United and Delta have round-trip flights from Dallas (DFW) to Honolulu (HNL) for $372-$388 with a connection. Flights in May, August, September, October, November, and December. Departures on Monday, Tuesday, Wednesday, Thursday, and Sunday. No Fridays or Saturdays. Extended weekends available. Origin/Destination reversible. Holiday blackouts.
A Carry-on bag and also a personal item is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.