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Cheap flights from Montreal to the United Kingdom from C$ 347

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LHR
19 Aug — 26 Aug1
1 adult

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 14 August 2025.

Round-trip from

C$ 735

One-way from

C$ 347

Popular in

December

Cheapest in

May

Average price

C$ 1,046

Good round-trip deal

C$ 762 or less

Good one-way deal

C$ 307 or less
Air Transat
  • Air Transat
  • 20/9-25/9
  • Nonstop
  • 14h 25m total
  • Montreal to United Kingdom
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Air Transat
  • Air Transat
  • 4/10
  • 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$ 103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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

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 14 August 2025.

Sat 20/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Thu 25/911:35 a.m.LGW - YUL
Nonstop7h 40mAir Transat
Deal found 12/8C$ 735
Wed 24/96:55 p.m.YUL - LHR
Nonstop6h 35mMultiple Airlines
Tue 30/97:30 p.m.LHR - YUL
1 stop23h 20mMultiple Airlines
Deal found 12/8C$ 735
Mon 15/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 27mAir Transat
Deal found 12/8C$ 736
Sun 14/96:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Sun 28/96:00 a.m.LHR - YUL
1 stop12h 50mAir Canada
Deal found 12/8C$ 736
Sun 14/94:00 p.m.YUL - LGW
1 stop13h 45mAir Transat
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 40mAir Transat
Deal found 12/8C$ 738
Sun 14/96:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Tue 23/93:50 p.m.LHR - YUL
1 stop10h 50mAir Canada
Deal found 12/8C$ 738
Mon 15/910:00 a.m.YUL - LGW
1 stop19h 45mMultiple Airlines
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 40mMultiple Airlines
Deal found 12/8C$ 739
Fri 17/103:30 p.m.YUL - LHR
1 stop10h 05mAir Canada
Wed 12/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 12/8C$ 739
Sat 27/96:00 p.m.YUL - LGW
1 stop11h 45mAir Transat
Sun 5/1011:35 a.m.LGW - YUL
Nonstop7h 40mAir Transat
Deal found 13/8C$ 740
Wed 1/106:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Sun 12/106:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Deal found 12/8C$ 740
Sat 20/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Fri 3/1012:40 p.m.LGW - YUL
1 stop11h 40mAir Transat
Deal found 12/8C$ 742
Wed 1/109:55 p.m.YUL - LHR
Nonstop6h 40mAir Canada
Sun 5/106:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Deal found 12/8C$ 742

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 14 August 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 - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 19/10

6:45 a.m.-10:45 a.m.

1 stop23h 00m

London Gatwick

Wed 29/10

11:40 a.m.-12:35 a.m.

1 stop16h 55m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 29/9

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Mon 6/10

6:00 a.m.-1:50 p.m.

1 stop12h 50m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 17/10

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Sun 26/10

7:40 a.m.-7:20 p.m.

1 stop15h 40m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 14/9

6:55 p.m.-6:30 a.m.

Nonstop6h 35m

London Heathrow

Thu 2/10

6:00 a.m.-1:50 p.m.

1 stop12h 50m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Wed 29/10

11:10 a.m.-7:20 p.m.

1 stop12h 10m

C$ 735

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 19/9

4:00 p.m.-7:55 a.m.

1 stop10h 55m

London Gatwick

Thu 25/9

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 736

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Mon 20/10

12:40 p.m.-9:17 p.m.

1 stop13h 37m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Wed 1/10

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Fri 3/10

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Fri 3/10

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 742

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

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, January is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 560). Flying from Montreal to United Kingdom in July is currently the most expensive (average of C$ 856). 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 14 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal to United Kingdom as you normally would.

Weekly flight availability from Montreal to United Kingdom

Explore weekly flight availability from Montreal to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 August 2025.

The most flights from YMQ to GB0 are scheduled on a Wednesday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

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 14 August 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
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
427 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,949 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Lufthansa
6.8
Okay
7,317 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
British Airways
6.7
Okay
7,266 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • What are the cheapest airlines to fly from Montreal to United Kingdom one-way?

    The cheapest airline one-way is Air Transat, with whom users have recently found tickets for as low as C$ 347. However, be on the lookout for offers from WestJet and TAP AIR PORTUGAL, as they are both options that can get you from Montreal to United Kingdom for a low price.

  • 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 Austrian Airlines (87%), United Airlines (87%) or Lufthansa (87%) 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$ 2,269 for a flight from Montreal to United Kingdom. The cheapest flight overall is C$ 435 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at C$ 676.

  • 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, January is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 560). Flying from Montreal to United Kingdom in July is currently the most expensive (average of C$ 856). 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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 129AverageC$ 1,163FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapestC$ 602AverageC$ 679FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 654AverageC$ 1,044FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 695AverageC$ 1,049FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
LufthansaCheapestC$ 701AverageC$ 1,166FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 709AverageC$ 1,187FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 767AverageC$ 1,087FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapestC$ 802AverageC$ 1,228FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapestC$ 815AverageC$ 1,167FlexibilityNo cancel feeOn-time77%
Search Air France flights
WestJetCheapestC$ 842AverageC$ 1,195FlexibilityNo cancel feeOn-time60%
Search WestJet 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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