$287+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Pierre Elliott Trudeau Intl to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in November or February, booked 13 days in advance, depart on a Wednesday or Sunday and return on a Thursday
Cheap flight deals from Pierre Elliott Trudeau Intl to Heathrow
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Best
Last-minute
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Cheapest flights from Pierre Elliott Trudeau Intl to HeathrowExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:10 pm -
2 stops17h 05m
Wed 11/1111:05 am -
2 stops50h 27m
Deal found 10/25![United Airlines logo]()
$637
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:30 pm -
2 stops18h 00m
Tue 12/158:50 pm -
1 stop20h 40m
Deal found 10/25![Multiple Airlines logo]()
$640
This Air Transat deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:30 pm -
1 stop20h 35m
Tue 12/18:50 pm -
1 stop20h 40m
Deal found 10/24![Multiple Airlines logo]()
$644
This Air Transat deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:30 pm -
1 stop33h 40m
Sat 11/289:55 am -
1 stop31h 35m
Deal found 10/22![Multiple Airlines logo]()
$650
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm -
1 stop10h 25m
Wed 11/2510:00 am -
1 stop12h 15m
Deal found 10/21![Delta logo]()
$657
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:50 pm -
1 stop13h 55m
Wed 11/1110:00 am -
1 stop12h 15m
Deal found 10/21![Delta logo]()
$659
This KLM deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:50 pm -
1 stop13h 55m
Wed 11/1110:00 am -
1 stop12h 15m
Deal found 10/21![KLM logo]()
$660
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:15 pm -
1 stop10h 30m
Fri 12/48:40 am -
1 stop13h 35m
Deal found 10/23![Delta logo]()
$663
Best flights from Pierre Elliott Trudeau Intl to HeathrowDiscover carefully curated flight deals from Pierre Elliott Trudeau Intl to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:00 pm -
1 stop18h 35m
Fri 12/46:30 am -
1 stop15h 45m
Deal found 10/22![Virgin Atlantic logo]()
$658
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm -
1 stop10h 25m
Wed 11/2510:00 am -
1 stop12h 15m
Deal found 10/22![Delta logo]()
$658
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:05 pm -
1 stop13h 40m
Mon 11/308:55 am -
1 stop11h 25m
Deal found 10/21![Delta logo]()
$664
This Virgin Atlantic deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:05 pm -
1 stop16h 30m
Sat 11/148:55 am -
1 stop11h 25m
Deal found 10/25![Virgin Atlantic logo]()
$667
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
2 stops23h 30m
Mon 12/76:30 am -
1 stop15h 45m
Deal found 10/25![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop20h 45m
Mon 12/1411:30 am -
2 stops17h 03m
Deal found 10/21![Delta logo]()
$691
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:50 pm -
2 stops16h 00m
Mon 11/168:40 am -
1 stop13h 35m
Deal found 10/23![Delta logo]()
$691
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:50 pm -
1 stop13h 55m
Mon 12/1411:30 am -
2 stops17h 03m
Deal found 10/22![Delta logo]()
$693
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:05 pm -
1 stop13h 40m
Sun 12/66:20 am -
2 stops22h 13m
Deal found 10/25![Delta logo]()
$695
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:05 pm -
1 stop10h 25m
Sat 11/1411:30 am -
2 stops16h 57m
Deal found 10/25![Delta logo]()
$696
Last-minute flights from Pierre Elliott Trudeau Intl to HeathrowDiscover last-minute flight deals from Pierre Elliott Trudeau Intl to Heathrow. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Heathrow. Data last updated October 26, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:50 pm -
1 stop13h 55m
Wed 11/2511:45 am -
1 stop10h 30m
Deal found 10/22![KLM logo]()
$660
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:50 pm -
1 stop13h 55m
Wed 11/1110:00 am -
1 stop12h 15m
Deal found 10/21![Delta logo]()
$659
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:10 pm -
2 stops17h 05m
Wed 11/1111:05 am -
2 stops50h 27m
Deal found 10/25![United Airlines logo]()
$637
This Virgin Atlantic deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:05 pm -
1 stop16h 30m
Tue 11/176:20 am -
1 stop10h 55m
Deal found 10/21![Virgin Atlantic logo]()
$664
This Air Transat deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:30 pm -
1 stop20h 35m
Tue 12/18:50 pm -
1 stop20h 40m
Deal found 10/24![Multiple Airlines logo]()
$644
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 pm -
1 stop10h 25m
Wed 11/2510:00 am -
1 stop12h 15m
Deal found 10/21![Delta logo]()
$657
This Air Transat deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:30 pm -
1 stop33h 40m
Sat 11/289:55 am -
1 stop31h 35m
Deal found 10/22![Multiple Airlines logo]()
$650
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:15 pm -
1 stop10h 30m
Fri 12/48:40 am -
1 stop13h 35m
Deal found 10/23![Delta logo]()
$663
One-way flights from Pierre Elliott Trudeau Intl to HeathrowSearch for one-way flight options from Pierre Elliott Trudeau Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Pierre Elliott Trudeau Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/39:45 pm -
1 stop18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$287
This Booking.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/179:45 pm -
