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

According to our current data, Air Transat (£341), Air Canada (£346), and SWISS (£362) offers the cheapest pricing from London to Montreal. Air Transat is priced at 24% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as £246 on Air Transat. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £325 and Aer Lingus from £368 one-way.

In terms of precipitation, rainfall in Montreal ranges from 64.0 - 111.0 inches per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal when rainfall is around 64.0 mm.

If weather is an important factor for your trip to Montreal, 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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

What are the most popular routes from London to Montreal?

Most travelers choose London Heathrow - Montreal Pierre Elliott Trudeau Intl, London Gatwick - Montreal Pierre Elliott Trudeau Intl or London City - Montreal Pierre Elliott Trudeau Intl when deciding on the best route from London to Montreal.

What are the cheapest flights from London to Montreal?

Looking for the cheapest flight from London to Montreal? While on average our users pay £1,378, our data indicates the cheapest price to be £350. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £346.

What are the most reliable airlines from London to Montreal?

The top 3 most reliable airlines when flying from London to Montreal are Austrian Airlines (94%), United Airlines (94%) and Lufthansa (94%).

What are the most popular airlines that fly from London to Montreal?

Consider Air Canada, Air France or Finnair when booking your flight. These represent the most popular airlines when flying from London to Montreal.

What is the cheapest day to fly round-trip from London to Montreal?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Find a great deal and save up to 31% by booking at least 57 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to Montreal within the next two weeks, with the cheapest ticket starting at £403.

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

Flights from London to Montreal lean towards being more expensive in December. Prices are generally better when you fly from London to Montreal in September, with the cheapest ticket starting at £305.

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

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

How can I find direct flights from London to Montreal?

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

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

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

£246+ Flights from London to Montreal

Cheapflights Tip: The best prices from London to Montreal are usually found in September or March, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from London to Montreal

Round-trip from	£341
One-way from	£246
Popular in	December
Cheapest in	September
Average price	£525
Good round-trip deal	£337 or less
Good one-way deal	£276 or less

Air Transat
4/9-9/9
2 total stops
31h 50m total
London to Montreal

Search Deals

Air Transat
1/10
1 total stop
16h 57m total
London to Montreal

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Montreal (YMQ).

Search Deals

Price to beat on a one-way flight from London (LON) to Montreal (YMQ).

Search Deals

Find flight deals from London to Montreal

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

Thu 4/912:40LGW - YUL

1 stop11h 40mAir Transat

Tue 9/906:45YUL - LGW

1 stop20h 10mAir Transat

Deal found 9/7£341

Thu 4/909:30LHR - YUL

Nonstop7h 10mAir Canada

Tue 9/921:55YUL - LHR

Nonstop6h 40mAir Canada

Deal found 9/7£346

Sun 12/1007:25LHR - YUL

1 stop18h 35mMultiple Airlines

Wed 19/1116:50YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 10/7£347

Thu 9/1008:40LHR - YUL

1 stop11h 20mSWISS

Thu 30/1017:50YUL - LHR

1 stop20h 00mSWISS

Deal found 10/7£362

Mon 8/913:45LHR - YUL

1 stop12h 25mTAP AIR PORTUGAL

Mon 22/922:45YUL - LHR

1 stop15h 05mTAP AIR PORTUGAL

Deal found 9/7£364

Wed 5/1109:25LCY - YUL

1 stop10h 50mSWISS

Wed 12/1116:50YUL - LCY

1 stop19h 15mSWISS

Deal found 8/7£366

Sun 14/915:05LTN - YUL

1 stop25h 30mMultiple Airlines

Sun 21/918:50YUL - LTN

1 stop18h 25mMultiple Airlines

Deal found 10/7£375

Tue 2/910:30LHR - YUL

1 stop10h 30mLufthansa

Sat 20/918:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 10/7£376

Wed 1/1007:40LGW - YUL

1 stop18h 20mMultiple Airlines

Wed 1/1023:00YUL - LGW

1 stop10h 00mMultiple Airlines

Deal found 9/7£380

Wed 5/1116:10LHR - YUL

Nonstop7h 35mBritish Airways

Wed 12/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 8/7£389

Fri 5/911:45LHR - YUL

1 stop10h 10mDelta

Wed 28/117:00YUL - LHR

1 stop15h 45mDelta

Deal found 9/7£389

Wed 24/916:25LGW - YUL

1 stop33h 45mTAP AIR PORTUGAL

Wed 15/1022:45YUL - LGW

1 stop30h 00mTAP AIR PORTUGAL

Deal found 9/7£393

Best flights from London to Montreal
Discover carefully curated flight deals from London to Montreal that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Thu 4/912:40LGW - YUL

