Cheapest one-way flights from Boston to Toronto in March from $106

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

One-Way flights

11 Mar Spirit Airlines
16 Mar Porter Airlines (Canada) Ltd
18 Mar Porter Airlines (Canada) Ltd
10 Mar Spirit Airlines
20 Mar Porter Airlines (Canada) Ltd
27 Mar Porter Airlines (Canada) Ltd
29 Mar Porter Airlines (Canada) Ltd
05 Mar Porter Airlines (Canada) Ltd
07 Mar Porter Airlines (Canada) Ltd
31 Mar Porter Airlines (Canada) Ltd

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

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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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