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Cheap Flights from Montreal to London

Explore the cheapest flights from Montreal to London in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at S$ 375, and round-trip direct tickets start at S$ 684.

      • Cheapest nonstop
        YUL 22:05
        6h 45m
        Direct
        LGW 09:50
        Montreal - London | Fri, Sep 11 | Air Transat
        LGW 11:35
        7h 40m
        Direct
        YUL 14:15
        London - Montreal | Sun, Sep 13 | Air Transat
        S$ 684 S$ 1,085
        37% off
        37% off
        S$ 1,085 S$ 684
      • YUL 22:05
        6h 45m
        Direct
        LGW 09:50
        Montreal - London | Wed, Aug 26 | Air Transat
        LGW 11:35
        7h 40m
        Direct
        YUL 14:15
        London - Montreal | Fri, Aug 28 | Air Transat
        S$ 792 S$ 1,085
        27% off
        27% off
        S$ 1,085 S$ 792
      • YUL 06:45
        23h
        1 stop
        LGW 10:45
        Montreal - London | Mon, Sep 7 | Air Transat
        LGW 12:40
        16h 57m
        1 stop
        YUL 00:37
        London - Montreal | Sat, Sep 12 | Air Transat
        S$ 663 S$ 1,085
        39% off
        39% off
        S$ 1,085 S$ 663
      • YUL 20:30
        10h 20m
        1 stop
        LHR 11:50
        Montreal - London | Fri, Sep 11 | Lufthansa
        LHR 11:05
        28h 35m
        1 stop
        YUL 10:40
        London - Montreal | Sun, Sep 13 | Brussels Airlines
        S$ 680
        37% off
        S$ 1,085 S$ 680
      • YUL 20:35
        30h 20m
        1 stop
        LGW 07:55
        Montreal - London | Wed, Sep 2 | Air Transat
        LGW 13:05
        7h 40m
        Direct
        YUL 15:45
        London - Montreal | Sun, Sep 6 | Air Transat
        S$ 703
        35% off
        S$ 1,085 S$ 703
      • YUL 18:25
        22h 10m
        1 stop
        LHR 21:35
        Montreal - London | Fri, Sep 11 | Brussels Airlines
        LGW 18:35
        25h 25m
        1 stop
        YUL 15:00
        London - Montreal | Sun, Sep 13 | Swiss Airlines
        S$ 715
        34% off
        S$ 1,085 S$ 715
      • YUL 16:15
        10h 40m
        1 stop
        LGW 07:55
        Montreal - London | Thu, Sep 3 | Air Transat
        LGW 11:35
        7h 40m
        Direct
        YUL 14:15
        London - Montreal | Sat, Sep 5 | Air Transat
        S$ 745
        31% off
        S$ 1,085 S$ 745
      • YUL 20:35
        30h 20m
        1 stop
        LGW 07:55
        Montreal - London | Tue, Sep 1 | Porter Airlines
        LGW 09:40
        12h 22m
        1 stop
        YUL 17:02
        London - Montreal | Mon, Sep 7 | Porter Airlines
        S$ 770
        28% off
        S$ 1,085 S$ 770
      • YUL 16:30
        23h 30m
        1 stop
        LHR 21:00
        Montreal - London | Tue, Sep 1 | Air Canada
        LHR 06:00
        14h
        1 stop
        YUL 15:00
        London - Montreal | Mon, Sep 7 | Swiss Airlines
        S$ 782
        28% off
        S$ 1,085 S$ 782
      • YUL 21:00
        11h 45m
        1 stop
        LHR 13:45
        Montreal - London | Wed, Aug 12 | Delta Air Lines
        LCY 07:45
        14h 10m
        1 stop
        YUL 16:55
        London - Montreal | Wed, Aug 19 | Delta Air Lines
        S$ 790
        27% off
        S$ 1,085 S$ 790
      • YMQ 13:00
        17h 25m
        1 stop
        LON 14:00
        Montreal - London | Wed, Jul 15 | Normal Airline
        LON 15:00
        6h
        Direct
        YMQ 16:00
        London - Montreal | Fri, Jul 17 | Normal Airline
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      • Cheapest nonstop
        YUL 22:05
        6h 45m
        Direct
        LGW 09:50
        Montreal - London | Wed, Jul 22 | Air Transat
        S$ 375 S$ 521
        28% off
        28% off
        S$ 521 S$ 375
      • YUL 22:05
        6h 45m
        Direct
        LGW 09:50
        Montreal - London | Tue, Jul 21 | Air Transat
        S$ 376 S$ 521
        28% off
        28% off
        S$ 521 S$ 376
      • YUL 19:00
        23h 5m
        1 stop
        STN 23:05
        Montreal - London | Tue, Aug 4 | Air Transat
        S$ 353 S$ 521
        32% off
        32% off
        S$ 521 S$ 353
      • YUL 19:00
        12h 55m
        1 stop
        LTN 12:55
        Montreal - London | Wed, Sep 9 | Air Transat
        S$ 356
        32% off
        S$ 521 S$ 356
      • YUL 16:15
        10h 40m
        1 stop
        LGW 07:55
        Montreal - London | Mon, Jul 20 | Air Transat
        S$ 375
        28% off
        S$ 521 S$ 375
      • YUL 16:15
        10h 40m
        1 stop
        LGW 07:55
        Montreal - London | Wed, Jul 29 | Air Transat
        S$ 375
        28% off
        S$ 521 S$ 375
      • YUL 16:15
        10h 40m
        1 stop
        LGW 07:55
        Montreal - London | Thu, Jul 16 | Air Transat
        S$ 375
        28% off
        S$ 521 S$ 375
      • YUL 16:15
        10h 40m
        1 stop
        LGW 07:55
        Montreal - London | Sat, Jul 18 | Air Transat
        S$ 375
        28% off
        S$ 521 S$ 375
      • YHU 15:55
        12h 30m
        1 stop
        LGW 09:25
        Montreal - London | Wed, Aug 5 | Porter Airlines
        S$ 378
        27% off
        S$ 521 S$ 378
      • YHU 15:50
        12h 35m
        1 stop
        LGW 09:25
        Montreal - London | Sat, Jul 25 | Porter Airlines
        S$ 380
        27% off
        S$ 521 S$ 380
      • YMQ 13:00
        17h 25m
        1 stop
        LON 14:00
        Montreal - London | Wed, Jul 15 | Normal Airline
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Popular airlines from Montreal to London

