AirHint found the following cheapest return flights from Toronto (YYZ) to Buenos Aires (AEP) in March 2026 (see full year).

Return flights

18 Mar - 23 Apr	Avianca
18 Mar - 23 Mar	Avianca
04 Mar - 08 Apr	Air Transat
22 Mar - 29 Mar	Avianca
07 Mar - 08 Apr	Flair Airlines
03 Mar - 14 Mar	LATAM Airlines Group
15 Mar - 29 Mar	Avianca
11 Mar - 25 Mar	Avianca
07 Mar - 09 Apr	Air Transat
27 Mar - 09 Apr	Avianca
13 Mar - 23 Mar	Avianca
09 Mar - 19 Mar	Avianca
09 Mar - 18 Mar	LATAM Airlines Group
06 Mar - 11 Mar	Arajet
09 Mar - 16 Mar	Avianca
07 Mar - 10 Apr	Air Transat
08 Mar - 08 Apr	Avianca
08 Mar - 09 Apr	Avianca
08 Mar - 10 Apr	Avianca

Also check the deals for one-way flights from Toronto 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 Toronto to Buenos Aires in March from 608€

Return flights