AirHint found the following cheapest return flights from Mexico City (MEX) to Toronto (YYZ) in December 2026 (see full year).

Return flights

09 Dec - 23 Dec	Aeromexico
02 Dec - 14 Dec	Aeromexico
08 Dec - 13 Dec	Aeromexico
17 Dec - 22 Dec	Aeromexico
16 Dec - 22 Dec	Aeromexico
20 Dec - 29 Dec	United
18 Dec - 22 Dec	Delta
24 Dec - 31 Dec	Avianca
22 Dec - 29 Dec	Avianca
22 Dec - 02 Jan	Avianca
22 Dec - 05 Jan	Avianca
17 Dec - 21 Dec	Aeromexico
17 Dec - 04 Jan	Avianca
18 Dec - 04 Jan	Avianca
18 Dec - 02 Jan	Avianca
29 Dec - 04 Jan	Avianca
27 Dec - 03 Jan	Avianca
29 Dec - 04 Jan	Air Canada	direct

Also check the deals for one-way flights from Mexico City to Toronto in December.

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 Mexico City to Toronto in December from 539€

Return flights