AirHint found the following cheapest return flights from Mexico City (MEX) to Toronto (YYZ) in December 2025 (see full year).

Return flights

25 Dec - 31 Dec	Arajet
02 Dec - 07 Dec	Arajet
04 Dec - 08 Dec	Arajet
18 Dec - 25 Dec	Arajet
25 Dec - 04 Jan	Arajet
25 Dec - 03 Jan	Volaris
23 Dec - 30 Dec	Volaris
10 Dec - 16 Dec	Viva Aerobus
06 Dec - 14 Dec	Viva Aerobus
28 Dec - 05 Jan	Volaris
13 Dec - 16 Dec	Volaris
01 Dec - 01 Dec	Viva Aerobus
20 Dec - 27 Dec	Volaris
27 Dec - 05 Jan	Volaris
29 Dec - 09 Jan	WestJet
30 Dec - 04 Jan	Aeromexico
26 Dec - 03 Jan	WestJet
20 Dec - 03 Jan	WestJet
22 Dec - 04 Jan	Delta
19 Dec - 02 Jan	Aeromexico	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 $370

Return flights