Which airline has the best punctuality record on Montreal to London flights?

Over the past year, Thai Airways have had the lowest number of delays on this route, with just 15% of flights being delayed.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

How often are flights from Montreal to London delayed?

About 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 164 minutes.

What is the most punctual flight time for Montreal to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Consider Aegean Airlines (77%), Thai Airways (77%) or Air Canada (72%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport.

What are the most popular airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Before booking your flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport check out the most popular airlines for this route: Air Canada, British Airways or American Airlines.

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Heathrow?

Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£237+ Flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Q: How much does it cost for a return flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Airfare is below average for this route at the moment. Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights typically cost between £473 and £578 in November. The cheapest return flight price found within the last 3 days was £416 on SWISS (10 Nov-17 Nov).

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in May or November, booked 66 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Find flight deals from Pierre Elliott Trudeau Intl to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Heathrow
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 28 October 2025.

Mon 24/1116:45YUL - LHR

1 stop15h 15mSWISS

Mon 1/1209:00LHR - YUL

1 stop11h 10mSWISS

Deal found 26/10£417

Sun 30/1121:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Mon 8/1206:00LHR - YUL

1 stop19h 15mTAP AIR PORTUGAL

Deal found 27/10£422

Mon 1/1221:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Sun 7/1206:00LHR - YUL

1 stop19h 15mTAP AIR PORTUGAL

Deal found 26/10£423

Wed 12/1116:45YUL - LHR

1 stop10h 20mSWISS

Sat 15/1118:40LHR - YUL

1 stop25h 30mSWISS

Deal found 26/10£424

Fri 5/1221:45YUL - LHR

1 stop19h 55mTAP AIR PORTUGAL

Sun 7/1208:15LHR - YUL

1 stop17h 00mTAP AIR PORTUGAL

Deal found 27/10£426

Thu 13/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Mon 17/1109:00LHR - YUL

1 stop11h 10mAir Canada

Deal found 26/10£427

Sun 7/1221:45YUL - LHR

1 stop18h 50mTAP AIR PORTUGAL

Sat 13/1219:55LHR - YUL

1 stop29h 20mTAP AIR PORTUGAL

Deal found 26/10£428

Sun 30/1121:45YUL - LHR

1 stop19h 55mTAP AIR PORTUGAL

Tue 9/1218:30LHR - YUL

1 stop30h 45mTAP AIR PORTUGAL

Deal found 26/10£428

Fri 21/1121:45YUL - LHR

1 stop17h 50mMultiple Airlines

Fri 28/1109:00LHR - YUL

1 stop11h 10mMultiple Airlines

Deal found 26/10£431

Sun 7/1221:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Fri 12/1212:25LHR - YUL

1 stop12h 50mTAP AIR PORTUGAL

Deal found 27/10£433

Best flights from Pierre Elliott Trudeau Intl to Heathrow
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 October 2025.

