Cheapest return flights from London to Montreal in September from $574

Best time to book flights for London (LGW) to Montreal (YUL) flights at AirHint

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

Return flights

10 Sep - 24 Sep Air Transat direct
24 Sep - 01 Oct Air Transat
05 Sep - 15 Sep Air Transat direct
05 Sep - 12 Sep easyJet
05 Sep - 12 Sep Air Transat direct
16 Sep - 23 Sep easyJet
02 Sep - 23 Sep easyJet

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