline in one of the travel forums I've been frequenting which offers cheap flights to Hawaii from San Francisco. Usual Flights to Hawaii especially in the peak season ranges from $600-$700 and the flights on this website is about half the price of other airlines. Around $350-$400.

Anyways, of course I haven't tried out this airline obviously since I haven't been to the US but if you're desperate for cheap flights to Hawaii, the website/airline is Airtech.