Hi all. Husband and I just returned from Maui via United Airlines. If you are considering flying UAL out of LAX to OGG, don't do it! The planes that they are currently using are so old that they constantly have mechanical failures. We sat on the runway 1 1/2 hours before taking off for Maui and were delayed 6 hours on the return flight (they had to bring another plane out to the island from LA as they couldn't fix ours). These 757s are so bad that the flight attendants complain about them. (Seriously, one attendant begged us to write letters about the planes and another just complained about how bad the airline has become since the Continental merge.)
If you are thinking of upgrading to first class on these flights, think again. In addition to 55,000 points, you will be charged a $125 "co-pay" per person. The first class/premier cabin does not have wi-fi, nor does it have individual movie screens. They still use the little ones that come down from the ceiling and you have to use their special headphones with 1970's adapters if you want to watch the movie. Food was horrible and the seats barely recline. Save your money and points for a better plane.
From all I've read, and observed during the six hours of waiting (UAL didn't tell us that it would be six hours, they just kept extending departure time by 30 minutes), you'd be better off flying to SFO and taking a UAL 777, which is what they fly from that airport. Or better yet, find another airline.