Cheapest one-way flights from Boston to Toronto in December from $109

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

One-Way flights

02 Dec Porter Airlines (Canada) Ltd direct
09 Dec Porter Airlines (Canada) Ltd direct
07 Dec Porter Airlines (Canada) Ltd direct
03 Dec Porter Airlines (Canada) Ltd
03 Dec Porter Airlines (Canada) Ltd direct
04 Dec Porter Airlines (Canada) Ltd direct
01 Dec Porter Airlines (Canada) Ltd direct
14 Dec Porter Airlines (Canada) Ltd direct
29 Dec Porter Airlines (Canada) Ltd direct
24 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for return 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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