San Jose (SJC) to Cancun (CUN): 2,377 miles (3,825 km) great-circle, about 5h 15m nonstop by our estimate. Cheapest fare observed: $893 round-trip on American Airlines, with 1 stop, departing May 22, 2026.
$893 round-trip, American Airlines AA1019, departing 2026-05-22 at 06:00, returning 2026-06-02. The recorded itinerary left on a Friday, returning on a Tuesday 11 nights later; the fare was observed 27 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $893, it ranked 24th of the 30 round-trip fares we recorded from SJC (median $415). That is 37.6 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: Kailua-Kona (2,382 mi) at $358 and Tampa (2,363 mi) at $287.
American Airlines had the cheapest fare on 3 of 30 SJC routes. It is the 14th longest of the 30 routes we track from SJC.
Of 25 departure airports with a fare to Cancun, San Jose (SJC) ranked 23rd at $893. Lowest: $127 from Mexico City (MEX); highest: $2060 from Perth (PER); 4 nonstop. Cheapest-fare airlines (routes): Frontier (6), Aeromexico (4), Air Canada (3), American Airlines (2), Viva Aerobus (2) and AirAsia (1), plus 7 more.
That depends on your passport and trip, so check the official source for Mexico: Instituto Nacional de Migracion (Mexico). Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Cancun; flight time is our estimate.