Cheapest return flights from Toronto to Boston in September from $207

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

Return flights

16 Sep - 20 Sep Porter Airlines (Canada) Ltd
15 Sep - 21 Sep Porter Airlines (Canada) Ltd direct
05 Sep - 08 Sep Porter Airlines (Canada) Ltd
22 Sep - 25 Sep Porter Airlines (Canada) Ltd
26 Sep - 29 Sep Porter Airlines (Canada) Ltd
06 Sep - 10 Sep Porter Airlines (Canada) Ltd
26 Sep - 30 Sep Porter Airlines (Canada) Ltd
19 Sep - 22 Sep Porter Airlines (Canada) Ltd
11 Sep - 15 Sep Porter Airlines (Canada) Ltd direct
19 Sep - 21 Sep Porter Airlines (Canada) Ltd direct
16 Sep - 05 Oct Porter Airlines (Canada) Ltd direct
23 Sep - 05 Oct Porter Airlines (Canada) Ltd direct
23 Sep - 12 Oct Porter Airlines (Canada) Ltd direct
23 Sep - 14 Oct Porter Airlines (Canada) Ltd direct
17 Sep - 05 Oct Porter Airlines (Canada) Ltd direct
27 Sep - 05 Oct Porter Airlines (Canada) Ltd direct
27 Sep - 12 Oct Porter Airlines (Canada) Ltd direct
27 Sep - 14 Oct Porter Airlines (Canada) Ltd direct
22 Sep - 05 Oct Porter Airlines (Canada) Ltd direct
22 Sep - 12 Oct Porter Airlines (Canada) Ltd direct

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

Skyscanner

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.

Book a cheap hotel in Boston

Cheap car rent in Boston

Feel free to contact us with any feedback or request another flight research.