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

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

One-Way flights

02 Dec Southwest Airlines
01 Dec Southwest Airlines
15 Dec Southwest Airlines
13 Dec Southwest Airlines
14 Dec Southwest Airlines
27 Dec Avianca
29 Dec Southwest Airlines
25 Dec Southwest Airlines
18 Dec Southwest Airlines
12 Dec Air Canada

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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