You have not mentioned your destination city within Hawaii, so I can give you the flight durations for a few cities. The flights timings do vary because of the stops that planes make so I will give you a range:
- Honolulu: The flight duration varies between 12 hours 10 minutes (1 stop) to 15 hours to 36 hours and 50 minutes (2 stops).
- Hoolehua: Flight duration varies between 15 hours 25 minutes and 40 hours 10 minutes.
- Lanai City: Flight duration will vary between 16 hours and 15 minutes to 43 hours and 10 minutes.
- Kalaupapa: The flight duration ranges between 16 hours 40 minutes and 19 hours 55 minutes.