Where can I find flight times for specific flight? For instance San Fran to Honolulu Hawaii.
I usually check on Flightradar24. If the route is operated by any airline it will have some stats about it like the average time or the distance between the two airports.
It’s fast and accurate.
I use this one:
https://www.flight-durations.com/ It’s just a quick estimate guide
Look in SimBrief, FlightAware, or Flightradar24
Google works pretty good too.