Cheapest return flights from Montreal to Buenos Aires in April from 647€

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

Return flights

26 Apr - 11 May Avianca
08 Apr - 21 Apr Arajet
30 Apr - 08 May LATAM Airlines Group
09 Apr - 19 Apr WestJet
24 Apr - 01 May Avianca
29 Apr - 06 May Avianca
10 Apr - 14 Apr Arajet
09 Apr - 12 Apr Air Transat
04 Apr - 12 Apr Copa
03 Apr - 18 Apr Arajet
18 Apr - 25 Apr WestJet
04 Apr - 18 Apr Copa
12 Apr - 19 Apr Avianca
08 Apr - 15 Apr Avianca
26 Apr - 03 May Avianca
27 Apr - 04 May Avianca

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

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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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