Cheap flights from Montreal to the United Kingdom from C$ 414

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 21/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LHR
5 Dec — 12 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 5 November 2025.

Round-trip from

C$ 736

One-way from

C$ 414

Popular in

December

Cheapest in

May

Average price

C$ 911

Good round-trip deal

C$ 764 or less

Good one-way deal

C$ 413 or less
5/12-12/12
  • 5/12-12/12
  • 2 total stops
  • 38h 50m total
  • Montreal to United Kingdom
21/11
  • 21/11
  • 2 total stops
  • 32h 20m total
  • Montreal to United Kingdom
Highest demand for flights based on searches. 6% potential increase in price (C$ 104 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from Montreal (YMQ) to United Kingdom.
Price to beat on a one-way flight from Montreal (YMQ) to United Kingdom.

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 5 November 2025.

Fri 5/128:15 p.m.YUL - MAN
1 stop17h 10mMultiple Airlines
Fri 12/127:35 p.m.MAN - YUL
1 stop21h 40mMultiple Airlines
Deal found 3/11C$ 736
Mon 8/129:45 p.m.YUL - LHR
1 stop18h 50mTAP AIR PORTUGAL
Sun 14/127:55 p.m.LHR - YUL
1 stop29h 20mTAP AIR PORTUGAL
Deal found 3/11C$ 779
Mon 1/129:45 p.m.YUL - LHR
1 stop14h 45mTAP AIR PORTUGAL
Mon 15/126:00 a.m.LHR - YUL
1 stop19h 15mTAP AIR PORTUGAL
Deal found 3/11C$ 780
Mon 1/129:45 p.m.YUL - MAN
1 stop21h 10mMultiple Airlines
Mon 8/129:45 a.m.MAN - YUL
1 stop15h 30mMultiple Airlines
Deal found 3/11C$ 787
Sun 7/129:45 p.m.YUL - LHR
1 stop14h 45mTAP AIR PORTUGAL
Sun 14/124:30 p.m.LHR - YUL
1 stop32h 45mTAP AIR PORTUGAL
Deal found 3/11C$ 787
Fri 14/113:30 p.m.YUL - LHR
1 stop12h 50mMultiple Airlines
Tue 18/119:00 a.m.LHR - YUL
1 stop11h 10mMultiple Airlines
Deal found 3/11C$ 790
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 3/11C$ 793
Sun 23/116:45 a.m.YUL - LGW
1 stop22h 00mAir Transat
Wed 26/1111:40 a.m.LGW - YUL
1 stop27h 00mAir Transat
Deal found 3/11C$ 794
Sat 15/111:40 p.m.YUL - LGW
1 stop15h 05mAir Transat
Sat 22/1111:40 a.m.LGW - YUL
1 stop17h 55mAir Transat
Deal found 3/11C$ 798
Sat 22/116:45 a.m.YUL - LGW
1 stop22h 00mAir Transat
Fri 28/1111:40 a.m.LGW - YUL
1 stop27h 00mAir Transat
Deal found 2/11C$ 800
Fri 21/119:45 p.m.YUL - LHR
1 stop17h 50mMultiple Airlines
Tue 25/115:10 p.m.LHR - YUL
1 stop27h 00mMultiple Airlines
Deal found 4/11C$ 802
Thu 20/119:45 p.m.YUL - LHR
1 stop17h 50mMultiple Airlines
Wed 26/116:00 a.m.LHR - YUL
1 stop14h 10mMultiple Airlines
Deal found 3/11C$ 805

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 5 November 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 - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

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

1 stop14h 45m

London Heathrow

Mon 15/12

6:00 a.m.-8:15 p.m.

1 stop19h 15m

C$ 780

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

8:10 p.m.-8:05 p.m.

1 stop18h 55m

London Luton

Tue 27/1

6:35 p.m.-12:40 p.m.

1 stop23h 05m

C$ 802

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

5:25 p.m.-9:45 a.m.

1 stop11h 20m

London Gatwick

Sun 30/11

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

1 stop11h 45m

C$ 807

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

8:10 p.m.-9:50 p.m.

1 stop20h 40m

London Luton

Wed 25/2

2:40 p.m.-12:40 p.m.

1 stop27h 00m

C$ 810

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

8:10 p.m.-9:00 p.m.

1 stop19h 50m

London Southend

Thu 11/12

6:05 p.m.-12:40 p.m.

1 stop23h 35m

C$ 818

MontrealManchester

YUL - MAN

YULMAN

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

8:10 p.m.-5:35 p.m.

1 stop16h 25m

Manchester

Wed 18/2

6:55 p.m.-12:40 p.m.

1 stop22h 45m

C$ 819

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

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

1 stop22h 00m

London Gatwick

Wed 10/12

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

1 stop17h 55m

C$ 826

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

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

1 stop18h 10m

London Gatwick

Sun 7/12

11:40 a.m.-10:25 p.m.

1 stop15h 45m

C$ 826

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

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

1 stop18h 10m

London Gatwick

Fri 5/12

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

1 stop17h 55m

C$ 826

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 29/11

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

Nonstop7h 00m

London Heathrow

Mon 8/12

1:25 p.m.-4:10 p.m.

Nonstop7h 45m

C$ 843

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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$ 132). Flying from Montreal to United Kingdom in August is currently the most expensive (average of C$ 836). 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 5 November 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.

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 5 November 2025.

The most flights from YMQ to GB0 are scheduled on a Monday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 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 5 November 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.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Crew

8.6

Entertainment

7.0

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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 11h 20m. TAP AIR PORTUGAL provides one of the quickest options available for as low as C$ 807. The distance from Montreal to United Kingdom is about 5243 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as C$ 415. However, be on the lookout for offers from WestJet and Aer Lingus, 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?

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

    Consider Egyptair (82%), Air Canada (80%) or Austrian Airlines (80%) 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$ 2,111 for a flight from Montreal to United Kingdom. The cheapest flight overall is C$ 678 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at C$ 657.

  • 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$ 132). Flying from Montreal to United Kingdom in August is currently the most expensive (average of C$ 836). 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.

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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 621AverageC$ 1,256FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 643AverageC$ 731FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 645AverageC$ 1,076FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 710AverageC$ 1,095FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 724AverageC$ 1,190FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 772AverageC$ 1,013FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapestC$ 774AverageC$ 1,184FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 806AverageC$ 1,104FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 808AverageC$ 1,229FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapestC$ 841AverageC$ 1,423FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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?

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