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Cheap flights from Montreal to London from C$ 445

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LON
16 avr. — 23 avr.1
1 adult

Cheapflights Tip: The best prices from Montreal to London are usually found in May or September, booked 60 days in advance, depart on a Sunday or Friday and return on a Wednesday

Cheap flight deals from Montreal to London

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 avril 2025.

Round-trip from

C$ 750

One-way from

C$ 445

Popular in

December

Cheapest in

May

Average price

C$ 987

Good round-trip deal

C$ 776 or less

Good one-way deal

C$ 490 or less
Air Transat
  • Air Transat
  • 6/6-13/6
  • Nonstop
  • 14h 25m total
  • Montreal to London
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 24/9
  • 1 total stop
  • 14h 00m total
  • Montreal to London
Highest demand for flights based on searches. 5% potential increase in price (C$ 80 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Montreal (YMQ) to London (LON).
Price to beat on a one-way flight from Montreal (YMQ) to London (LON).

Find flight deals from Montreal to London

Cheapest flights from Montreal to London
Explore the most affordable flight options available from Montreal to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 avril 2025.

ven. 6/610:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
sam. 14/611:35 a.m.LGW - YUL
Nonstop7h 40mAir Transat
Deal found 10/4C$ 750
mar. 20/510:25 p.m.YUL - LHR
Nonstop6h 35mAir Canada
mar. 10/69:05 a.m.LHR - YUL
1 stop33h 45mAir Canada
Deal found 10/4C$ 754
sam. 10/510:25 p.m.YUL - LHR
Nonstop6h 35mLufthansa
mer. 14/59:00 a.m.LHR - YUL
1 stop17h 00mLufthansa
Deal found 10/4C$ 755
jeu. 8/510:05 p.m.YUL - LHR
Nonstop6h 40mBritish Airways
jeu. 15/56:05 p.m.LHR - YUL
Nonstop7h 10mBritish Airways
Deal found 10/4C$ 760
sam. 10/53:10 p.m.YUL - LGW
1 stop14h 35mPorter Airlines
ven. 16/512:40 p.m.LGW - YUL
1 stop12h 17mPorter Airlines
Deal found 10/4C$ 783
mar. 29/410:20 p.m.YUL - LHR
Nonstop6h 40mMultiple Airlines
lun. 5/59:30 a.m.LHR - YUL
1 stop11h 30mMultiple Airlines
Deal found 10/4C$ 783
ven. 19/911:00 p.m.YUL - LGW
1 stop15h 30mMultiple Airlines
dim. 21/97:40 a.m.LGW - YUL
1 stop18h 20mMultiple Airlines
Deal found 10/4C$ 795
mar. 22/410:10 p.m.YUL - LHR
Nonstop6h 40mAmerican Airlines
jeu. 1/56:05 p.m.LHR - YUL
Nonstop7h 10mAmerican Airlines
Deal found 10/4C$ 799
mer. 27/810:45 p.m.YUL - LGW
1 stop30h 00mTAP AIR PORTUGAL
mer. 5/1110:40 a.m.LGW - YUL
1 stop14h 35mTAP AIR PORTUGAL
Deal found 10/4C$ 826
mar. 10/67:29 a.m.YUL - LGW
2 stops18h 06mAmerican Airlines
mar. 24/63:05 p.m.LGW - YUL
2 stops27h 39mAmerican Airlines
Deal found 10/4C$ 870
lun. 26/56:50 p.m.YUL - LCY
1 stop16h 50mVirgin Atlantic
lun. 2/69:20 a.m.LCY - YUL
1 stop12h 35mVirgin Atlantic
Deal found 11/4C$ 876
mar. 13/57:00 p.m.YUL - LHR
1 stop18h 35mVirgin Atlantic
mer. 21/511:45 a.m.LHR - YUL
1 stop10h 10mVirgin Atlantic
Deal found 10/4C$ 880

Cheapflights Fare Finder

Customize your flight search to find flights from Montreal to London 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 11 avril 2025.
Use the filters below to find and compare flights from Montreal to London that are best for you.

Fly from

Montreal

Fly to

London

Route

Depart

Return

Price

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

ven. 6/6

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

Nonstop6h 45m

London Gatwick

ven. 13/6

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

Nonstop7h 40m

C$ 750

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

sam. 3/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

sam. 17/5

9:00 a.m.-9:00 p.m.

1 stop17h 00m

C$ 750

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar. 20/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

mar. 10/6

9:05 a.m.-1:50 p.m.

1 stop33h 45m

C$ 754

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

sam. 10/5

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

London Heathrow

mer. 14/5

9:00 a.m.-9:00 p.m.

1 stop17h 00m

C$ 755

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jeu. 8/5

10:05 p.m.-9:45 a.m.

Nonstop6h 40m

London Heathrow

jeu. 15/5

6:05 p.m.-8:15 p.m.

Nonstop7h 10m

C$ 760

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

sam. 10/5

3:10 p.m.-10:45 a.m.

1 stop14h 35m

London Gatwick

ven. 16/5

12:40 p.m.-7:57 p.m.

1 stop12h 17m

C$ 783

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar. 22/4

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

Nonstop6h 40m

London Heathrow

jeu. 1/5

6:05 p.m.-8:15 p.m.

Nonstop7h 10m

C$ 799

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

mer. 11/6

6:45 a.m.-9:25 a.m.

2 stops21h 40m

London Gatwick

mar. 17/6

7:50 p.m.-9:00 p.m.

1 stop30h 10m

C$ 852

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

mar. 10/6

7:29 a.m.-6:35 a.m.

