American Airlines has round-trip flights from Dallas (DFW) to Kona or Kauai (KOA, LIH) for $358 with a connection. Lihue flights in April, August, September, October, November, and December. Kona flights April, May, August, September, October, and November. Origin/Destination reversible. Holiday blackouts.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Read More Cheap Flights: Dallas to/from Kona or Lihue-Kauai, Hawaii $358 r/t [Apr, Aug-Dec] (No Christmas / Thanksgiving) – American Airlines