San Francisco (SFO) to Los Angeles (LAX): 338 miles (543 km) great-circle, about 1h 10m nonstop by our estimate. Cheapest fare observed: $116 round-trip on Frontier, nonstop, departing June 9, 2026.
$116 round-trip, Frontier F92858, departing 2026-06-09 at 20:21, returning 2026-06-13. The recorded itinerary left on a Tuesday, returning on a Saturday 4 nights later; the fare was observed 45 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $116, it ranked 3rd of the 30 round-trip fares we recorded from SFO (median $646). That is 34.4 cents per great-circle mile (round-trip price over one-way distance), above the SFO median of 16.9 cents across 30 round-trip routes.
Routes from SFO of similar length: Las Vegas (413 mi) at $51 and San Diego (447 mi) at $76.
Frontier had the cheapest fare on 7 of 30 SFO routes. It is the 30th longest of the 30 routes we track from SFO.
Of 40 departure airports with a fare to Los Angeles, San Francisco (SFO) ranked 2nd at $116. Lowest: $77 from Seattle (SEA); highest: $1224 from Sapporo (CTS); 11 nonstop. Cheapest-fare airlines (routes): Frontier (18), Spirit (5), Southwest (3), EVA Air (2), Fiji Airways (2) and WestJet (2), plus 8 more.
The reverse, Los Angeles (LAX) to San Francisco (SFO), was $126 round-trip on Frontier, nonstop, departing April 28, 2026. Los Angeles to San Francisco flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Los_Angeles; flight time is our estimate.