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Cheap flights from Montreal to the United Kingdom from C$ 411

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LHR
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to United Kingdom

Keep the following information in mind while searching for Montreal to United Kingdom flight deals. Data was last updated 30 October 2025.

Round-trip from

C$ 771

One-way from

C$ 411

Popular in

December

Cheapest in

May

Average price

C$ 876

Good round-trip deal

C$ 758 or less

Good one-way deal

C$ 410 or less
Porter Airlines
  • Porter Airlines
  • 24/11-9/12
  • 2 total stops
  • 29h 55m total
  • Montreal to United Kingdom
Search Deals
16/11
  • 16/11
  • 1 total stop
  • 11h 45m total
  • Montreal to United Kingdom
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to United Kingdom.
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to United Kingdom.
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Find flight deals from Montreal to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to United Kingdom
Explore the most affordable flight options available from Montreal to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Thu 13/119:30 p.m.YUL - LTN
1 stop12h 20mMultiple Airlines
Wed 19/117:00 a.m.LTN - YUL
1 stop13h 45mMultiple Airlines
Deal found 28/10C$ 769
Wed 3/129:45 p.m.YUL - STN
1 stop12h 55mMultiple Airlines
Fri 12/126:50 a.m.STN - YUL
1 stop18h 25mMultiple Airlines
Deal found 28/10C$ 771
Mon 24/1110:35 a.m.YUL - LGW
1 stop18h 10mPorter Airlines
Wed 26/1111:40 a.m.LGW - YUL
1 stop15h 40mPorter Airlines
Deal found 30/10C$ 771
Thu 13/114:45 p.m.YUL - SEN
2 stops15h 05mMultiple Airlines
Wed 19/117:10 a.m.SEN - YUL
2 stops16h 10mMultiple Airlines
Deal found 28/10C$ 781
Sun 23/119:45 p.m.YUL - LGW
2 stops17h 50mTAP AIR PORTUGAL
Wed 3/1210:40 a.m.LGW - YUL
1 stop14h 35mTAP AIR PORTUGAL
Deal found 29/10C$ 781
Mon 24/115:25 p.m.YUL - LGW
1 stop11h 20mPorter Airlines
Mon 8/1211:40 a.m.LGW - YUL
1 stop15h 45mPorter Airlines
Deal found 30/10C$ 782
Thu 13/111:15 p.m.YUL - LHR
1 stop26h 20mAir Canada
Wed 19/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 29/10C$ 783
Wed 26/119:45 p.m.YUL - STN
1 stop15h 25mMultiple Airlines
Wed 3/126:30 a.m.STN - YUL
1 stop18h 45mMultiple Airlines
Deal found 30/10C$ 786
Thu 27/111:15 p.m.YUL - LHR
1 stop26h 20mMultiple Airlines
Tue 2/126:40 p.m.LHR - YUL
1 stop25h 30mMultiple Airlines
Deal found 30/10C$ 786
Wed 19/112:30 p.m.YUL - LGW
1 stop14h 15mPorter Airlines
Mon 24/1111:40 a.m.LGW - YUL
1 stop15h 40mPorter Airlines
Deal found 29/10C$ 788
Tue 25/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Mon 1/129:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 30/10C$ 788
Mon 1/126:45 a.m.YUL - LGW
1 stop22h 00mPorter Airlines
Wed 3/1211:40 a.m.LGW - YUL
1 stop11h 45mPorter Airlines
Deal found 28/10C$ 789

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 October 2025.
Use the filters below to find and compare flights from Montreal to the United Kingdom that are best for you.

Fly from

Montreal

Fly to

United Kingdom

Route

Depart

Return

Price

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

8:15 p.m.-1:40 p.m.

1 stop12h 25m

London Luton

Wed 3/12

3:05 p.m.-12:15 p.m.

1 stop26h 10m

C$ 769

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

10:35 a.m.-9:45 a.m.

1 stop18h 10m

London Gatwick

Tue 9/12

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 771

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 30/1

9:40 p.m.-7:25 p.m.

1 stop16h 45m

London Gatwick

Sun 15/3

8:30 a.m.-8:40 p.m.

