Cheapest return flights from Ontario to San Jose in November from $371

AirHint found the following cheapest return flights from Ontario (ONT) to San Jose (SJO) in November 2025 (see full year).

Return flights

07 Nov - 11 Nov United
06 Nov - 14 Nov United
13 Nov - 18 Nov Avianca
06 Nov - 13 Nov Avianca
12 Nov - 15 Nov Southwest Airlines
06 Nov - 20 Nov Avianca
08 Nov - 15 Nov Southwest Airlines
10 Nov - 15 Nov Southwest Airlines
03 Nov - 04 Nov Southwest Airlines
08 Nov - 22 Nov Southwest Airlines
25 Nov - 01 Dec Volaris
30 Nov - 06 Dec Southwest Airlines
29 Nov - 05 Dec Southwest Airlines
20 Nov - 02 Dec Southwest Airlines
26 Nov - 02 Dec Southwest Airlines
26 Nov - 05 Dec Southwest Airlines
25 Nov - 02 Dec Southwest Airlines

Also check the deals for one-way flights from Ontario to San Jose in November.

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