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Cheap flights from Montreal to London from C$ 430

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LON
26 Mar — 2 Apr1
1 adult

Cheapflights Tip: The best prices from Montreal to London are usually found in September or October, booked 39 days in advance, depart on a Sunday or Friday and return on a Saturday

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 21 March 2025.

Round-trip from

C$ 807

One-way from

C$ 430

Popular in

December

Cheapest in

September

Average price

C$ 994

Good round-trip deal

C$ 726 or less

Good one-way deal

C$ 484 or less
Air Transat
  • Air Transat
  • 28/5-18/6
  • 2 total stops
  • 24h 22m total
  • Montreal to London
2/6
  • 2/6
  • 2 total stops
  • 26h 35m total
  • Montreal to London
Highest demand for flights based on searches. 4% potential increase in price (C$ 67 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 March 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 21 March 2025.

Wed 28/55:40 p.m.YUL - LGW
1 stop12h 05mAir Transat
Wed 18/612:40 p.m.LGW - YUL
1 stop12h 17mAir Transat
Deal found 20/3C$ 807
Fri 20/610:00 a.m.YUL - LGW
1 stop19h 45mPorter Airlines
Tue 1/711:35 a.m.LGW - YUL
Nonstop7h 40mPorter Airlines
Deal found 20/3C$ 809
Sat 31/51:00 p.m.YUL - LHR
1 stop14h 35mMultiple Airlines
Wed 18/66:00 a.m.LHR - YUL
1 stop14h 00mMultiple Airlines
Deal found 20/3C$ 810
Sat 3/51:00 p.m.YUL - LHR
1 stop14h 35mAir Canada
Wed 14/58:40 a.m.LHR - YUL
1 stop11h 20mAir Canada
Deal found 20/3C$ 822
Thu 8/54:40 p.m.YUL - LGW
1 stop20h 10mSWISS
Fri 16/56:40 p.m.LGW - YUL
1 stop25h 20mSWISS
Deal found 21/3C$ 843
Thu 22/510:25 p.m.YUL - LHR
Nonstop6h 35mLufthansa
Sun 1/69:30 a.m.LHR - YUL
Nonstop7h 10mLufthansa
Deal found 20/3C$ 849
Wed 7/511:00 p.m.YUL - SEN
1 stop16h 50mMultiple Airlines
Mon 19/511:05 a.m.SEN - YUL
1 stop14h 55mMultiple Airlines
Deal found 20/3C$ 856
Wed 4/66:45 a.m.YUL - STN
2 stops33h 10mMultiple Airlines
Tue 24/610:45 a.m.STN - YUL
3 stops42h 52mMultiple Airlines
Deal found 20/3C$ 858
Wed 4/66:45 a.m.YUL - LTN
2 stops27h 40mMultiple Airlines
Tue 24/61:10 p.m.LTN - YUL
3 stops40h 27mMultiple Airlines
Deal found 20/3C$ 859
Mon 5/511:00 p.m.YUL - LGW
1 stop15h 10mMultiple Airlines
Wed 7/57:40 a.m.LGW - YUL
1 stop18h 20mMultiple Airlines
Deal found 20/3C$ 860
Tue 6/54:30 p.m.YUL - LHR
2 stops20h 20mSWISS
Mon 12/56:00 a.m.LHR - YUL
2 stops19h 36mSWISS
Deal found 20/3C$ 866
Tue 10/66:50 p.m.YUL - LHR
1 stop21h 05mVirgin Atlantic
Thu 12/67:45 p.m.LHR - YUL
1 stop21h 20mVirgin Atlantic
Deal found 19/3C$ 881

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 21 March 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

Wed 28/5

5:40 p.m.-10:45 a.m.

1 stop12h 05m

London Gatwick

Wed 18/6

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

1 stop12h 17m

C$ 807

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 2/5

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

Nonstop6h 35m

London Heathrow

Fri 9/5

8:40 a.m.-3:00 p.m.

1 stop11h 20m

C$ 807

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

1:00 p.m.-8:35 a.m.

1 stop14h 35m

London Heathrow

Wed 18/6

6:00 a.m.-3:00 p.m.

1 stop14h 00m

C$ 810

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 3/6

4:00 p.m.-10:45 a.m.

1 stop13h 45m

London Gatwick

Fri 13/6

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

1 stop11h 40m

C$ 817

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 2/5

5:10 p.m.-9:35 a.m.

1 stop11h 25m

London Heathrow

Fri 9/5

1:45 p.m.-9:00 p.m.

1 stop12h 15m

C$ 838

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

4:40 p.m.-5:50 p.m.

1 stop20h 10m

London Gatwick

Fri 16/5

6:40 p.m.-3:00 p.m.

1 stop25h 20m

C$ 843

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Wed 7/5

11:00 p.m.-8:50 p.m.

1 stop16h 50m

London Southend

Mon 19/5

11:05 a.m.-9:00 p.m.

1 stop14h 55m

C$ 856

MontrealLondon

YUL - STN

YULSTN

Montreal Pierre Elliott Trudeau Intl

Wed 4/6

6:45 a.m.-8:55 p.m.

2 stops33h 10m

London Stansted

Tue 24/6

10:45 a.m.-12:37 a.m.

3 stops42h 52m

C$ 858

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Wed 4/6

6:45 a.m.-3:25 p.m.

2 stops27h 40m

London Luton

Tue 24/6

1:10 p.m.-12:37 a.m.

3 stops40h 27m

C$ 859

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

11:00 p.m.-7:10 p.m.

1 stop15h 10m

London Gatwick

Wed 7/5

7:40 a.m.-9:00 p.m.

1 stop18h 20m

C$ 860

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

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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 14 March 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 39 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 21 March 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 21 March 2025.

The most flights from YMQ to LON are scheduled on a Friday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 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 21 March 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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

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$ 807. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and Air Canada, with the lowest prices starting at C$ 817 and C$ 822, respectively. Air Transat is currently priced 22% 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$ 439), WestJet (C$ 473), and Air Transat (C$ 488).

  • 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: Aegean Airlines (64%), American Airlines (62%), Aer Lingus( 62%).

  • What are the cheapest flights from Montreal to London?

    The cheapest flight price from Montreal to London is C$ 837. On average you can expect to pay C$ 2,432. The most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), can usually be booked for C$ 697.

  • 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 21 March 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 21 March 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapestC$ 590AverageC$ 1,046FlexibilityNo cancel feeOn-time76%
Search Finnair flights
TAP AIR PORTUGALCheapestC$ 626AverageC$ 695FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air FranceCheapestC$ 632AverageC$ 931FlexibilityNo cancel feeOn-time77%
Search Air France flights
Porter AirlinesCheapestC$ 713AverageC$ 801FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 730AverageC$ 1,040FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 774AverageC$ 1,048FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 798AverageC$ 894FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 838AverageC$ 1,065FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapestC$ 841AverageC$ 1,078FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 1,009AverageC$ 1,190FlexibilityNo 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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