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Cheap flights from Montreal to London, ON from C$ 267

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — YXU
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 (YXU). 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 15 September 2025.

Round-trip from

C$ 452

One-way from

C$ 267

Popular in

November

Cheapest in

January

Average price

C$ 1,091
23/10-30/10
  • 23/10-30/10
  • 3 total stops
  • 39h 59m total
  • Montreal to London
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WestJet
  • WestJet
  • 24/11
  • 2 total stops
  • 36h 27m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 15 September 2025.

Thu 23/106:45 a.m.YUL - YXU
2 stops22h 27mMultiple Airlines
Thu 30/108:00 p.m.YXU - YUL
1 stop17h 32mMultiple Airlines
Deal found 13/9C$ 452
Thu 16/106:45 a.m.YUL - YXU
2 stops22h 27mMultiple Airlines
Thu 23/108:00 p.m.YXU - YUL
1 stop18h 10mMultiple Airlines
Deal found 15/9C$ 457
Thu 23/106:45 a.m.YUL - YXU
2 stops12h 22mWestJet
Wed 29/108:10 p.m.YXU - YUL
1 stop19h 02mWestJet
Deal found 15/9C$ 474
Fri 14/116:45 a.m.YUL - YXU
2 stops12h 27mMultiple Airlines
Fri 21/118:10 p.m.YXU - YUL
1 stop17h 22mMultiple Airlines
Deal found 14/9C$ 571
Thu 16/106:45 a.m.YUL - YXU
2 stops22h 27mWestJet
Thu 23/108:00 p.m.YXU - YUL
2 stops28h 27mWestJet
Deal found 15/9C$ 584
Fri 14/115:10 p.m.YUL - YXU
1 stop4h 11mAir Canada
Fri 21/115:40 p.m.YXU - YUL
1 stop4h 12mAir Canada
Deal found 14/9C$ 611

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 15 September 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 - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

6:45 a.m.-5:12 a.m.

2 stops22h 27m

London

Thu 30/10

8:00 p.m.-1:32 p.m.

1 stop17h 32m

C$ 452

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 16/10

6:45 a.m.-5:12 a.m.

2 stops22h 27m

London

Thu 23/10

8:00 p.m.-2:10 p.m.

1 stop18h 10m

C$ 457

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

6:45 a.m.-7:12 p.m.

2 stops12h 27m

London

Fri 21/11

8:10 p.m.-1:32 p.m.

1 stop17h 22m

C$ 571

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 16/10

6:45 a.m.-5:12 a.m.

2 stops22h 27m

London

Thu 23/10

8:00 p.m.-12:27 a.m.

2 stops28h 27m

C$ 584

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

5:10 p.m.-9:21 p.m.

1 stop4h 11m

London

Fri 21/11

5:40 p.m.-9:52 p.m.

1 stop4h 12m

C$ 611

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Tue 6/1

3:10 p.m.-9:21 p.m.

1 stop6h 11m

London

Tue 27/1

5:40 p.m.-11:22 p.m.

1 stop5h 42m

C$ 645

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

6:45 a.m.-5:12 a.m.

3 stops22h 27m

London

Thu 30/10

8:00 p.m.-12:43 a.m.

3 stops28h 43m

C$ 656

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

6:45 a.m.-7:12 p.m.

2 stops36h 27m

C$ 267

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

6:45 a.m.-7:12 p.m.

2 stops12h 27m

C$ 272

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sat 29/11

6:45 a.m.-7:12 p.m.

2 stops36h 27m

C$ 274

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 17 results
1
2

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

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

Currently, October is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 243). Flying from Montreal to London, Ontario in December is currently the most expensive (average of C$ 478). 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 YXU?

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 15 September 2025.

A simple way to save on the total cost of your ticket is to fly from Montreal to London, Ontario at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.

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 15 September 2025.
Read through reviews of airlines operating flights from Montreal to London, such as Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews
Check prices

Crew

7.8

Comfort

7.1

Overall

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Crew

7.8

Comfort

7.1

Overall

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

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 airport do you fly into for flights to London from Montreal?

    Most people fly into London (YXU) if they book a flight to London from Montreal. On average, London has 0 inbound flights from Montreal per day from 1 airline. London is conveniently located just 8.6 km from London’s city centre.

  • What is the cheapest airline to fly from Montreal to London, Ontario round-trip?

    Our cheapest airline available from Montreal to London, Ontario is Air Canada. Our recent data shows that you can find tickets from as low as C$ 418 on this airline. Users have found that Air Canada is 50% cheaper than the other options available to this destination.

  • 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, Ontario?

    Currently, October is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 243). Flying from Montreal to London, Ontario in December is currently the most expensive (average of C$ 478). 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 London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

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Alternative routes for Montreal to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Montreal to London

Discover the top airline 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 418AverageC$ 736FlexibilityNo cancel feeOn-time67%
Search Air Canada 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?

Deals for Montreal to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Montreal.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Montreal to London flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Montreal to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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