Thu 11/1219:30YUL - LHR

Nonstop6h 40mLufthansa

Mon 15/1213:25LHR - YUL

Nonstop7h 45mLufthansa

Deal found 26/10£454

Tue 18/1120:40YUL - LHR

Nonstop6h 50mBritish Airways

Mon 1/1216:10LHR - YUL

Nonstop7h 35mBritish Airways

Deal found 26/10£456

Mon 17/1117:10YUL - LHR

2 stops14h 50mSWISS

Mon 24/1106:00LHR - YUL

1 stop14h 10mSWISS

Deal found 27/10£477

Fri 14/1109:26YUL - LHR

1 stop19h 49mDelta

Mon 24/1106:30LHR - YUL

1 stop15h 50mDelta

Deal found 27/10£485

Tue 2/1219:30YUL - LHR

Nonstop6h 40mLufthansa

Tue 9/1213:25LHR - YUL

Nonstop7h 45mLufthansa

Deal found 26/10£454

Wed 14/120:40YUL - LHR

Nonstop6h 50mBritish Airways

Sun 18/116:10LHR - YUL

Nonstop7h 35mBritish Airways

Deal found 27/10£462

Tue 11/1117:10YUL - LHR

2 stops14h 50mSWISS

Tue 18/1109:00LHR - YUL

2 stops15h 22mSWISS

Deal found 26/10£482

Thu 27/1119:10YUL - LHR

Nonstop7h 00mLufthansa

Sun 7/1213:25LHR - YUL

Nonstop7h 45mLufthansa

Deal found 27/10£454

Tue 13/120:40YUL - LHR

Nonstop6h 50mBritish Airways

Mon 19/116:10LHR - YUL

Nonstop7h 35mBritish Airways

Deal found 27/10£462

Mon 12/119:30YUL - LHR

Nonstop6h 40mLufthansa

Fri 16/113:25LHR - YUL

Nonstop7h 45mLufthansa

Deal found 27/10£458

Tue 25/1114:00YUL - LHR

1 stop13h 30mLufthansa

Tue 2/1220:15LHR - YUL

2 stops20h 30mLufthansa

Deal found 27/10£475

Thu 13/1114:00YUL - LHR

1 stop11h 30mLufthansa

Fri 21/1120:15LHR - YUL

2 stops20h 30mLufthansa

Deal found 27/10£475

Direct flights from Pierre Elliott Trudeau Intl to Heathrow
Explore direct flight options from Pierre Elliott Trudeau Intl to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 October 2025.

Thu 13/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Mon 17/1113:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 26/10£440

Thu 13/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Wed 19/1113:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 27/10£441

Wed 3/1219:30YUL - LHR

Nonstop6h 40mAir Canada

Wed 10/1213:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 27/10£444

Thu 22/119:10YUL - LHR

Nonstop7h 00mAir Canada

Mon 26/113:25LHR - YUL

Nonstop7h 40mAir Canada

Deal found 27/10£446

Sun 16/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Mon 24/1113:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 27/10£447

Fri 28/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Sun 7/1213:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 27/10£451

Mon 1/1220:40YUL - LHR

Nonstop6h 50mBritish Airways

Tue 9/1216:10LHR - YUL

Nonstop7h 35mBritish Airways

Deal found 26/10£452

Sat 29/1119:10YUL - LHR

Nonstop7h 00mMultiple Airlines

Sun 7/1213:25LHR - YUL

Nonstop7h 45mMultiple Airlines

Deal found 26/10£452

Wed 14/120:40YUL - LHR

Nonstop6h 50mMultiple Airlines

Wed 21/116:10LHR - YUL

Nonstop7h 35mMultiple Airlines

Deal found 27/10£453

Wed 19/1119:10YUL - LHR

Nonstop7h 00mMultiple Airlines

Sun 23/1113:25LHR - YUL

Nonstop7h 45mMultiple Airlines

Deal found 26/10£454

Wed 7/119:30YUL - LHR

Nonstop6h 40mAir Canada

Sat 17/113:25LHR - YUL

Nonstop7h 45mAir Canada

Deal found 26/10£455

Last-minute flights from Pierre Elliott Trudeau Intl to Heathrow
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Heathrow. Data last updated 28 October 2025 and is based on user searches.

Wed 12/1116:45YUL - LHR

1 stop10h 20mSWISS

Sat 15/1118:40LHR - YUL

1 stop25h 30mSWISS

Deal found 26/10£424

Wed 12/1119:10YUL - LHR

Nonstop7h 00mMultiple Airlines

Sat 15/1120:05LHR - YUL

1 stop24h 05mMultiple Airlines

Deal found 26/10£435

Thu 13/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Mon 17/1109:00LHR - YUL

