Hawaiian Airlines is either offering a remarkable deal right now or has a website glitch that is pricing ICN-LAX/SAN/PHX/SFO/LAS/SEA (etc) tickets at $699 r/t in Business Class. The first flight from ICN-HNL is on Korean Airlines and a layover of up to 23 hours can be squeezed into HNL. This deal can only be booked on Hawaiian Airlines’ website. Most dates appear to work.
Combine this with a one-way UA award and you are good to go!