Cheapest return flights from Ontario to San Jose in March from 428€

AirHint found the following cheapest return flights from Ontario (ONT) to San Jose (SJO) in March 2026 (see full year).

Return flights

04 Mar - 10 Mar Southwest Airlines
30 Mar - 15 Apr Southwest Airlines
04 Mar - 08 Mar Southwest Airlines
14 Mar - 21 Mar Southwest Airlines
23 Mar - 27 Mar Southwest Airlines
28 Mar - 06 Apr Southwest Airlines
16 Mar - 23 Mar Southwest Airlines
24 Mar - 03 Apr Southwest Airlines
07 Mar - 13 Mar Southwest Airlines
01 Mar - 29 Mar Southwest Airlines
22 Mar - 28 Mar Southwest Airlines
15 Mar - 19 Mar Southwest Airlines

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

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