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Results refresh when you open or revisit this page. Last snapshot: Jul 10, 2026.

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Cheapest one-way flights from Boston (BOS) to Toronto (YTZ), September

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Dates, airline, and price
Dates	Airline	Price
02 Sep	Porter Airlines (Canada) Ltd
06 Sep	Porter Airlines (Canada) Ltd Direct Flight
02 Sep	Porter Airlines (Canada) Ltd Direct Flight
15 Sep	Porter Airlines (Canada) Ltd Direct Flight
12 Sep	Porter Airlines (Canada) Ltd Direct Flight
21 Sep	Porter Airlines (Canada) Ltd Direct Flight
03 Sep	Porter Airlines (Canada) Ltd Direct Flight
05 Sep	Porter Airlines (Canada) Ltd Direct Flight
28 Sep	Porter Airlines (Canada) Ltd Direct Flight
27 Sep	Porter Airlines (Canada) Ltd Direct Flight

deals for return flights from Boston to Toronto in September.

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Updated Jul 10, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Boston (BOS) to Toronto (YTZ), September

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