Cheapest return flights from Montreal to London in December from $474

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

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

Return flights

01 Dec - 08 Dec TAP
03 Dec - 10 Dec TAP
07 Dec - 14 Dec TAP
05 Dec - 12 Dec TAP
02 Dec - 09 Dec Air France
04 Dec - 11 Dec Air France
06 Dec - 13 Dec Air France
08 Dec - 15 Dec TAP
10 Dec - 17 Dec TAP
09 Dec - 16 Dec Air Canada
31 Dec - 07 Jan Air Canada
29 Dec - 05 Jan Air Canada
29 Dec - 05 Jan Lufthansa direct
30 Dec - 06 Jan Lufthansa direct
24 Dec - 01 Jan Lufthansa
21 Dec - 31 Jan British Airways direct
21 Dec - 31 Jan Air Canada
25 Dec - 01 Jan Lufthansa
24 Dec - 02 Jan Air Canada
24 Dec - 03 Jan Air Canada

Also check the deals for one-way 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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