Cheapest one-way flights from Montreal to London in September from $275

AirHint found the following cheapest one-way flights from Montreal (YUL) to London (LGW) in September 2025 (see full year).

One-Way flights

15 Sep Air Transat direct
24 Sep Porter Airlines (Canada) Ltd
29 Sep Air Transat direct
13 Sep Air Transat direct
10 Sep Air Transat direct
24 Sep Air Transat direct
19 Sep Air Transat direct
17 Sep Air Transat direct
08 Sep Air Transat direct
22 Sep Air Transat direct

Also check the deals for return flights from Montreal to London 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.

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