Cheapest return flights from Boston (BOS) to Montreal (YUL), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
14 Aug 18 Aug Porter Airlines (Canada) Ltd
11 Aug 16 Aug Porter Airlines (Canada) Ltd
Direct Flight
14 Aug 17 Aug Porter Airlines (Canada) Ltd
Direct Flight
12 Aug 16 Aug Porter Airlines (Canada) Ltd
Direct Flight
10 Aug 15 Aug Porter Airlines (Canada) Ltd
Direct Flight
05 Aug 07 Aug Porter Airlines (Canada) Ltd
07 Aug 10 Aug Porter Airlines (Canada) Ltd
Direct Flight
23 Aug 30 Aug Porter Airlines (Canada) Ltd
Direct Flight
18 Aug 29 Aug Porter Airlines (Canada) Ltd
09 Aug 13 Aug Porter Airlines (Canada) Ltd
Direct Flight
18 Aug 01 Sep Porter Airlines (Canada) Ltd
18 Aug 02 Sep Porter Airlines (Canada) Ltd
18 Aug 03 Sep Porter Airlines (Canada) Ltd
19 Aug 01 Sep Porter Airlines (Canada) Ltd
19 Aug 02 Sep Porter Airlines (Canada) Ltd
19 Aug 03 Sep Porter Airlines (Canada) Ltd
25 Aug 01 Sep Porter Airlines (Canada) Ltd
25 Aug 02 Sep Porter Airlines (Canada) Ltd
25 Aug 03 Sep Porter Airlines (Canada) Ltd
26 Aug 02 Sep Porter Airlines (Canada) Ltd
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deals for one-way flights from Boston to Montreal in August.

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Updated Jun 10, 2026.

About these fares

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