1 stop11h 40mAir Transat

Tue 9/906:45YUL - LGW

1 stop20h 10mAir Transat

Deal found 9/7£341

Thu 4/909:30LHR - YUL

Nonstop7h 10mAir Canada

Tue 9/921:55YUL - LHR

Nonstop6h 40mAir Canada

Deal found 9/7£346

Sun 12/1007:25LHR - YUL

1 stop18h 35mMultiple Airlines

Wed 19/1116:50YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 10/7£347

Thu 9/1008:40LHR - YUL

1 stop11h 20mSWISS

Thu 30/1017:50YUL - LHR

1 stop20h 00mSWISS

Deal found 10/7£362

Mon 8/913:45LHR - YUL

1 stop12h 25mTAP AIR PORTUGAL

Mon 22/922:45YUL - LHR

1 stop15h 05mTAP AIR PORTUGAL

Deal found 9/7£364

Tue 2/910:30LHR - YUL

1 stop10h 30mLufthansa

Sat 20/918:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 10/7£376

Wed 5/1116:10LHR - YUL

Nonstop7h 35mBritish Airways

Wed 12/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 8/7£389

Fri 5/911:45LHR - YUL

1 stop10h 10mDelta

Wed 28/117:00YUL - LHR

1 stop15h 45mDelta

Deal found 9/7£389

Wed 5/1109:20LCY - YUL

1 stop12h 50mVirgin Atlantic

Wed 12/1112:45YUL - LCY

2 stops15h 05mVirgin Atlantic

Deal found 8/7£432

Wed 5/1109:25LCY - YUL

1 stop10h 50mSWISS

Wed 12/1116:50YUL - LCY

1 stop19h 15mSWISS

Deal found 8/7£366

Sun 14/915:05LTN - YUL

1 stop25h 30mMultiple Airlines

Sun 21/918:50YUL - LTN

1 stop18h 25mMultiple Airlines

Deal found 10/7£375

Wed 24/916:25LGW - YUL

1 stop33h 45mTAP AIR PORTUGAL

Wed 15/1022:45YUL - LGW

1 stop30h 00mTAP AIR PORTUGAL

Deal found 9/7£393

Direct flights from London to Montreal
Explore direct flight options from London to Montreal based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 July 2025.

Tue 2/911:35LGW - YUL

Nonstop7h 40mAir Transat

Tue 9/922:05YUL - LGW

Nonstop6h 45mAir Transat

Deal found 9/7£345

Thu 4/909:30LHR - YUL

Nonstop7h 10mAir Canada

Tue 9/921:55YUL - LHR

Nonstop6h 40mAir Canada

Deal found 9/7£346

Mon 15/918:05LHR - YUL

Nonstop7h 10mBritish Airways

Tue 23/922:10YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 10/7£387

Sun 21/909:30LHR - YUL

Nonstop7h 10mLufthansa

Fri 3/1018:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 10/7£404

Thu 4/911:35LGW - YUL

Nonstop7h 40mMultiple Airlines

Tue 9/922:05YUL - LGW

Nonstop6h 45mMultiple Airlines

Deal found 9/7£419

Sun 17/818:05LHR - YUL

Nonstop7h 10mAmerican Airlines

Wed 10/922:10YUL - LHR

Nonstop6h 40mAmerican Airlines

Deal found 9/7£422

Last-minute flights from London to Montreal
Discover last-minute flight deals from London to Montreal. Data last updated 11 July 2025 and is based on user searches.

