Cheapest one-way flights from Boston to Toronto in April from $171

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

One-Way flights

23 Apr Porter Airlines (Canada) Ltd
13 Apr Porter Airlines (Canada) Ltd
16 Apr Porter Airlines (Canada) Ltd
25 Apr Porter Airlines (Canada) Ltd
02 Apr Frontier Airlines
22 Apr Delta
21 Apr Delta
24 Apr Porter Airlines (Canada) Ltd
12 Apr Porter Airlines (Canada) Ltd
17 Apr Porter Airlines (Canada) Ltd

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

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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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