Cheapest one-way flights from Ontario to San Jose in July from $298

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

AirHint found the following cheapest one-way flights from Ontario (ONT) to San Jose (SJO) in July 2025 (see full year).

One-Way flights

07 Jul Southwest Airlines
10 Jul Southwest Airlines
09 Jul Southwest Airlines
05 Jul Southwest Airlines
03 Jul Avianca
06 Jul Southwest Airlines
08 Jul Avianca
13 Jul Southwest Airlines
02 Jul Southwest Airlines
04 Jul Volaris

Also check the deals for return flights from Ontario to San Jose in July.

Skyscanner

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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