Cheapest one-way flights from Montreal (YUL) to Boston (BOS), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
01 Sep Porter Airlines (Canada) Ltd
03 Sep Porter Airlines (Canada) Ltd
Direct Flight
23 Sep Porter Airlines (Canada) Ltd
30 Sep Porter Airlines (Canada) Ltd
17 Sep Porter Airlines (Canada) Ltd
17 Sep Air Canada
Direct Flight
23 Sep Air Canada
Direct Flight
30 Sep Air Canada
Direct Flight
08 Sep Porter Airlines (Canada) Ltd
Direct Flight
12 Sep Porter Airlines (Canada) Ltd
Powered by

deals for return flights from Montreal to Boston in September.

Book a cheap hotel in Boston

Cheap car rent in General Edward Lawrence Logan Intl

Updated Jul 12, 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.

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