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Cheap flights from Montreal to London, ON from C$ 299

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — YXU
1 Aug — 8 Aug1
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 2 July 2026.

Thu 23/78:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Fri 24/78:40 p.m.
YXU
-
YUL
1 stop10h 25m
WestJet
Deal found 30/6C$ 630
Thu 30/78:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Tue 4/82:40 p.m.
YXU
-
YUL
2 stops9h 45m
WestJet
Deal found 1/7C$ 658
Fri 14/88:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Fri 21/82:40 p.m.
YXU
-
YUL
2 stops9h 45m
WestJet
Deal found 30/6C$ 688
Mon 10/85:45 p.m.
YUL
-
YXU
2 stops20h 05m
WestJet
Tue 18/82:40 p.m.
YXU
-
YUL
2 stops9h 45m
WestJet
Deal found 28/6C$ 692
Thu 23/78:00 p.m.
YUL
-
YXU
1 stop9h 20m
Multiple Airlines
Sat 1/86:20 p.m.
YXU
-
YUL
1 stop3h 30m
Multiple Airlines
Deal found 28/6C$ 699
Mon 20/75:30 p.m.
YUL
-
YXU
2 stops20h 20m
WestJet
Fri 24/78:40 p.m.
YXU
-
YUL
1 stop10h 25m
WestJet
Deal found 30/6C$ 722
Sun 26/78:00 p.m.
YUL
-
YXU
1 stop9h 20m
Multiple Airlines
Sun 2/82:40 p.m.
YXU
-
YUL
2 stops28h 52m
Multiple Airlines
Deal found 28/6C$ 725

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 2 July 2026.

Round-trip from

C$ 630

One-way from

C$ 299

Popular in

November

Cheapest in

October

Average price

C$ 1,073
WestJet
  • WestJet
  • 23/7-24/7
  • 2 total stops
  • 19h 45m total
  • Montreal to London
Search Deals
WestJet
  • WestJet
  • 22/7
  • 1 total stop
  • 9h 20m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 2 July 2026.
Use the filters below to find and compare flights from Montreal to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Fri 24/7

8:40 p.m.-7:05 a.m.

1 stop10h 25m

C$ 665

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Sat 1/8

6:20 p.m.-9:50 p.m.

1 stop3h 30m

C$ 699

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

7:45 p.m.-5:20 a.m.

1 stop9h 35m

London

Tue 18/8

8:40 p.m.-7:05 a.m.

1 stop10h 25m

C$ 773

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Tue 18/8

8:40 p.m.-7:05 a.m.

1 stop10h 25m

C$ 790

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

8:40 a.m.-2:52 p.m.

2 stops6h 12m

London

Fri 24/7

10:05 a.m.-3:29 p.m.

2 stops5h 24m

C$ 842

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Mon 27/7

5:55 p.m.-7:20 p.m.

3 stops25h 25m

C$ 859

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 27/7

9:45 a.m.-2:52 p.m.

2 stops5h 07m

London

Mon 3/8

10:05 a.m.-3:21 p.m.

2 stops5h 16m

C$ 874
Quickest round-trip

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 30/8

11:10 a.m.-2:50 p.m.

1 stop3h 40m

London

Sun 30/8

6:20 p.m.-9:50 p.m.

1 stop3h 30m

C$ 874

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 6/8

11:10 a.m.-2:50 p.m.

1 stop3h 40m

London

Thu 6/8

6:20 p.m.-9:50 p.m.

1 stop3h 30m

C$ 874
Cheapest one-way

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

8:00 p.m.-5:20 a.m.

1 stop9h 20m

C$ 300

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/6

Showing 1-10 of 19 resultsSorted by cheapest first
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, March is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 277). Flying from Montreal to London, Ontario in August is currently the most expensive (average of C$ 706). 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.

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 2 July 2026.
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
11,286 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.
Air Canada
7.1
Good
11,286 reviews
Air Canada
7.1
Good
11,286 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Overall

7.1

Crew

7.8

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.

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 9h 20m. WestJet provides one of the quickest options available for as low as C$ 665. 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$ 616 on this airline. Users have found that Air Canada is 28% 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, March is the cheapest month in which you can book a flight from Montreal to London, Ontario (average of C$ 277). Flying from Montreal to London, Ontario in August is currently the most expensive (average of C$ 706). 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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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 2 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 616AverageC$ 752FlexibilityNo 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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