We just came across one of the best prices to Hawaii we've seen.
From $309 Return from Sydney in Economy, $699 in Business (Business is One Way for $699).
Example date: 16 Mar to 12 Apr - $189 + $120 = $309 return.
Bags and food not included.
For dates/prices, compare with the Qantas sale also on at present to Honolulu - more expensive but a full service airline. Depends what you're after.