Cheapest one-way flights from Boston to Toronto in December from $89

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

One-Way flights

04 Dec Porter Airlines (Canada) Ltd
04 Dec Porter Airlines (Canada) Ltd direct
07 Dec Porter Airlines (Canada) Ltd direct
05 Dec Porter Airlines (Canada) Ltd direct
08 Dec Porter Airlines (Canada) Ltd direct
21 Dec Porter Airlines (Canada) Ltd
31 Dec Porter Airlines (Canada) Ltd
21 Dec Porter Airlines (Canada) Ltd direct
31 Dec Porter Airlines (Canada) Ltd direct

Also check the deals for return flights from Boston to Toronto in December.

Skyscanner

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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