1 stop11h 10mAir Canada

Deal found 26/10£427

Thu 13/1119:10YUL - LHR

Nonstop7h 00mAir Canada

Wed 19/1106:50LHR - YUL

1 stop9h 55mAir Canada

Deal found 27/10£434

Fri 21/1121:45YUL - LHR

1 stop17h 50mMultiple Airlines

Fri 28/1109:00LHR - YUL

1 stop11h 10mMultiple Airlines

Deal found 26/10£431

Mon 24/1116:45YUL - LHR

1 stop15h 15mSWISS

Mon 1/1209:00LHR - YUL

1 stop11h 10mSWISS

Deal found 26/10£417

Sat 29/1119:10YUL - LHR

Nonstop7h 00mMultiple Airlines

Sun 7/1209:00LHR - YUL

1 stop11h 10mMultiple Airlines

Deal found 26/10£434

Sun 30/1121:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Mon 8/1206:00LHR - YUL

1 stop19h 15mTAP AIR PORTUGAL

Deal found 27/10£422

Sun 30/1121:45YUL - LHR

1 stop14h 45mTAP AIR PORTUGAL

Sun 7/1208:15LHR - YUL

1 stop17h 00mTAP AIR PORTUGAL

Deal found 26/10£423

Sun 30/1121:45YUL - LHR

1 stop19h 55mTAP AIR PORTUGAL

Tue 9/1218:30LHR - YUL

1 stop30h 45mTAP AIR PORTUGAL

Deal found 26/10£428

One-way flights from Pierre Elliott Trudeau Intl to Heathrow
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 28 October 2025.

Sun 23/1106:45YUL - LHR

2 stops25h 05mWestJet

Deal found 27/10£237

Fri 28/1121:45YUL - LHR

1 stop16h 10mTAP AIR PORTUGAL

Deal found 27/10£239

Sun 9/1121:40YUL - LHR

1 stop11h 45mMultiple Airlines

Deal found 27/10£241

Sun 30/1106:45YUL - LHR

2 stops25h 05mMultiple Airlines

Deal found 28/10£243

Thu 15/120:10YUL - LHR

1 stop13h 15mMultiple Airlines

Deal found 26/10£245

Mon 1/1220:10YUL - LHR

1 stop13h 15mMultiple Airlines

Deal found 26/10£246

Tue 2/1219:30YUL - LHR

1 stop36h 20mWestJet

Deal found 28/10£249

Tue 13/106:45YUL - LHR

3 stops25h 05mWestJet

Deal found 27/10£251

Wed 10/1210:35YUL - LHR

2 stops21h 15mMultiple Airlines

Deal found 26/10£252

Sat 6/1206:45YUL - LHR

2 stops25h 05mMultiple Airlines

Deal found 28/10£253

Sun 7/1206:45YUL - LHR

2 stops25h 05mMultiple Airlines

Deal found 26/10£254

Tue 13/113:10YUL - LHR

1 stop18h 40mMultiple Airlines

Deal found 27/10£255

Cheap flight deals from Pierre Elliott Trudeau Intl to Heathrow

Round-trip from	£416
One-way from	£237
Popular in	December
Cheapest in	May
Average price	£509
Good round-trip deal	£493 or less
Good one-way deal	£406 or less

SWISS
10/11-17/11
2 total stops
24h 30m total
Montreal to London

Search Deals

WestJet
23/11
2 total stops
25h 05m total
Montreal to London

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£17 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.

Search Deals

Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.

