Cheapest one-way flights from Boston to Toronto in April from $80

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

One-Way flights

01 Apr Spirit Airlines
22 Apr Spirit Airlines
07 Apr Spirit Airlines
20 Apr Porter Airlines (Canada) Ltd
19 Apr Porter Airlines (Canada) Ltd
14 Apr Porter Airlines (Canada) Ltd
06 Apr Porter Airlines (Canada) Ltd
03 Apr Porter Airlines (Canada) Ltd
05 Apr Porter Airlines (Canada) Ltd
10 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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