Cheapest one-way flights from Ontario to Buenos Aires in December from $528

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

One-Way flights

31 Dec Volaris
28 Dec Volaris
30 Dec Copa
25 Dec Volaris
27 Dec LATAM Airlines Group

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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