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

Return flights

18 Mar - 25 Mar	Avianca
11 Mar - 18 Mar	Avianca
05 Mar - 26 Mar	WestJet
09 Mar - 16 Mar	Avianca
15 Mar - 22 Mar	Avianca
24 Mar - 31 Mar	LATAM Airlines Group
16 Mar - 23 Mar	Avianca
12 Mar - 19 Mar	Copa
06 Mar - 13 Mar	Air Canada
13 Mar - 20 Mar	Air Canada
17 Mar - 02 Apr	Air Canada
17 Mar - 04 Apr	Air Canada
17 Mar - 08 Apr	Air Canada
07 Mar - 09 Apr	Air Canada
26 Mar - 02 Apr	Air Canada
20 Mar - 06 Apr	Air Canada
15 Mar - 06 Apr	Air Canada
17 Mar - 06 Apr	Air Canada
17 Mar - 01 Apr	Air Canada
18 Mar - 07 Apr	Arajet

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 616€

Return flights