Cheapest return flights from Toronto to Buenos Aires in December from $999

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

Return flights

05 Dec - 21 Dec LATAM Airlines Group
18 Dec - 05 Jan WestJet
14 Dec - 12 Jan Avianca
26 Dec - 02 Jan Avianca
12 Dec - 04 Jan Avianca
11 Dec - 04 Jan Avianca
12 Dec - 05 Jan Avianca
16 Dec - 13 Jan LATAM Airlines Group
25 Dec - 08 Jan LATAM Airlines Group
16 Dec - 12 Jan LATAM Airlines Group
21 Dec - 30 Dec LATAM Airlines Group
19 Dec - 27 Dec LATAM Airlines Group
19 Dec - 06 Jan Avianca

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

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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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