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

Return flights

11 Jul - 04 Aug	LATAM Airlines Group
15 Jul - 29 Jul	Arajet
23 Jul - 30 Jul	LATAM Airlines Group
15 Jul - 22 Jul	Copa
10 Jul - 17 Jul	Copa
23 Jul - 08 Aug	Delta
11 Jul - 23 Jul	Air Canada
15 Jul - 24 Jul	Air Canada
06 Jul - 13 Jul	Copa
16 Jul - 23 Jul	LATAM Airlines Group
09 Jul - 16 Jul	LATAM Airlines Group
07 Jul - 14 Jul	LATAM Airlines Group
25 Jul - 01 Aug	Arajet
29 Jul - 05 Aug	Arajet
31 Jul - 07 Aug	Air Canada
28 Jul - 04 Aug	Porter Airlines (Canada) Ltd
27 Jul - 03 Aug	GOL Linhas Aéreas
26 Jul - 02 Aug	Porter Airlines (Canada) Ltd

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

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 July from 683€

Return flights