San Francisco (SFO) to Kailua-Kona (KOA): 2,366 miles (3,808 km) great-circle, about 5h 15m nonstop by our estimate. Cheapest fare observed: $286 round-trip on Alaska Airlines, nonstop, departing May 16, 2026.
$286 round-trip, Alaska Airlines AS39, departing 2026-05-16 at 07:00, returning 2026-05-20. The recorded itinerary left on a Saturday, returning on a Wednesday 4 nights later; the fare was observed 21 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $286, it ranked 7th of the 30 round-trip fares we recorded from SFO (median $646). That is 12.1 cents per great-circle mile (round-trip price over one-way distance), below the SFO median of 16.9 cents across 30 round-trip routes.
Routes from SFO of similar length: Honolulu (2,397 mi) at $295 and Washington (2,413 mi) at $208.
Alaska Airlines had the cheapest fare on 7 of 30 SFO routes. It is the 23rd longest of the 30 routes we track from SFO.
Of 2 departure airports with a fare to Kailua-Kona, San Francisco (SFO) ranked 1st at $286. Lowest: $286 from San Francisco (SFO); highest: $358 from San Jose (SJC); 1 nonstop. Cheapest-fare airlines (routes): Alaska Airlines (2).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Pacific/Honolulu; flight time is our estimate.