1 stop16h 10m

C$ 779

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 7/12

9:45 p.m.-5:30 p.m.

1 stop14h 45m

London Heathrow

Sun 14/12

6:30 p.m.-8:15 p.m.

1 stop30h 45m

C$ 786

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

2:30 p.m.-9:45 a.m.

1 stop14h 15m

London Gatwick

Mon 24/11

11:40 a.m.-10:20 p.m.

1 stop15h 40m

C$ 788

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

6:45 a.m.-9:45 a.m.

1 stop22h 00m

London Gatwick

Wed 3/12

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 789

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

8:15 p.m.-9:50 p.m.

1 stop20h 35m

London Luton

Fri 12/12

2:00 p.m.-12:15 p.m.

1 stop27h 15m

C$ 790

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

10:15 a.m.-9:45 a.m.

1 stop18h 30m

London Gatwick

Tue 10/3

11:40 a.m.-4:55 p.m.

1 stop33h 15m

C$ 790

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 11/1

2:30 p.m.-9:45 a.m.

1 stop14h 15m

London Gatwick

Wed 14/1

11:40 a.m.-8:55 p.m.

1 stop14h 15m

C$ 797

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

3:55 p.m.-9:45 a.m.

1 stop12h 50m

London Gatwick

Wed 14/1

11:40 a.m.-8:55 p.m.

1 stop14h 15m

C$ 797

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 60 results
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Best time to book a flight from Montreal to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal to the United Kingdom

What is the cheapest month to book a flight from Montreal to United Kingdom?

Currently, December is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 131). Flying from Montreal to United Kingdom in August is currently the most expensive (average of C$ 829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to GB?

Find hourly flight availability from Montreal to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 16% on flights from Montreal to United Kingdom by exploring options for tickets in the morning.

What is the cheapest day to fly from Montreal to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Montreal to United Kingdom. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to United Kingdom flight should consider departing on Sunday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 30 October 2025.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAir Canada from Montreal to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.8
Good
469 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,381 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Lufthansa
6.8
Okay
7,541 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
British Airways
6.7
Okay
7,487 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from Montreal to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal to United Kingdom?

    A quick flight from Montreal to United Kingdom can take about 7h. Porter Airlines provides one of the quickest options available for as low as C$ 828. The distance from Montreal to United Kingdom is about 5213 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Montreal to United Kingdom?

    The most popular flight routes from Montreal to United Kingdom are Montreal Pierre Elliott Trudeau Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Gatwick and Montreal Pierre Elliott Trudeau Intl - London City.

  • What are the most reliable airlines from Montreal to United Kingdom?

    Consider Aegean Airlines (77%), Thai Airways (77%) or Air Canada (72%) when booking your flight. These represent the most reliable airlines when flying from Montreal to United Kingdom.

  • What are the cheapest flights from Montreal to United Kingdom?

    On average you can expect to pay C$ 2,194 for a flight from Montreal to United Kingdom. The cheapest flight overall is C$ 434 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at C$ 656.

  • Can I find deals for flights from Montreal to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Montreal to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to United Kingdom.

  • Can I find deals for business class flights from Montreal to United Kingdom?

    Yes. Cheapflights offers flight deals from Montreal to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to United Kingdom?

    Currently, December is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 131). Flying from Montreal to United Kingdom in August is currently the most expensive (average of C$ 829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Montreal to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Montreal to United Kingdom

Discover the top 10 airlines that operate flights from Montreal to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 616AverageC$ 1,244FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 638AverageC$ 720FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 639AverageC$ 1,069FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 704AverageC$ 1,075FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 719AverageC$ 1,183FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 766AverageC$ 1,005FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapestC$ 768AverageC$ 1,169FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 800AverageC$ 1,097FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 801AverageC$ 1,219FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapestC$ 825AverageC$ 1,328FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to United Kingdom?

Cheapflights makes it easy to find Montreal to United Kingdom flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Montreal to United Kingdom?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to United Kingdom.

Can Cheapflights find flights from Montreal to United Kingdom with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Montreal to United Kingdom, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Montreal to United Kingdom become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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