Cheapest one-way flights from Ontario to San Jose in December from 439€

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

One-Way flights

30 Dec Southwest Airlines
29 Dec Southwest Airlines
24 Dec Southwest Airlines
22 Dec Southwest Airlines
23 Dec Southwest Airlines
28 Dec Air Canada
17 Dec Air Canada
27 Dec Southwest Airlines
26 Dec Southwest Airlines
21 Dec Southwest Airlines

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

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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