Hawaiian Airlines has just posted a sale on their flights (August-November 2013), starting at $342 return from San Jose (taxes in). Nice!
Allegiant Airlines is up to its tricks with good prices also - $325 return all in from Bellingham WA. However, I heard that Allegiant was talking about discontinuing certain flights to Hawaii, such as from Eugene OR, so definitely look into that.
Today is the last day of that Westjet sale I mentioned the other day (for our Canadian friends). Did you know that about half our condo guests are Canadian? Unfortunately Air Canada/United does not fly directly to Maui in the low-season months.