Tue 15/706:50LHR - YUL

1 stop9h 40mAir Canada

Tue 22/722:15YUL - LHR

1 stop17h 45mAir Canada

Deal found 10/7£449

Tue 15/706:55LHR - YUL

1 stop16h 55mLufthansa

Tue 29/713:30YUL - LHR

1 stop26h 30mLufthansa

Deal found 10/7£453

Tue 15/709:30LHR - YUL

2 stops15h 35mUnited Airlines

Tue 22/714:20YUL - LHR

2 stops14h 00mUnited Airlines

Deal found 10/7£492

Tue 15/706:50LHR - YUL

1 stop9h 40mBrussels Airlines

Thu 24/721:45YUL - LHR

2 stops14h 20mBrussels Airlines

Deal found 9/7£516

Wed 16/706:50LHR - YUL

1 stop9h 40mMultiple Airlines

Mon 28/722:25YUL - LHR

Nonstop6h 35mMultiple Airlines

Deal found 10/7£438

Wed 16/707:00LTN - YUL

1 stop15h 20mMultiple Airlines

Wed 23/723:45YUL - LTN

1 stop31h 35mMultiple Airlines

Deal found 11/7£539

Wed 16/707:20LGW - YUL

1 stop15h 00mMultiple Airlines

Wed 23/723:45YUL - LGW

1 stop27h 50mMultiple Airlines

Deal found 11/7£550

Wed 16/708:45LCY - YUL

1 stop12h 15mMultiple Airlines

Wed 23/718:35YUL - LCY

1 stop16h 50mMultiple Airlines

Deal found 11/7£615

Wed 16/707:30STN - YUL

1 stop14h 50mMultiple Airlines

Wed 23/723:45YUL - STN

1 stop12h 10mMultiple Airlines

Deal found 11/7£648

Thu 17/711:35LGW - YUL

Nonstop7h 40mAir Transat

Fri 1/817:40YUL - LGW

1 stop12h 05mAir Transat

Deal found 9/7£547

Fri 18/711:30LHR - YUL

2 stops16h 38mDelta

Sun 20/718:50YUL - LHR

1 stop10h 55mDelta

Deal found 10/7£639

Fri 18/707:45LCY - YUL

1 stop14h 10mKLM

Mon 21/718:50YUL - LCY

1 stop9h 40mKLM

Deal found 11/7£667

One-way flights from London to Montreal
Search for one-way flight options from London to Montreal. Find affordable one-way fares based on user searches. Data last updated 11 July 2025.

Wed 1/1012:40LGW - YUL

1 stop16h 57mAir Transat

Deal found 9/7£246

Sat 1/1108:30LGW - YUL

1 stop16h 30mMultiple Airlines

Deal found 10/7£248

Mon 8/1208:40STN - YUL

3 stops31h 30mMultiple Airlines

Deal found 9/7£251

Mon 1/918:45LTN - YUL

1 stop24h 40mMultiple Airlines

Deal found 10/7£252

Thu 6/1109:55LHR - YUL

3 stops30h 20mMultiple Airlines

Deal found 9/7£258

Mon 20/1011:05SEN - YUL

1 stop31h 55mMultiple Airlines

Deal found 10/7£269

Mon 22/910:00LCY - YUL

2 stops16h 00mMultiple Airlines

Deal found 9/7£311

Wed 8/1019:50LHR - YUL

1 stop30h 20mTAP AIR PORTUGAL

Deal found 9/7£325

Mon 17/1110:40LGW - YUL

1 stop14h 35mTAP AIR PORTUGAL

Deal found 11/7£327

Mon 15/908:50LHR - YUL

2 stops15h 30mAer Lingus

Deal found 10/7£368

Tue 16/909:25LCY - YUL

1 stop10h 35mSWISS

Deal found 8/7£408

Mon 8/908:45LCY - YUL

1 stop12h 15mLufthansa

Deal found 8/7£412

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Thu 4/9

12:40-19:20

1 stop11h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

06:45-07:55

1 stop20h 10m

£341

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 4/9

09:30-11:40

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

21:55-09:35

Nonstop6h 40m

£346

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 12/10

07:25-21:00

1 stop18h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

16:50-08:05

1 stop10h 15m

£347

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 9/10

08:40-15:00

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

17:50-17:50

1 stop20h 00m

£362

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 8/9

13:45-21:10

1 stop12h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

22:45-18:50

1 stop15h 05m

£364

LondonMontreal

LCY - YUL

LCYYUL

London City

Wed 5/11

09:25-15:15

1 stop10h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

16:50-17:05

1 stop19h 15m

£366

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Sun 14/9

15:05-11:35

1 stop25h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 21/9

18:50-18:15

1 stop18h 25m

£375

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/9

10:30-16:00

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

18:55-06:30

Nonstop6h 35m

£376

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 1/10

07:40-21:00

1 stop18h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

23:00-14:00

1 stop10h 00m

£380

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 5/11

16:10-18:45

Nonstop7h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

20:40-08:30

Nonstop6h 50m

£389

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 32 results

Best time to book a flight from London to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from London with our price prediction graph.

