Cheapest return flights from Montreal to Buenos Aires in September from $825

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

Return flights

23 Sep - 30 Sep Copa
24 Sep - 01 Oct Air Canada
22 Sep - 29 Sep Delta
30 Sep - 07 Oct LATAM Airlines Group
21 Sep - 22 Sep Air Canada
25 Sep - 02 Oct Copa
21 Sep - 28 Sep Air Canada
28 Sep - 05 Oct Copa
27 Sep - 04 Oct Copa
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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