Cheapest return flights from Montreal to London in December from $562

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

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

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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