San Diego (SAN) to Los Angeles (LAX): 109 miles (176 km) great-circle, about 0h 45m nonstop by our estimate. Cheapest fare observed: $277 round-trip on Southwest, with 1 stop, departing May 2, 2026.
$277 round-trip, Southwest WN3093, departing 2026-05-02 at 07:10, returning 2026-05-02. The recorded itinerary left on a Saturday and came back the same day; the fare was observed 7 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $277, it ranked 15th of the 30 round-trip fares we recorded from SAN (median $279). That is 253.7 cents per great-circle mile (round-trip price over one-way distance), above the SAN median of 15.0 cents across 30 round-trip routes.
Routes from SAN of similar length: Las Vegas (259 mi) at $52 and San Francisco (447 mi) at $185.
Southwest had the cheapest fare on 3 of 30 SAN routes. It is the 30th longest of the 30 routes we track from SAN.
Of 40 departure airports with a fare to Los Angeles, San Diego (SAN) ranked 26th at $277. 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.
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.