Cheap flights from Montreal to Great Britain

View AU$429 flight on Mon, 29 Sep. 2025Opens in a new window

Popular airlines from Montreal to Great Britain

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • Delta

    Delta

  • Lufthansa

    Lufthansa

  • Brussels Airlines

    Brussels Airlines

  • United

    United

  • Air France

    Air France

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Montreal (YMQ) to Great Britain (LON)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, 14 Sep. - Tue, 23 Sep.
YUL
Montreal
LHR
London
AU$826 Return, just found
AU$826
Return
just found
Select Air Canada flight, departing Sun, 14 Sep. from Montreal to London, returning Tue, 23 Sep., priced at AU$826 just found
Air Canada
Sun, 14 Sep. - Tue, 23 Sep.
YUL
Montreal
LHR
London
AU$842 Return, just found
AU$842
Return
just found
Select Air Canada flight, departing Sun, 14 Sep. from Montreal to London, returning Tue, 23 Sep., priced at AU$842 just found
American Airlines
Sun, 7 Sep. - Sat, 13 Sep.
YUL
Montreal
LHR
London
AU$847 Return, found 5 days ago
AU$847
Return
found 5 days ago
Select American Airlines flight, departing Sun, 7 Sep. from Montreal to London, returning Sat, 13 Sep., priced at AU$847 found 5 days ago
British Airways
Fri, 21 Nov. - Thu, 27 Nov.
YUL
Montreal
LHR
London
AU$989 Return, found 15 hours ago
AU$989
Return
found 15 hours ago
Select British Airways flight, departing Fri, 21 Nov. from Montreal to London, returning Thu, 27 Nov., priced at AU$989 found 15 hours ago
Delta
Tue, 11 Nov. - Fri, 21 Nov.
YUL
Montreal
LHR
London
AU$1,017 Return, found 4 days ago
AU$1,017
Return
found 4 days ago
Select Delta flight, departing Tue, 11 Nov. from Montreal to London, returning Fri, 21 Nov., priced at AU$1,017 found 4 days ago
TAP Portugal
Sun, 14 Sep. - Tue, 23 Sep.
YUL
Montreal
LHR
London
AU$1,026 Return, just found
AU$1,026
Return
just found
Select TAP Portugal flight, departing Sun, 14 Sep. from Montreal to London, returning Tue, 23 Sep., priced at AU$1,026 just found

Find the cheapest month to fly from Montreal (YMQ) to London (LHR)

January is typically the cheapest month to fly

From AU$754 - AU$1,988 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.