1 stop16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![TAP AIR PORTUGAL logo]()
$289
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1210:45 pm -
1 stop30h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$295
This Justfly.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:45 pm -
1 stop19h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:45 pm -
1 stop14h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:40 pm -
1 stop36h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:45 am -
2 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:45 am -
2 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:45 am -
2 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:40 pm -
1 stop36h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$355
Find flight deals from Pierre Elliott Trudeau Intl to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Heathrow (LHR). 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $630 (United Airlines) |
One-way from | $287 (Booking.com) |
Popular in | December |
Cheapest in | November |
Average price | $745 |
Good round-trip deal | $748 or less |
Good one-way deal | $439 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Heathrow 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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sun 12/6
9:40 pm-2:25 pm
1 stop11h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$343
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Tue 11/10
6:30 pm-8:05 pm
1 stop20h 35m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$368
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sun 11/8
8:15 pm-2:45 pm
2 stops37h 30m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$372
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sun 2/28
9:40 pm-2:25 pm
1 stop11h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$388
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sat 11/7
7:35 pm-2:45 pm
2 stops38h 10m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$392
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sat 11/21
6:30 pm-9:10 am
1 stop33h 40m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$395
Quickest round-trip
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 11/2
9:15 pm-9:05 am
Nonstop6h 50m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$423
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sun 11/22
9:15 pm-9:05 am
Nonstop6h 50m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$431
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Fri 11/27
9:05 pm-8:55 am
Nonstop6h 50m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$431
MontrealLondon
YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow
YULLHR
Montreal Pierre Elliott Trudeau Intl
Thu 1/7
9:15 pm-9:05 am
Nonstop6h 50m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$431
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Pierre Elliott Trudeau Intl to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to Heathrow in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Pierre Elliott Trudeau Intl to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pierre Elliott Trudeau Intl with our price prediction graph.
YUL-LHR
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 Pierre Elliott Trudeau Intl Airport to London Heathrow Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
Booking 12 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of $700). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in December is currently the most expensive (average of $911). 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 YUL to LHR?
Find hourly flight availability from Pierre Elliott Trudeau Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 26, 2026.
When flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Montreal to London delayed?
About 25% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 157 minutes.
What is the most punctual flight time for Montreal to London flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Montreal to London flights?
Over the last year, British Airways have had the lowest number of delays on this route, with just 25% of flights being delayed.
The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport trip
Our travel experts
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated October 26, 2026.
Read reviews from past customers who have flown TAP AIR PORTUGAL,Air Canada, andAmerican Airlines from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Boarding
7.1
Crew
7.8
Overall
7.2
Food
6.3
Comfort
7.2
Entertainment
6.4
Reviews
1 / 20
4.0
OkaySergio,Sep 2026
IBZ - LIS
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 5 airlines flying from Pierre Elliott Trudeau Intl to Heathrow
Discover the top 5 airlines that operate flights from Pierre Elliott Trudeau Intl to Heathrow. 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 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$826 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$596 | Average$803 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$632 | Average$816 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$636 | Average$790 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$654 | Average$859 | FlexibilityNo cancel fee | On-time70% |