Estimated return 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 London to Montreal

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

To ensure you get the cheapest price possible for a flight from London to Montreal, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from London to Montreal (average of £475). Flying from London to Montreal in July is currently the most expensive (average of £743). 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 LON to YMQ?

It’s optimal to fly from London to Montreal in the evening. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight at midday.

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

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

Weekly flight availability from London to Montreal

The most flights from LON to YMQ are scheduled on a Tuesday (19 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost for a return flight from London to Montreal?

Reviews of airlines servicing Montreal

Read reviews from past customers who have flown with Delta, Air Transat, andSWISS from London to Montreal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,951 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Transat

7.8

Good

412 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,655 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,696 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from London to Montreal round-trip?
According to our current data, Air Transat (£341), Air Canada (£346), and SWISS (£362) offers the cheapest pricing from London to Montreal. Air Transat is priced at 24% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from London to Montreal one-way?
One-way options have recently been found by users for as low as £246 on Air Transat. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £325 and Aer Lingus from £368 one-way.
What are the most popular routes from London to Montreal?
Most travelers choose London Heathrow - Montreal Pierre Elliott Trudeau Intl, London Gatwick - Montreal Pierre Elliott Trudeau Intl or London City - Montreal Pierre Elliott Trudeau Intl when deciding on the best route from London to Montreal.
What are the most reliable airlines from London to Montreal?
The top 3 most reliable airlines when flying from London to Montreal are Austrian Airlines (94%), United Airlines (94%) and Lufthansa (94%).
What are the cheapest flights from London to Montreal?
Looking for the cheapest flight from London to Montreal? While on average our users pay £1,378, our data indicates the cheapest price to be £350. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £346.
Can I find deals for flights from London to Montreal that include hotel bookings?
Yes. In addition to deals on London to Montreal flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Montreal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Montreal.
Can I find deals for business class flights from London to Montreal?
Yes. Cheapflights offers flight deals from London to Montreal 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 London to Montreal?
Currently, February is the cheapest month in which you can book a flight from London to Montreal (average of £475). Flying from London to Montreal in July is currently the most expensive (average of £743). 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

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from London to Montreal

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£95	Average£522	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Transat	Cheapest£307	Average£512	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
United Airlines	Cheapest£322	Average£481	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
TAP AIR PORTUGAL	Cheapest£332	Average£530	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Canada	Cheapest£365	Average£476	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£366	Average£483	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£369	Average£530	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£380	Average£676	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£400	Average£710	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Montreal?

Cheapflights helps you search for flights from London to Montreal via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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 London to Montreal.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Montreal from London today and book when prices fit your budget.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to Montreal from £246

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Montreal are usually found in September or March, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from London to Montreal

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from London to Montreal

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

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

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Montreal that are best for you.

Best time to book a flight from London to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Montreal

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

Use this chart to determine the optimal time to book a return flight from London to Montreal. Price data was last updated on 27 June 2025.

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

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

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

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

Use this chart to determine the cheapest time to fly return from London to Montreal. Price data was last updated on 16 December 2024.

Weekly flight availability from London to Montreal

Explore weekly flight availability from London to Montreal. 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 July 2025.

How much does it cost for a return flight from London to Montreal?

Reviews of airlines servicing Montreal

Read reviews from past customers who have flown with Delta, Air Transat, andSWISS from London to Montreal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Montreal. 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 flying from London to Montreal round-trip?

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

What are the most popular routes from London to Montreal?

What are the most reliable airlines from London to Montreal?

What are the cheapest flights from London to Montreal?

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

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

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Fly from London to Montreal on these airlines

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

Top 9 airlines flying from London to Montreal

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