Cheapest return flights from London to Montreal in September from 397€

AirHint found the following cheapest return flights from London (LGW) to Montreal (YUL) in September 2026 (see full year).

Return flights

16 Sep - 16 Sep Air Transat
14 Sep - 27 Sep Air Transat
07 Sep - 18 Sep Air Transat
02 Sep - 16 Sep Air Transat
11 Sep - 25 Sep Air Transat
14 Sep - 24 Sep Air Transat
20 Sep - 28 Sep Air Transat
09 Sep - 17 Sep Air Transat
02 Sep - 09 Sep Air Transat
21 Sep - 25 Sep Air Transat
22 Sep - 02 Oct Air Transat
21 Sep - 05 Oct Air Transat
24 Sep - 02 Oct Air Transat
19 Sep - 03 Oct Air Transat direct
27 Sep - 18 Oct Air Transat
24 Sep - 01 Oct SWISS

Also check the deals for one-way flights from London to Montreal in September.

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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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