Cheapest one-way flights from Ontario to Buenos Aires in October from $552

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

One-Way flights

11 Oct Avianca
02 Oct Avianca
07 Oct Avianca
10 Oct LATAM Airlines Group
13 Oct Copa
16 Oct Copa
22 Oct Copa
25 Oct Copa
31 Oct Copa
28 Oct Copa

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