Cheapest return flights from Montreal to London in September from 411€

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

Return flights

08 Sep - 22 Oct Air Transat
18 Sep - 26 Sep Air Transat direct
03 Sep - 10 Sep Air Transat
04 Sep - 08 Sep Air Transat
18 Sep - 28 Sep Air Transat
11 Sep - 15 Sep Air Transat
18 Sep - 11 Oct Air Transat
04 Sep - 11 Sep Air Transat
26 Sep - 09 Oct Air Transat
26 Sep - 10 Oct Air Transat
21 Sep - 27 Sep Air Transat
05 Sep - 14 Sep Air Transat
26 Sep - 06 Oct Air Transat
10 Sep - 19 Sep Air Transat direct
01 Sep - 07 Sep Air Transat
24 Sep - 09 Oct Air Transat direct
19 Sep - 10 Oct Air Transat direct
24 Sep - 05 Oct Air Transat direct
18 Sep - 10 Oct Air Transat direct
27 Sep - 10 Oct Air Transat direct

Also check the deals for one-way 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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