Cheapest one-way flights from Boston to Toronto in May from 147€

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

One-Way flights

01 May Porter Airlines (Canada) Ltd direct
24 May Porter Airlines (Canada) Ltd direct
10 May Air Canada
10 May Porter Airlines (Canada) Ltd direct
09 May Porter Airlines (Canada) Ltd direct
05 May Porter Airlines (Canada) Ltd direct

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

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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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