Cheapest one-way flights from Montreal to London in December from $270

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

One-Way flights

07 Dec FrenchBee
01 Dec TAP
08 Dec TAP
06 Dec Air Transat
12 Dec Porter Airlines (Canada) Ltd
30 Dec FrenchBee
14 Dec Porter Airlines (Canada) Ltd
15 Dec Porter Airlines (Canada) Ltd
29 Dec Porter Airlines (Canada) Ltd
31 Dec FrenchBee

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

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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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