San Jose (SJC) to Las Vegas (LAS): 386 miles (620 km) great-circle, about 1h 15m nonstop by our estimate. Cheapest fare observed: $157 round-trip on Frontier, nonstop, departing July 16, 2026.
$157 round-trip, Frontier F91590, departing 2026-07-16 at 14:12, returning 2026-07-19. The recorded itinerary left on a Thursday, returning on a Sunday 3 nights later; the fare was observed 82 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $157, it ranked 2nd of the 30 round-trip fares we recorded from SJC (median $415). That is 40.7 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: San Diego (417 mi) at $119 and Los Angeles (308 mi) at $229.
Frontier had the cheapest fare on 5 of 30 SJC routes. It is the 29th longest of the 30 routes we track from SJC.
Of 32 departure airports with a fare to Las Vegas, San Jose (SJC) ranked 10th at $157. Lowest: $51 from San Francisco (SFO); highest: $465 from Los Cabos (SJD); 16 nonstop. Cheapest-fare airlines (routes): Frontier (24), Alaska Airlines (2), Air Canada (1), American Airlines (1), JetBlue (1) and Southwest (1), plus 2 more.
The reverse, Las Vegas (LAS) to San Jose (SJC), was $270 round-trip on Frontier, 1 stop, departing July 16, 2026. Las Vegas to San Jose 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.