2 stops18h 06m

London Gatwick

mar. 24/6

3:05 p.m.-1:44 p.m.

2 stops27h 39m

C$ 870

MontrealLondon

YUL - LCY

YULLCY

Montreal Pierre Elliott Trudeau Intl

lun. 26/5

6:50 p.m.-4:40 p.m.

1 stop16h 50m

London City

lun. 2/6

9:20 a.m.-4:55 p.m.

1 stop12h 35m

C$ 876

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

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Best time to book a flight from Montreal to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

How far ahead should I book a flight from Montreal to London?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to London. Price data was last updated on 4 April 2025.

The price you pay for your flight from Montreal to London may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Montreal to London (average of C$ 560). Flying from Montreal to London in July is currently the most expensive (average of C$ 874). 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 LON?

Find hourly flight availability from Montreal to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 avril 2025.

It’s typically best to fly out from Montreal to London at noon. Doing so could potentially save you 38% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Montreal to London?

Use this chart to determine the cheapest time to fly round-trip from Montreal to London. Price data was last updated on 15 September 2024.

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

Weekly flight availability from Montreal to London

Explore weekly flight availability from Montreal to London. 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 11 avril 2025.

The most flights from YMQ to LON 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 (12 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 avril 2025.
Peruse reviews from past customers who have flown with Delta, Porter Airlines and KLM from Montreal to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Montreal to London Travel Guide

London Gatwick is an international airport that is outside the central London area. It’s actually about 30 miles from the city centre. This is the second busiest airport in the United Kingdom. Its physical footprint is about 1,670 acres.

The largest and busiest airport in the United Kingdom, and the main airport in London, is London Heathrow. This airport is actually the second busiest airport in the entire world. It’s located only 14 miles from the middle of London.

Generally you’ll find that the stopover times are only a few hours, but there are some that will make your travel time up to double what the direct flights are. You will find that the stopover flights do sometimes cost less than direct flights do for this route, but it varies.

Related info for your journey

Find useful and relevant information for your journey from Montreal to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve Montreal to London flights?

    You will fly from Pierre Elliott Trudeau International Airport in Montreal to London and land at either London Gatwick or London Heathrow. There are many flight options to choose from so you’ll be able to find a good fit for your trip.

  • Which airlines fly directly from Montreal to London?

    You will be able to find direct flights from Montreal into Heathrow on Air Canada, Lufthansa, American Airlines, Iberia, Finnair, and British Airways. The flight takes 6h 35m. Lufthansa’s flight is handled by Air Canada. American Airlines, Iberia, and Finnair are all handled by British Airways.

  • What are the stopover options between Montreal to London?

    You can fly on WestJet and you’ll stop in Toronto on your way to London Gatwick. Virgin Atlantic has flights to London Heathrow that stop in Amsterdam or at JFK in New York. Other stops include Newark or Paris.

  • Do I need a passport or visa to fly from Montreal to London?

    You will need your passport to visit London. You will not, however, need to get a visa for traveling to London for pleasure. The authority will stamp your passport upon arrival and that will allow you to stay for up to six months. Staying longer than that or traveling for any other reason may require a visa.

  • What are the cheapest airlines flying from Montreal to London round-trip?

    Flying on Air Transat is currently your cheapest option to London, with prices starting at C$ 750. Additional round-trip tickets that might be worth considering are offered by Air Canada and Lufthansa, with the lowest prices starting at C$ 754 and C$ 755, respectively. Air Transat is currently priced 25% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Montreal to London are TAP AIR PORTUGAL (C$ 445), Porter Airlines (C$ 465), and Air Transat (C$ 470).

  • What are the most popular routes from Montreal to London?

  • What are the most reliable airlines from Montreal to London?

    Before booking your flight to London from Montreal, check out the most reliable airlines to get you to your destination on time: Thai Airways (100%), Air Canada (81%), Austrian Airlines( 81%).

  • What are the cheapest flights from Montreal to London?

    The cheapest flight price from Montreal to London is C$ 649. On average you can expect to pay C$ 1,823. The most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), can usually be booked for C$ 529.

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

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

  • How can I find direct flights from Montreal to London?

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

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

    Yes. Cheapflights offers flight deals from Montreal to London 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 London?

    Currently, January is the cheapest month in which you can book a flight from Montreal to London (average of C$ 560). Flying from Montreal to London in July is currently the most expensive (average of C$ 874). 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

Travelling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Brentford
Hounslow
Sutton
Slough
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

Browse thousands of different options on Cheapflights for your next trip

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Fly from Montreal to London on these airlines

Choose from the following airlines for your flight from Montreal to London. Flights are based on user searches made on Cheapflights and were last updated on 11 avril 2025.

Top 10 airlines flying from Montreal to London

Discover the top 10 airlines that operate flights from Montreal to London. 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 11 avril 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapestC$ 577AverageC$ 1,024FlexibilityNo cancel feeOn-time76%
Search Finnair flights
TAP AIR PORTUGALCheapestC$ 613AverageC$ 680FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapestC$ 619AverageC$ 912FlexibilityNo cancel feeOn-time77%
Search Air France flights
Porter AirlinesCheapestC$ 698AverageC$ 784FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 715AverageC$ 1,004FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 757AverageC$ 1,008FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 781AverageC$ 875FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 821AverageC$ 1,044FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapestC$ 821AverageC$ 1,054FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 965AverageC$ 1,166FlexibilityNo cancel feeOn-time71%
Search American Airlines 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 London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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

Yes! Start tracking prices for Montreal to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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