Cheapest one-way flights from Ontario to Buenos Aires in December from $461

AirHint found the following cheapest one-way flights from Ontario (ONT) to Buenos Aires (EZE) in December 2025 (see full year).

One-Way flights

01 Dec Volaris
11 Dec Volaris
23 Dec Volaris
20 Dec Frontier Airlines
30 Dec Volaris
12 Dec Volaris
15 Dec Volaris
22 Dec Volaris
10 Dec Copa
02 Dec Copa

Also check the deals for return flights from Ontario to Buenos Aires in December.

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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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