Cheapest return flights from Montreal to Toronto in December from $350

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

Return flights

31 Dec - 04 Jan WestJet direct
31 Dec - 06 Jan WestJet direct
31 Dec - 07 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 03 Jan WestJet direct
31 Dec - 01 Jan WestJet direct
30 Dec - 04 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 10 Jan WestJet direct
30 Dec - 09 Jan Porter Airlines (Canada) Ltd direct
31 Dec - 02 Jan WestJet direct
30 Dec - 18 Jan Porter Airlines (Canada) Ltd direct
30 Dec - 31 Dec Porter Airlines (Canada) Ltd direct
30 Dec - 30 Dec Porter Airlines (Canada) Ltd direct
31 Dec - 31 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Montreal to Toronto 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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