You can choose from 2 airlines that fly from Montreal to London, including Air Transat, Air Canada, Air Transat offers the lowest prices on this route.
Air Transat logo Air Transat
Air Canada logo Air Canada
Airlines are determined based on actual purchased flight tickets from Montreal to London according to previous 12 months data from Trip.com.

Flying from Montreal to London

The distance between Montreal and London is approximately 5,220.3km. It takes around 6 hours 47 minutes on average to fly from Montreal to London. Based on Trip.com's data, travel demand peaks in January. The off-season for travel is October.

Cheapest one-way flight priceS$ 353
Cheapest return ticket priceS$ 663
Off-season for travelOctober
Peak season for travelJanuary
Flight distance5,220.3km
Average flight time6 hours 47 minutes
Popular airlineAir Transat
Flight statistics for the Montreal–London route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Montreal to London.

What is the cheapest month for one-way flights from Montreal to London?

The average price of one-way flights from Montreal to London purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Montreal to London is July, with an average price of S$ 452, and the most expensive month is December, with an average price of up to S$ 883.

S$ 883
S$ 668
S$ 452
S$ 237
  • S$ 452
    Jul
  • S$ 691
    Aug
  • S$ 457
    Sep
  • S$ 593
    Oct
  • S$ 876
    Nov
  • S$ 883
    Dec
  • S$ 690
    Jan
  • S$ 817
    Feb
  • S$ 766
    Mar
  • S$ 773
    Apr
  • S$ 587
    May
  • S$ 584
    Jun

What is the cheapest month for round-trip flights from Montreal to London?

The average price of round-trip flights from Montreal to London purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for round-trip flights from Montreal to London is September, with an average price of S$ 754, and the most expensive month is December, with an average price of up to S$ 1,561.

S$ 1,561
S$ 1,158
S$ 754
S$ 351
    Cheapest
  • S$ 1,151
    Jul
  • S$ 1,134
    Aug
  • S$ 754
    Sep
  • S$ 1,114
    Oct
  • S$ 1,291
    Nov
  • S$ 1,561
    Dec
  • S$ 1,104
    Jan
  • S$ 957
    Feb
  • S$ 1,019
    Mar
  • S$ 1,303
    Apr
  • S$ 925
    May
  • S$ 882
    Jun

What is the cheapest day to fly from Montreal to London during National Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way airfares from Montreal to London during National Day.

National Day is scheduled on Aug 9. The flights from Montreal to London are cheapest on Aug 6, with the lowest fare of S$ 409.

S$ 684
S$ 547
S$ 409
S$ 272
  • S$ 684
    5
    Aug
  • S$ 409
    6
  • S$ 524
    7
  • S$ 663
    8
  • S$ 493
    9
  • S$ 482
    10
  • S$ 546
    11

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Montreal (YMQ) to London (LON)?

    Based on Trip.com data, Air Transat offers one-way fares as low as S$ 353 on Cheapest nonstop routes (e.g. YUL to STN on Tue, Aug 4), while Air Transat offers Cheapest nonstop round-trips from S$ 663 departing on Mon, Sep 7 and returning on Sat, Sep 12.
  • At the moment, you can catch a direct flight from Montreal to London with the following airlines, including: Air Transat Air Canada Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 6 hours 47 minutes to fly from Montreal (YMQ) to London (LON).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Montreal to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 23 flight per week flying from Montreal to London. You can check the weekly schedule for popular airlines on this route below: Air Transat: S/M/T/W/T/F/S -- TS728 (22:19)
  • To find best deals on flights from Montreal to London, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Aug 4, with one-way flights priced at just S$ 353.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Transat.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for London travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Montreal to London is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Montreal to London on July 23, 2026 with Air Transat, with prices starting at S$ 694.
  • You can land at any one of the following hubs in London, with Montréal-Pierre Elliott Trudeau International Airport to London Gatwick Airport (YUL-LGW) is by far the most common option on this route: Heathrow Airport (LHR) London Gatwick Airport (LGW) London Luton Airport (LTN) London City Airport (LCY) London Southend Airport (SEN) London Stansted Airport (STN).
  • The time difference between London and Montreal is 5h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Find Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.