Cheapest one-way flights from Ontario to San Jose in October from 206€

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

One-Way flights

21 Oct Southwest Airlines
22 Oct Southwest Airlines
20 Oct Southwest Airlines
04 Oct Copa
19 Oct Southwest Airlines
05 Oct Southwest Airlines
17 Oct Southwest Airlines
24 Oct Southwest Airlines
23 Oct Southwest Airlines
31 Oct Southwest Airlines

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

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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