American Airlines have two weeks in September available for round trip airfares travelling from Atlanta (ATL) to Honolulu Hawaii (HNL) for $454, making 1 stop. This is a main cabin fare.
Departs Sept 13-14, 16-21, 23-27
Returns: Sept 14, 16-21, 23-28, 30; Oct 1-4, 7-10, 15-19, 24-26, 28-31
Use dates and plug into Priceline [priceline.com]
or American Airlines [aa.com]
. If the dates that you want isn't available, Priceline will suggest different dates similiar to what you originally want. Bundling hotel with airfare will save money.