[2023-05-09 15:17:00] Maui and Kona are still available, but the Honolulu fares are expired or removed.
Delta has round-trip flights from Houston (IAH) to Honolulu, Maui, or Kona, Hawaii (HNL, OGG, KOA) for $378 with a connection. Flights August to October. No Weekends. Departures on Monday, Tuesday, Wednesday, and Thursday. Origin/Destination reversible.
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.