Cheapest one-way flights from Boston to Montreal in October from $134

AirHint found the following cheapest one-way flights from Boston (BOS) to Montreal (YUL) in October 2025 (see full year).

One-Way flights

25 Oct Air Canada direct
26 Oct Porter Airlines (Canada) Ltd
29 Oct Porter Airlines (Canada) Ltd
31 Oct Porter Airlines (Canada) Ltd
28 Oct Porter Airlines (Canada) Ltd
23 Oct Air Canada direct
24 Oct Air Canada direct
19 Oct Air Canada direct
20 Oct Air Canada direct
17 Oct Air Canada direct

Also check the deals for return flights from Boston to Montreal in October.

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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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