Cheapest return flights from Boston to Toronto in December from $301

AirHint found the following cheapest return flights from Boston (BOS) to Toronto (YTZ) in December 2025 (see full year).

Return flights

07 Dec - 22 Dec Porter Airlines (Canada) Ltd
29 Dec - 07 Jan Porter Airlines (Canada) Ltd
08 Dec - 22 Dec Porter Airlines (Canada) Ltd
07 Dec - 22 Dec Porter Airlines (Canada) Ltd direct
29 Dec - 07 Jan Porter Airlines (Canada) Ltd direct
08 Dec - 22 Dec Porter Airlines (Canada) Ltd direct
21 Dec - 07 Jan Porter Airlines (Canada) Ltd
21 Dec - 07 Jan Porter Airlines (Canada) Ltd direct
29 Dec - 30 Dec Porter Airlines (Canada) Ltd
21 Dec - 22 Dec Porter Airlines (Canada) Ltd
29 Dec - 30 Dec Porter Airlines (Canada) Ltd direct
21 Dec - 30 Dec Porter Airlines (Canada) Ltd
21 Dec - 22 Dec Porter Airlines (Canada) Ltd direct
21 Dec - 30 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Boston 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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