AirHint found the following cheapest return flights from Montreal (YUL) to Buenos Aires (EZE) in March 2026 (see full year).

Return flights

05 Mar - 12 Mar	LATAM Airlines Group
13 Mar - 20 Mar	Air Canada
15 Mar - 22 Mar	Air Canada
06 Mar - 13 Mar	Air Canada
08 Mar - 15 Mar	Air Canada
10 Mar - 17 Mar	LATAM Airlines Group
14 Mar - 21 Mar	Air Canada
20 Mar - 27 Mar	Air Canada
26 Mar - 02 Apr	Air Canada
11 Mar - 18 Mar	LATAM Airlines Group
17 Mar - 24 Mar	LATAM Airlines Group
31 Mar - 07 Apr	LATAM Airlines Group
25 Mar - 01 Apr	Copa
29 Mar - 05 Apr	LATAM Airlines Group
30 Mar - 06 Apr	Copa
28 Mar - 04 Apr	Copa

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

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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Cheapest return flights from Montreal to Buenos Aires in March from $809

Return flights