San Diego (SAN) to Dallas (DFW): 1,168 miles (1,880 km) great-circle, about 2h 50m nonstop by our estimate. Cheapest fare observed: $125 round-trip on Frontier, nonstop, departing May 26, 2026.
$125 round-trip, Frontier F91426, departing 2026-05-26 at 06:25, returning 2026-05-30. The recorded itinerary left on a Tuesday, returning on a Saturday 4 nights later; the fare was observed 31 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $125, it ranked 3rd of the 30 round-trip fares we recorded from SAN (median $279). That is 10.7 cents per great-circle mile (round-trip price over one-way distance), below the SAN median of 15.0 cents across 30 round-trip routes.
Routes from SAN of similar length: Austin (1,162 mi) at $190 and Seattle (1,051 mi) at $172.
Frontier had the cheapest fare on 16 of 30 SAN routes. It is the 22nd longest of the 30 routes we track from SAN.
Of 27 departure airports with a fare to Dallas, San Diego (SAN) ranked 2nd at $125. Lowest: $106 from Atlanta (ATL); highest: $1741 from Hyderabad (HYD); 14 nonstop. Cheapest-fare airlines (routes): Frontier (13), Spirit (5), American Airlines (2), Qatar (2), Alaska Airlines (1) and Emirates (1), plus 3 more.
The reverse, Dallas (DFW) to San Diego (SAN), was $134 round-trip on Frontier, nonstop, departing June 6, 2026. Dallas to San Diego flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Chicago; flight time is our estimate.