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Cheap flights from London, ON to Montreal from C$ 305

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — YMQ
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Montreal

Enter your travel dates to find the best prices.

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 7 July 2026.

Fri 14/88:40 p.m.
YXU
-
YUL
1 stop10h 25m
WestJet
Fri 21/88:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Deal found 2/7C$ 585
Sun 30/82:40 p.m.
YXU
-
YUL
2 stops9h 45m
WestJet
Sat 12/98:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Deal found 7/7C$ 689
Fri 21/88:40 p.m.
YXU
-
YUL
1 stop10h 25m
WestJet
Sun 23/88:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Deal found 3/7C$ 690
Mon 31/85:55 p.m.
YXU
-
YUL
1 stop29h 50m
WestJet
Fri 4/98:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Deal found 7/7C$ 730
Fri 30/103:25 p.m.
YXU
-
YUL
2 stops5h 28m
Air Canada
Fri 6/1111:10 a.m.
YUL
-
YXU
1 stop3h 37m
Air Canada
Deal found 3/7C$ 736
Sat 8/85:55 p.m.
YXU
-
YUL
1 stop29h 50m
WestJet
Mon 10/86:45 a.m.
YUL
-
YXU
2 stops31h 05m
WestJet
Deal found 6/7C$ 757
Wed 26/85:55 p.m.
YXU
-
YUL
1 stop29h 50m
WestJet
Sat 29/85:30 p.m.
YUL
-
YXU
1 stop11h 50m
WestJet
Deal found 6/7C$ 793

Find 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 7 July 2026.

Round-trip from

C$ 689

One-way from

C$ 305

Popular in

August

Cheapest in

February

Average price

C$ 780
WestJet
  • WestJet
  • 30/8-12/9
  • 3 total stops
  • 19h 05m total
  • London to Montreal
Search Deals
WestJet
  • WestJet
  • 21/8
  • 1 total stop
  • 10h 25m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 35 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 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 7 July 2026.
Use the filters below to find and compare flights from London to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 14/8

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

1 stop10h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

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

1 stop9h 20m

C$ 585

LondonMontreal

YXU - YUL

YXUYUL

London

Sun 19/7

2:40 p.m.-12:25 a.m.

2 stops9h 45m

Montreal Pierre Elliott Trudeau Intl

Thu 23/7

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

1 stop9h 20m

C$ 814

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 21/8

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

1 stop10h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 24/8

4:15 p.m.-5:20 a.m.

2 stops13h 05m

C$ 824

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 21/8

8:40 p.m.-4:45 p.m.

2 stops20h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 23/8

6:45 a.m.-5:20 a.m.

2 stops22h 35m

C$ 841

LondonMontreal

YXU - YUL

YXUYUL

London

Wed 16/9

6:10 a.m.-11:45 p.m.

1 stop17h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

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

1 stop9h 20m

C$ 842

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 7/8

2:40 p.m.-12:25 a.m.

2 stops9h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 10/8

2:50 p.m.-5:20 a.m.

3 stops14h 30m

C$ 864
Quickest round-trip

LondonMontreal

YXU - YUL

YXUYUL

London

Thu 23/7

10:05 a.m.-3:22 p.m.

2 stops5h 17m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

8:55 a.m.-2:50 p.m.

2 stops5h 55m

C$ 869

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 31/7

2:40 p.m.-4:45 p.m.

2 stops26h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 2/8

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

1 stop9h 20m

C$ 892

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 31/7

8:40 p.m.-2:12 p.m.

1 stop17h 32m

Montreal Pierre Elliott Trudeau Intl

Sun 2/8

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

1 stop33h 20m

C$ 902
Cheapest one-way

LondonMontreal

YXU - YUL

YXUYUL

London

Fri 21/8

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

1 stop10h 25m

C$ 305

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

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

Currently, August is the cheapest month in which you can book a flight from London, Ontario to Montreal (average of C$ 365). Flying from London, Ontario to Montreal in April is currently the most expensive (average of C$ 685). 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.

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 7 July 2026.
Read through reviews of airlines operating flights from London to Montreal, 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
11,314 reviews
Check prices

Entertainment

6.8

Crew

7.8

Food

6.3

Comfort

7.1

Boarding

7.3

Overall

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,May 2026

YYJ - YUL

The pouch in front of my seat was never cleaned. The hospitality I requested wasn't there for me. Perhaps as looking at me you wouldn't think I needed it. I push myself then pay for it later. Like last night and today....... The flight had a generator problem, we had to debark the plane as there was no staff to repair it , therefore we had to wait for staff to come from Vancouver to repair it. The staff on hand though were very good at keeping us informed and making sure of any questions we had at that point. Once repaired all went well. Then just the hospitality wasn't there. When I did ask at the desk after the long walk from the plane the young person attending said baggage is just over there. Well just over there to a 30 year old and a 76 year old with mobility problems is quite different !
Air Canada
7.1
Good
11,314 reviews
Air Canada
7.1
Good
11,314 reviews
Check prices

Entertainment

6.8

Crew

7.8

Food

6.3

Comfort

7.1

Boarding

7.3

Overall

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,May 2026

YYJ - YUL

The pouch in front of my seat was never cleaned. The hospitality I requested wasn't there for me. Perhaps as looking at me you wouldn't think I needed it. I push myself then pay for it later. Like last night and today....... The flight had a generator problem, we had to debark the plane as there was no staff to repair it , therefore we had to wait for staff to come from Vancouver to repair it. The staff on hand though were very good at keeping us informed and making sure of any questions we had at that point. Once repaired all went well. Then just the hospitality wasn't there. When I did ask at the desk after the long walk from the plane the young person attending said baggage is just over there. Well just over there to a 30 year old and a 76 year old with mobility problems is quite different !

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.

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

    There are many flights that can get you from London, Ontario to Montreal in 10h 25m. Fly via WestJet to get the fastest option. The distance from London, Ontario to Montreal is about 647 km.

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

    Air Canada, at C$ 541, was found to be the cheapest airline from London, Ontario to Montreal.. Air Canada is 27% 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, August is the cheapest month in which you can book a flight from London, Ontario to Montreal (average of C$ 365). Flying from London, Ontario to Montreal in April is currently the most expensive (average of C$ 685). 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 London to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
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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 7 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 541AverageC$ 684FlexibilityNo 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.

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