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Cheap flights from Montreal to the United Kingdom from C$ 357

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LHR
19 Aug — 26 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 20 July 2026.

Wed 7/102:10 p.m.
YUL
-
GLA
2 stops12h 55m
Aer Lingus
Wed 14/108:35 a.m.
GLA
-
YUL
2 stops15h 46m
Aer Lingus
Deal found 17/7C$ 632
Mon 28/911:10 a.m.
YUL
-
EDI
2 stops15h 50m
Aer Lingus
Mon 5/109:15 a.m.
EDI
-
YUL
2 stops15h 06m
Aer Lingus
Deal found 17/7C$ 687
Wed 30/910:10 a.m.
YUL
-
EDI
2 stops17h 20m
Aer Lingus
Wed 7/108:35 a.m.
EDI
-
YUL
2 stops15h 46m
Aer Lingus
Deal found 17/7C$ 702
Fri 9/1010:10 a.m.
YUL
-
EDI
2 stops16h 50m
Aer Lingus
Mon 19/109:15 a.m.
EDI
-
YUL
2 stops17h 35m
Aer Lingus
Deal found 17/7C$ 723
Sun 13/95:45 p.m.
YUL
-
GLA
1 stop10h 55m
Multiple Airlines
Wed 16/910:35 p.m.
GLA
-
YUL
2 stops23h 10m
Multiple Airlines
Deal found 15/7C$ 726
Mon 7/93:10 p.m.
YUL
-
LGW
1 stop14h 35m
Air Transat
Wed 16/911:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 17/7C$ 732
Sun 13/95:45 p.m.
YUL
-
GLA
1 stop10h 55m
WestJet
Sat 19/911:00 a.m.
GLA
-
YUL
1 stop18h 25m
WestJet
Deal found 15/7C$ 732
Thu 3/910:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Wed 9/911:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 18/7C$ 733
Fri 11/98:35 p.m.
YUL
-
LGW
1 stop9h 10m
Air Transat
Sat 19/99:40 a.m.
LGW
-
YUL
1 stop14h 52m
Air Transat
Deal found 20/7C$ 735
Mon 21/910:00 p.m.
YUL
-
LHR
Nonstop6h 40m
Aer Lingus
Fri 2/106:05 p.m.
LHR
-
YUL
Nonstop7h 10m
Aer Lingus
Deal found 17/7C$ 735
Thu 3/910:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Fri 18/911:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 16/7C$ 736
Wed 4/119:45 p.m.
YUL
-
MAN
1 stop13h 30m
TAP AIR PORTUGAL
Wed 11/1111:25 a.m.
MAN
-
YUL
1 stop13h 30m
TAP AIR PORTUGAL
Deal found 19/7C$ 737

Find 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 20 July 2026.

Round-trip from

C$ 632

One-way from

C$ 357

Popular in

December

Cheapest in

November

Average price

C$ 1,105

Good round-trip deal

C$ 734 or less

Good one-way deal

C$ 449 or less
Aer Lingus
  • Aer Lingus
  • 7/10-14/10
  • 4 total stops
  • 28h 41m total
  • Montreal to United Kingdom
Search Deals
WestJet
  • WestJet
  • 16/9
  • 2 total stops
  • 33h 20m total
  • Montreal to United Kingdom
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to United Kingdom.
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to United Kingdom.
Search Deals

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 20 July 2026.
Use the filters below to find and compare flights from Montreal to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

8:35 p.m.-7:55 a.m.

1 stop30h 20m

London Gatwick

Wed 9/9

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

Nonstop7h 40m

C$ 774

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

8:35 p.m.-7:55 a.m.

1 stop30h 20m

London Gatwick

Tue 8/9

12:40 p.m.-12:37 a.m.

1 stop16h 57m

C$ 785

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

11:35 p.m.-11:20 a.m.

Nonstop6h 45m

London Gatwick

Sat 12/9

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

Nonstop7h 40m

C$ 810

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

6:50 p.m.-10:10 p.m.