Search Deals

Cheapflights Fare Finder

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

Price

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

19:30-07:10

Nonstop6h 40m

London Heathrow

Mon 15/12

13:25-16:10

Nonstop7h 45m

£454

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

19:30-07:10

Nonstop6h 40m

London Heathrow

Tue 9/12

13:25-16:10

Nonstop7h 45m

£454

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Sun 7/12

13:25-16:10

Nonstop7h 45m

£454

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

20:40-08:30

Nonstop6h 50m

London Heathrow

Mon 1/12

16:10-18:45

Nonstop7h 35m

£456

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

19:30-07:10

Nonstop6h 40m

London Heathrow

Fri 16/1

13:25-16:10

Nonstop7h 45m

£458

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

20:40-08:30

Nonstop6h 50m

London Heathrow

Sun 18/1

16:10-18:45

Nonstop7h 35m

£462

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

20:40-08:30

Nonstop6h 50m

London Heathrow

Mon 19/1

16:10-18:45

Nonstop7h 35m

£462

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

14:00-08:30

1 stop13h 30m

London Heathrow

Tue 2/12

20:15-11:45

2 stops20h 30m

£475

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

14:00-06:30

1 stop11h 30m

London Heathrow

Fri 21/11

20:15-11:45

2 stops20h 30m

£475

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 17/11

17:10-13:00

2 stops14h 50m

London Heathrow

Mon 24/11

06:00-15:10

1 stop14h 10m

£477

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 24 results

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.

Estimated return 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

Delays

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Booking 66 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, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of £377). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £539). 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?

One of the essential ways to save on airfare from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 35% on airfare.

How much does it cost for a return flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, such as American Airlines, Air Canada, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

11,033 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alison,May 2025

LHR - MAN

Gate staff were confused and passengers openly incredulous at lack of organisation and information to the extent that for a while we all believed entry to the gate would be via a coffee shop. It was embarrassing to see US passengers so derisive of the ground crew’s ineptitude.

American Airlines

7.2

Good

11,033 reviews

American Airlines

7.2

Good

11,033 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alison,May 2025

LHR - MAN

Air Canada

7.1

Good

10,370 reviews

American Airlines

7.2

Good

11,033 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alison,May 2025

LHR - MAN

British Airways

6.7

Okay

7,481 reviews

American Airlines

7.2

Good

11,033 reviews

Check prices

Reviews

1 / 20

6.0

Good

Alison,May 2025

LHR - MAN

Related info for your journey

How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
Airlines like Lufthansa and British Airways fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in about 6h 40m. The time it takes to get you to your destination is usually consistent. The distance from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is about 3239 mi. Generally, flights for this route are direct.
What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport round-trip?
Our cheapest airline available from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is Air Canada. Our recent data shows that you can find tickets from as low as £401 on this airline. Additional options worth looking into are British Airways and American Airlines, starting at £413 and £551 round-trip. These flights start at 27% lower than the current average price 3 months from now.
What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
Consider Aegean Airlines (77%), Thai Airways (77%) or Air Canada (72%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport.
What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
The cheapest flight price from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is £397. On average you can expect to pay £922. The most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), can usually be booked for £353.
Can I find deals for flights from Pierre Elliott Trudeau Intl to Heathrow that include hotel bookings?
Yes. In addition to deals on Pierre Elliott Trudeau Intl to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Pierre Elliott Trudeau Intl to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Heathrow.
Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Heathrow?
Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Heathrow 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 Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of £377). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £539). 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

Milton Keynes

Croydon

Slough

Gatwick

Hounslow

Northampton

Luton

Ilford

Wembley

Deal

Hayes

Colchester

Watford

Winchester

Chichester

Swindon

Crawley

Romford

Brentford

Ipswich

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Top 3 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£401	Average£500	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£413	Average£775	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£551	Average£608	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Pierre Elliott Trudeau Intl to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Heathrow?

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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from £237

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in May or November, booked 66 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Find flight deals from Pierre Elliott Trudeau Intl to Heathrow

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 28 October 2025.

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 28 October 2025.

Cheap flight deals from Pierre Elliott Trudeau Intl to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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.

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.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

What is the cheapest time of day to fly from YUL to LHR?

How much does it cost for a return flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

How often are flights from Montreal to London delayed?

What is the most punctual flight time for Montreal to London flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Montreal to London flights?

Reviews of airlines servicing Heathrow

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.

How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport round-trip?

What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Can I find deals for flights from Pierre Elliott Trudeau Intl to Heathrow that include hotel bookings?

How can I find direct flights from Pierre Elliott Trudeau Intl to Heathrow?

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Heathrow?

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pierre Elliott Trudeau Intl to Heathrow

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

Top 3 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

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Cheapest flights from Pierre Elliott Trudeau Intl to Heathrow
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 28 October 2025.