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Cheap flights from Montreal to London, ON from C$ 395

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — YXU
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to London

Enter your travel dates to find the best prices.

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 23 December 2025.

Wed 31/124:00 p.m.YUL - YXU
2 stops5h 21mAir Canada
Sun 4/19:50 a.m.YXU - YUL
2 stops5h 50mAir Canada
Deal found 21/12C$ 1,192
Wed 31/1211:10 a.m.YUL - YXU
1 stop5h 55mAir Canada
Sat 3/15:10 a.m.YXU - YUL
1 stop6h 13mAir Canada
Deal found 21/12C$ 1,236
Tue 30/125:00 a.m.YUL - YXU
1 stop3h 46mAir Canada
Tue 30/125:40 p.m.YXU - YUL
1 stop5h 42mAir Canada
Deal found 21/12C$ 1,384
Sat 27/1212:10 p.m.YUL - YXU
1 stop4h 55mAir Canada
Sat 3/19:25 a.m.YXU - YUL
1 stop4h 57mAir Canada
Deal found 22/12C$ 1,487
Wed 31/121:40 p.m.YUL - YXU
3 stops16h 54mMultiple Airlines
Sun 4/18:10 p.m.YXU - YUL
2 stops26h 00mMultiple Airlines
Deal found 21/12C$ 1,501
Wed 31/127:30 p.m.YUL - YXU
1 stop11h 04mMultiple Airlines
Sat 3/15:05 p.m.YXU - YUL
1 stop24h 40mMultiple Airlines
Deal found 21/12C$ 2,879

Find 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 23 December 2025.

Round-trip from

C$ 511

One-way from

C$ 395

Popular in

November

Cheapest in

October

Average price

C$ 960
WestJet
  • WestJet
  • 25/1-29/1
  • 3 total stops
  • 34h 44m total
  • Montreal to London
Search Deals
Air Canada
  • Air Canada
  • 1/3
  • 1 total stop
  • 10h 16m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 74 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 23 December 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

Sun 25/1

6:45 a.m.-6:34 a.m.

2 stops23h 49m

London

Thu 29/1

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 511

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

7:30 p.m.-6:34 a.m.

1 stop11h 04m

London

Mon 19/1

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 523

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

7:30 p.m.-6:34 a.m.

1 stop11h 04m

London

Sun 18/1

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 545

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

7:30 p.m.-6:35 a.m.

1 stop11h 05m

London

Tue 12/5

8:00 p.m.-2:15 p.m.

1 stop18h 15m

C$ 548

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

7:30 p.m.-6:34 a.m.

1 stop11h 04m

London

Mon 19/1

8:10 p.m.-5:00 p.m.

2 stops20h 50m

C$ 595

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

7:30 p.m.-6:34 a.m.

1 stop11h 04m

London

Mon 19/1

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 679

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

5:30 p.m.-5:12 a.m.

1 stop11h 42m

London

Wed 13/5

8:00 p.m.-2:15 p.m.

1 stop18h 15m

C$ 699

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 11/3

5:00 a.m.-8:46 a.m.

1 stop3h 46m

London

Sat 21/3

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

1 stop4h 12m

C$ 710

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 1/3

10:30 p.m.-8:46 a.m.

1 stop10h 16m

C$ 395

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 1/3

11:25 a.m.-6:35 a.m.

2 stops43h 10m

C$ 446

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/12

Showing 1-10 of 15 results
1
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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

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

Currently, January is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 99). Flying from Montreal to London, Ontario in August is currently the most expensive (average of C$ 215). 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 23 December 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 69% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Montreal to London, Ontario?

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 23 December 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
10,551 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Boarding

7.3

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
10,551 reviews
Air Canada
7.1
Good
10,551 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Boarding

7.3

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.

  • How long is the flight from Montreal to London, Ontario?

    A quick flight from Montreal to London, Ontario can take about 11h 04m. WestJet provides one of the quickest options available for as low as C$ 523. The distance from Montreal to London, Ontario is about 647 km.

  • 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$ 419 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, January is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 99). Flying from Montreal to London, Ontario in August is currently the most expensive (average of C$ 215). 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
Port Stanley
Grand Bend

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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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 419AverageC$ 729FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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