Cheapest one-way flights from Boston to Toronto in May from 85€

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

One-Way flights

13 May Porter Airlines (Canada) Ltd
01 May Porter Airlines (Canada) Ltd
02 May Porter Airlines (Canada) Ltd direct
13 May Porter Airlines (Canada) Ltd direct
01 May Porter Airlines (Canada) Ltd direct
29 May Porter Airlines (Canada) Ltd direct
17 May Porter Airlines (Canada) Ltd direct
10 May Porter Airlines (Canada) Ltd direct
07 May Porter Airlines (Canada) Ltd direct
26 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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