Cheapest one-way flights from Boston to Toronto in December from $108

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

One-Way flights

01 Dec Porter Airlines (Canada) Ltd direct
11 Dec Porter Airlines (Canada) Ltd direct
10 Dec Porter Airlines (Canada) Ltd direct
06 Dec Porter Airlines (Canada) Ltd direct
07 Dec Porter Airlines (Canada) Ltd direct
07 Dec Porter Airlines (Canada) Ltd
04 Dec Porter Airlines (Canada) Ltd direct
05 Dec Porter Airlines (Canada) Ltd direct
23 Dec Air Canada
18 Dec Air Canada

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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