Austin (AUS) to San Francisco (SFO): 1,502 miles (2,417 km) great-circle, about 3h 30m nonstop by our estimate. Cheapest fare observed: $238 round-trip on United Airlines, nonstop, departing June 25, 2026.
$238 round-trip, United Airlines UA1348, departing 2026-06-25 at 05:20, returning 2026-06-30. The recorded itinerary left on a Thursday, returning on a Tuesday 5 nights later; the fare was observed 61 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $238, it ranked 8th of the 30 round-trip fares we recorded from AUS (median $292). That is 15.8 cents per great-circle mile (round-trip price over one-way distance), below the AUS median of 22.5 cents across 30 round-trip routes.
Routes from AUS of similar length: New York (1,519 mi) at $219 and Kalispell (1,527 mi) at $429.
United Airlines had the cheapest fare on 5 of 30 AUS routes. It is the 14th longest of the 30 routes we track from AUS.
Of 19 departure airports with a fare to San Francisco, Austin (AUS) ranked 8th at $238. Lowest: $126 from Los Angeles (LAX); highest: $483 from New York (JFK); 6 nonstop. Cheapest-fare airlines (routes): Frontier (13), Southwest (3), American Airlines (1), United Airlines (1) and WestJet (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Los_Angeles; flight time is our estimate.