Cheapest return flights from Boston to Toronto in May from 260€

Best time to book flights for Boston (BOS) to Toronto (YYZ) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Toronto (YYZ) in May 2025 (see full year).

Return flights

04 May - 06 May Air Canada direct
10 May - 14 May Air Canada direct
26 May - 29 May Porter Airlines (Canada) Ltd
22 May - 26 May United direct
24 May - 26 May United direct
28 May - 04 Jun United direct
14 May - 18 May United direct
26 May - 29 May Air Canada direct
21 May - 25 May United direct
12 May - 19 May United direct
20 May - 02 Jun Air Canada direct
23 May - 27 May Air Canada direct

Also check the deals for one-way 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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