Find flights
When to book
Airlines
FAQs

Cheap flights from London, ON to Montreal from C$ 341

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — YMQ
8 Jul — 15 Jul1
1 adult

Cheapflights Tip: The best prices from London to Montreal are usually found in October or September, booked 41 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from London to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Montreal (YMQ). 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 3 July 2025.

Round-trip from

C$ 523

One-way from

C$ 341

Popular in

August

Cheapest in

October

Average price

C$ 694
Air Canada
  • Air Canada
  • 18/9-21/9
  • 2 total stops
  • 9h 22m total
  • London to Montreal
Air Canada
  • Air Canada
  • 15/8
  • 1 total stop
  • 3h 55m total
  • London to Montreal
Highest demand for flights based on searches. 6% potential increase in price (C$ 71 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 34 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 3 July 2025.

Thu 18/96:15 a.m.YXU - YUL
1 stop6h 05mAir Canada
Sun 21/96:00 a.m.YUL - YXU
1 stop3h 17mAir Canada
Deal found 2/7C$ 523
Mon 25/89:45 p.m.YXU - YUL
3 stops26h 58mMultiple Airlines
Wed 3/97:00 a.m.YUL - YXU
1 stop14h 00mMultiple Airlines
Deal found 2/7C$ 639
Fri 3/106:00 a.m.YXU - YUL
1 stop10h 27mWestJet
Mon 6/106:45 a.m.YUL - YXU
2 stops12h 22mWestJet
Deal found 2/7C$ 643

Cheapflights Fare Finder

Customize your flight search to find flights from London to Montreal 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 3 July 2025.
Use the filters below to find and compare flights from London to Montreal that are best for you.

Fly from

London

Fly to

Montreal

Route

Depart

Return

Price

LondonMontreal

YXU - YUL

YXUYUL

London

Thu 18/9

6:15 a.m.-12:20 p.m.

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 21/9

6:00 a.m.-9:17 a.m.

1 stop3h 17m

C$ 523

LondonMontreal

YXU - YUL

YXUYUL

London

Mon 25/8

9:45 p.m.-12:43 a.m.

3 stops26h 58m

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

7:00 a.m.-9:00 p.m.

1 stop14h 00m

C$ 639

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 3/10

6:00 a.m.-4:27 p.m.

1 stop10h 27m

Montreal Pierre Elliott Trudeau Intl

Mon 6/10

6:45 a.m.-7:07 p.m.

2 stops12h 22m

C$ 643

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 15/8

5:45 p.m.-9:40 p.m.

1 stop3h 55m

C$ 341

LondonMontreal

YXU - YUL

YXUYUL

London

Wed 16/7

9:45 p.m.-7:08 a.m.

1 stop33h 23m

C$ 429

LondonMontreal

YXU - YUL

YXUYUL

London

Tue 15/7

6:00 a.m.-12:27 a.m.

2 stops18h 27m

C$ 781

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

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 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 London to Montreal

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

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

To ensure you get the cheapest price possible for a flight from London, Ontario to Montreal, you should look to book at least 41 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, Ontario to Montreal?

Currently, October is the cheapest month in which you can book a flight from London, Ontario to Montreal (average of C$ 241). Flying from London, Ontario to Montreal in April is currently the most expensive (average of C$ 316). 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 YXU 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 3 July 2025.

A simple way to save on the total cost of your ticket is to fly from London, Ontario to Montreal at noon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the afternoon.

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

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. 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 Montreal. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from London to Montreal, such as WestJet and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.1

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Crew

7.9

Reviews

1 / 20
4.0
Okay

Kim,May 2025

YEG - YYJ

Some of the crew weren't the most helpful or pleasant.

Comfort

7.1

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Crew

7.9

Reviews

1 / 20
4.0
Okay

Kim,May 2025

YEG - YYJ

Some of the crew weren't the most helpful or pleasant.

Comfort

7.1

Entertainment

6.1

Boarding

7.4

Food

6.2

Overall

7.2

Crew

7.9

Reviews

1 / 20
4.0
Okay

Kim,May 2025

YEG - YYJ

Some of the crew weren't the most helpful or pleasant.

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

    If you book a flight to Montreal from London, you will be flying from London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London. There are 0 flights from London to Montreal per day from 1 airline.

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

    Air Canada, at C$ 523, was found to be the cheapest airline from London, Ontario to Montreal. An alternate airline flying to your destination would be WestJet. Air Canada is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 vacation 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, Ontario to Montreal?

    Currently, October is the cheapest month in which you can book a flight from London, Ontario to Montreal (average of C$ 241). Flying from London, Ontario to Montreal in April is currently the most expensive (average of C$ 316). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Montreal

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to Montreal

Discover the top airline that operate flights from London to Montreal. 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 425AverageC$ 726FlexibilityNo 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 London to Montreal?

Cheapflights makes it easy to find London to Montreal 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 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?

Yes, we can. To see specific flights from London to Montreal with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for London to Montreal flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.