Cheapest return flights from Montreal to London in September from $729

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

Return flights

04 Sep - 20 Sep TAP
11 Sep - 20 Sep TAP
11 Sep - 19 Sep TAP
10 Sep - 17 Sep TAP
11 Sep - 26 Sep TAP
11 Sep - 19 Sep Air Transat direct
11 Sep - 20 Sep Air Transat direct
11 Sep - 26 Sep Air Transat direct

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