San Jose (SJC) to Phoenix (PHX): 621 miles (999 km) great-circle, about 1h 45m nonstop by our estimate. Cheapest fare observed: $409 round-trip on Southwest, nonstop, departing May 1, 2026.
$409 round-trip, Southwest WN481, departing 2026-05-01 at 06:35, returning 2026-05-03. The recorded itinerary left on a Friday, returning on a Sunday 2 nights later; the fare was observed 6 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $409, it ranked 15th of the 30 round-trip fares we recorded from SJC (median $415). That is 65.9 cents per great-circle mile (round-trip price over one-way distance), above the SJC median of 23.1 cents across 30 round-trip routes.
Routes from SJC of similar length: Salt Lake City (583 mi) at $568 and Portland (569 mi) at $462.
Southwest had the cheapest fare on 7 of 30 SJC routes. It is the 25th longest of the 30 routes we track from SJC.
Of 12 departure airports with a fare to Phoenix, San Jose (SJC) ranked 12th at $409. Lowest: $48 from Denver (DEN); highest: $409 from San Jose (SJC); 8 nonstop. Cheapest-fare airlines (routes): Frontier (8), Alaska Airlines (1), JetBlue (1), Southwest (1) and Volaris (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Phoenix; flight time is our estimate.