Cheapest return flights from Ontario to San Jose in June from $432

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

03 Jun - 10 Jun Avianca
01 Jun - 08 Jun Avianca
03 Jun - 15 Jun Avianca
22 Jun - 29 Jun Avianca
03 Jun - 12 Jun Avianca
22 Jun - 26 Jun Avianca
10 Jun - 12 Jun Volaris
26 Jun - 03 Jul Avianca
04 Jun - 08 Jun jetBlue
14 Jun - 28 Jun Avianca
14 Jun - 21 Jun Avianca
28 Jun - 07 Jul Avianca
28 Jun - 06 Jul Avianca
29 Jun - 06 Jul Avianca
04 Jun - 09 Jul jetBlue
30 Jun - 05 Jul Southwest Airlines
25 Jun - 09 Jul Southwest Airlines
28 Jun - 04 Jul Avianca
30 Jun - 07 Jul Volaris

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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