Cheapest one-way flights from Ontario to San Jose in August from 179€

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

One-Way flights

18 Aug Southwest Airlines
19 Aug Southwest Airlines
20 Aug Southwest Airlines
26 Aug Southwest Airlines
30 Aug Avianca
21 Aug Southwest Airlines
22 Aug Southwest Airlines
17 Aug Southwest Airlines
31 Aug Southwest Airlines

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

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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