Cheapest return flights from Boston to Toronto in September from 266€

AirHint found the following cheapest return flights from Boston (BOS) to Toronto (YYZ) in September 2026 (see full year).

Return flights

03 Sep - 06 Sep Air Canada
03 Sep - 06 Sep Air Canada direct
04 Sep - 06 Sep Air Canada
13 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
11 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
14 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
03 Sep - 11 Sep Porter Airlines (Canada) Ltd direct
04 Sep - 11 Sep Porter Airlines (Canada) Ltd direct
04 Sep - 06 Sep Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Boston to Toronto in September.

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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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