Both American and Delta Airlines have round trip airfares travelling from Atlanta (ATL) for $357 or Miami (MIA) and Philadelphia (PHL) for $374 to Honolulu Hawaii (HNL). The flights on Delta is a basic economy fare. Even on Delta's basic economy, you may still have a free carry-on bag, just no seat assignment.
mid-January thru early March 2018
Use those dates and plug into Priceline [priceline.com]
, Orbitz [orbitz.com]
or Expedia [expedia.com]
to see which airline is flying on your choice of dates. Bundling hotel with airfare will save money.