Cheapest one-way flights from Boston to Toronto in January from $99

AirHint found the following cheapest one-way flights from Boston (BOS) to Toronto (YYZ) in January 2026 (see full year).

One-Way flights

28 Jan Frontier Airlines
26 Jan Porter Airlines (Canada) Ltd
09 Jan Porter Airlines (Canada) Ltd
07 Jan Porter Airlines (Canada) Ltd
11 Jan Porter Airlines (Canada) Ltd
03 Jan Porter Airlines (Canada) Ltd
02 Jan Porter Airlines (Canada) Ltd
16 Jan Porter Airlines (Canada) Ltd
19 Jan Porter Airlines (Canada) Ltd
20 Jan Porter Airlines (Canada) Ltd

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

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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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