Cheapest return flights from Ontario to San Jose in June from $504

Best time to book flights for Ontario (ONT) to San Jose (SJO) flights at AirHint

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

Return flights

16 Jun - 23 Jun Avianca
24 Jun - 01 Jul Southwest Airlines
26 Jun - 05 Jul Volaris
19 Jun - 24 Jun Avianca
27 Jun - 08 Jul Southwest Airlines
13 Jun - 22 Jun Southwest Airlines
14 Jun - 22 Jun Avianca
19 Jun - 22 Jun Avianca
10 Jun - 25 Jun Southwest Airlines
06 Jun - 28 Jun Southwest Airlines
11 Jun - 16 Jun Southwest Airlines
12 Jun - 21 Jun Southwest Airlines
25 Jun - 04 Jul Southwest Airlines
01 Jun - 07 Jun Avianca

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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