1 stop22h 20m

London Luton

Wed 9/9

7:20 p.m.-11:35 a.m.

1 stop21h 15m

C$ 813

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

11:45 p.m.-9:50 p.m.

1 stop17h 05m

London Gatwick

Thu 24/9

9:15 a.m.-5:20 p.m.

1 stop13h 05m

C$ 816

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

8:35 p.m.-7:55 a.m.

1 stop30h 20m

London Gatwick

Thu 10/9

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

Nonstop7h 40m

C$ 821

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 29/9

11:45 p.m.-9:45 p.m.

1 stop17h 00m

London Luton

Sat 10/10

7:00 a.m.-5:20 p.m.

1 stop15h 20m

C$ 824

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

11:45 p.m.-9:45 p.m.

1 stop17h 00m

London Luton

Thu 24/9

7:00 a.m.-5:20 p.m.

1 stop15h 20m

C$ 833

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:50 p.m.-10:25 a.m.

1 stop10h 35m

London Southend

Fri 11/9

11:20 a.m.-11:35 a.m.

1 stop29h 15m

C$ 840

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 18/10

8:35 p.m.-10:45 a.m.

1 stop9h 10m

London Gatwick

Sat 28/11

11:40 a.m.-7:15 p.m.

1 stop12h 35m

C$ 850

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, November is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 878). Flying from Montreal to United Kingdom in December is currently the most expensive (average of C$ 1,287). 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 20 July 2026.

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

Weekly flight availability from Montreal to United Kingdom

Explore weekly flight availability from Montreal to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 July 2026.

The most flights from YMQ to GB0 are scheduled on a Friday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

How often are flights from Montreal to the United Kingdom delayed?

About 21% of weekly flights between Montreal and United Kingdom have experienced delays in the past year, with the average delay time being 157 minutes.

What is the most punctual flight time for Montreal to the United Kingdom flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to the United Kingdom flights?

Over the past year, Air Transat has had the lowest number of delays on this route, with just 11% of flights being delayed.

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

The best time to book flights from Montreal to United Kingdom is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 20 July 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAir Canada from Montreal to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
448 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Transat
7.8
Good
566 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,361 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Lufthansa
6.8
Okay
8,152 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
British Airways
6.7
Okay
8,125 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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 16h 35m. Air Transat provides one of the quickest options available for as low as C$ 924. The distance from Montreal to United Kingdom is about 5213 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 Air Transat, with whom users have recently found tickets for as low as C$ 331. However, be on the lookout for offers from WestJet and Porter Airlines, as they are both options that can get you from Montreal to United Kingdom for a low price.

  • What are the most popular routes from Montreal to United Kingdom?

    The most popular flight routes from Montreal to United Kingdom are Montreal Pierre Elliott Trudeau Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Gatwick and Montreal Pierre Elliott Trudeau Intl - London Stansted.

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

    Consider Austrian Airlines (80%), United Airlines (80%) or Lufthansa (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$ 2,181 for a flight from Montreal to United Kingdom. The cheapest flight overall is C$ 775 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at C$ 687.

  • 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, November is the cheapest month in which you can book a flight from Montreal to United Kingdom (average of C$ 878). Flying from Montreal to United Kingdom in December is currently the most expensive (average of C$ 1,287). 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

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Alternative routes for Montreal to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Montreal to United Kingdom

Discover the top 10 airlines that operate flights from Montreal to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 20 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapestC$ 551AverageC$ 614FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
TAP AIR PORTUGALCheapestC$ 562AverageC$ 831FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 675AverageC$ 1,116FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 722AverageC$ 1,035FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 736AverageC$ 967FlexibilityNo cancel feeOn-time60%
Search WestJet flights
British AirwaysCheapestC$ 768AverageC$ 1,260FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 769AverageC$ 1,179FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 786AverageC$ 1,166FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapestC$ 789AverageC$ 982FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 875AverageC$ 1,129FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to United Kingdom?

Cheapflights makes it easy to find Montreal to United Kingdom flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to United Kingdom.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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