Cheapest return flights from Ontario to San Jose in March from 435€

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

Return flights

03 Mar - 11 Mar Southwest Airlines
30 Mar - 07 Apr Southwest Airlines
28 Mar - 04 Apr Frontier Airlines
01 Mar - 05 Mar Southwest Airlines
17 Mar - 24 Mar Southwest Airlines
17 Mar - 31 Mar Southwest Airlines
24 Mar - 31 Mar Avianca
18 Mar - 24 Mar Southwest Airlines
30 Mar - 01 Apr Southwest Airlines
04 Mar - 08 Mar Southwest Airlines
10 Mar - 25 Mar Southwest Airlines
03 Mar - 08 Mar Southwest Airlines
09 Mar - 17 Mar Southwest Airlines
30 Mar - 02 Apr Southwest Airlines
27 Mar - 06 Apr Southwest Airlines
29 Mar - 05 Apr Southwest Airlines
27 Mar - 13 Apr Southwest Airlines
27 Mar - 05 Apr Southwest Airlines
28 Mar - 05 Apr Southwest Airlines

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

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