AirHint found the following cheapest return flights from Toronto (YYZ) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

11 Aug - 20 Aug	LATAM Airlines Group
25 Aug - 03 Sep	LATAM Airlines Group
28 Aug - 09 Sep	LATAM Airlines Group
27 Aug - 03 Sep	Arajet
27 Aug - 09 Sep	Avianca
29 Aug - 07 Sep	LATAM Airlines Group
11 Aug - 22 Aug	LATAM Airlines Group
12 Aug - 21 Aug	LATAM Airlines Group
26 Aug - 31 Aug	LATAM Airlines Group
12 Aug - 20 Aug	LATAM Airlines Group
13 Aug - 23 Aug	LATAM Airlines Group
22 Aug - 31 Aug	Avianca
01 Aug - 25 Aug	Avianca
01 Aug - 10 Aug	Avianca
03 Aug - 10 Aug	GOL Linhas Aéreas

Also check the deals for one-way flights from Toronto to Buenos Aires in August.

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 Toronto to Buenos Aires in August from 608€

Return flights