Cheapest return flights from Montreal to Buenos Aires in September from $749

Best time to book flights for Montreal (YUL) to Buenos Aires (EZE) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep Copa
03 Sep - 10 Sep Copa
24 Sep - 01 Oct Copa
05 Sep - 21 Sep Delta
01 Sep - 22 Sep Copa
22 Sep - 29 Sep Copa
29 Sep - 06 Oct Copa
08 Sep - 15 Sep Copa
01 Sep - 08 Sep Copa
02 Sep - 15 Sep Copa
18 Sep - 25 Sep Copa
14 Sep - 21 Sep Copa
27 Sep - 04 Oct Air Canada
26 Sep - 03 Oct Copa

Also check the deals for one-way flights from Montreal to Buenos Aires in September.

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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