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

Return flights

14 Apr - 21 Apr	United
13 Apr - 20 Apr	United
15 Apr - 22 Apr	United
28 Apr - 05 May	United
27 Apr - 04 May	United
29 Apr - 06 May	United
08 Apr - 15 Apr	Air Canada
22 Apr - 29 Apr	Air Canada
01 Apr - 08 Apr	Air Canada
06 Apr - 13 Apr	LATAM Airlines Group
12 Apr - 19 Apr	LATAM Airlines Group
20 Apr - 27 Apr	LATAM Airlines Group
07 Apr - 14 Apr	LATAM Airlines Group
26 Apr - 03 May	LATAM Airlines Group
30 Apr - 07 May	LATAM Airlines Group
25 Apr - 02 May	LATAM Airlines Group
24 Apr - 01 May	LATAM Airlines Group

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

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 April from $776

Return flights