Cheap Flights from Montreal (YMQA) to London Heathrow (LHR)

Compare Montreal to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Montreal to London Heathrow Airport

Looking for a cheap last-minute deal or the best return flight from Montreal to London Heathrow Airport? If you want to travel next month, return fares start from £455. Find the lowest prices on one-way and return tickets right here.

London.£387 per passenger.Departing Wed, 17 Jun, returning Mon, 22 Jun.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Wed, 17 Jun, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Mon, 22 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £387, select.

London.£388 per passenger.Departing Sun, 15 Mar, returning Fri, 5 Jun.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Sun, 15 Mar, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Fri, 5 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £388, select.

London.£389 per passenger.Departing Wed, 27 May, returning Wed, 3 Jun.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Wed, 27 May, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Wed, 3 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £389, select.

London.£416 per passenger.Departing Fri, 8 May, returning Tue, 12 May.Return flight with French Bee and Vueling Airlines.Outbound indirect flight with French Bee, departs from Montreal Pierre Elliott Trudeau on Fri, 8 May, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 12 May, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £416, select.

London.£455 per passenger.Departing Mon, 6 Apr, returning Mon, 20 Apr.Return flight with TAP Air Portugal and Aer Lingus.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Mon, 6 Apr, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Mon, 20 Apr, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £455, select.

London.£486 per passenger.Departing Mon, 18 May, returning Fri, 23 Oct.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Mon, 18 May, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Fri, 23 Oct, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £486, select.

London.£487 per passenger.Departing Tue, 6 Oct, returning Sat, 10 Oct.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Tue, 6 Oct, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Sat, 10 Oct, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £487, select.

London.£487 per passenger.Departing Wed, 23 Sep, returning Wed, 7 Oct.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Wed, 23 Sep, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Wed, 7 Oct, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £487, select.

London.£488 per passenger.Departing Wed, 16 Sep, returning Wed, 30 Sep.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Wed, 16 Sep, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Wed, 30 Sep, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £488, select.

London.£488 per passenger.Departing Sat, 9 May, returning Sun, 17 May.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 9 May, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Sun, 17 May, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £488, select.

London.£492 per passenger.Departing Wed, 15 Apr, returning Mon, 4 May.Return flight with French Bee and British Airways.Outbound indirect flight with French Bee, departs from Montreal Pierre Elliott Trudeau on Wed, 15 Apr, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Mon, 4 May, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £492, select.

London.£493 per passenger.Departing Mon, 1 Jun, returning Sat, 6 Jun.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Mon, 1 Jun, arriving in London Heathrow.Inbound direct flight with Air Canada departs from London Heathrow on Sat, 6 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £493, select.

London.£503 per passenger.Departing Tue, 24 Mar, returning Tue, 31 Mar.Return flight with Air Transat and British Airways.Outbound indirect flight with Air Transat, departs from Montreal Pierre Elliott Trudeau on Tue, 24 Mar, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Tue, 31 Mar, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £503, select.

London.£505 per passenger.Departing Wed, 19 Aug, returning Thu, 10 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Wed, 19 Aug, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Thu, 10 Sep, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £505, select.

London.£506 per passenger.Departing Mon, 16 Mar, returning Tue, 14 Apr.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Mon, 16 Mar, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Tue, 14 Apr, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £506, select.

London.£506 per passenger.Departing Wed, 14 Oct, returning Fri, 6 Nov.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Montreal Pierre Elliott Trudeau on Wed, 14 Oct, arriving in London Heathrow.Inbound indirect flight with TAP Air Portugal, departs from London Heathrow on Fri, 6 Nov, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From £506, select.

Find the cheapest month to fly from Montreal to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to London Heathrow flights are currently cheapest in June.

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Direct flights from Montreal to London Heathrow

Montreal to London Heathrow: Alternative routes

Compare routes from Montreal to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Montreal to London: Flight information

The things to know before you go.

Cheapest flight found	£387
Cheapest month to fly	June
Average flight time	6 hrs, 50 mins
Most popular airline	United
Average flights per week	260

Finding cheap flights from Montreal to London Heathrow: Frequently asked questions

How much are return flights from Montreal to London Heathrow?

The best price we found for a return flight from Montreal to London Heathrow is £387. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Montreal to London Heathrow?

6 hours and 50 minutes is the average flight time from Montreal to London Heathrow.

Which airlines fly direct from Montreal to London Heathrow?

United, Lufthansa and MEA fly direct from Montreal to London Heathrow.

How many flights are there a week from Montreal to London Heathrow?

As of March 2026, there are 130 flights per week flying from Montreal to London Heathrow.

When is the cheapest time to fly from Montreal to London Heathrow?

The cheapest month to fly from Montreal to London Heathrow is usually June.

Which upcoming date is cheapest to fly from Montreal to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to London Heathrow Airport on Wednesday, 17 June 2026.

Can I get a direct flight from Montreal to London Heathrow Airport?

Yes – the average flight time is 6 hours and 50 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Montreal to London Heathrow Airport (LHR): What you need to know

Planning your trip begins with working out where you'll fly out of in Montreal. Montreal-Trudeau International Airport (YUL) is the city's main base, so check out your options for reserving a flight from Montreal to London Heathrow Airport (LHR) jetting off from here.
Expect to be in the air for 6 hours 50 minutes. That's the average duration of a direct Montreal to London Heathrow Airport flight.
London Heathrow Airport is located in London. The city operates on the UTC+0 timezone and is five hours ahead of Montreal.
Montreal-Trudeau International Airport (YUL) to London Heathrow Airport (LHR) is the most popular route. There are 17 direct weekly flights to pick from. If you have things to do before heading off, take the last flight with Air Canada at 10:25pm. Opt for the first YUL to LHR departure operated by Air Canada at 6:40pm if you'd rather not wait around.
Give yourself enough time to get on your flight from Montreal to LHR. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.
Head to the airport even earlier during popular months like July. Aim for two hours before a domestic departure and four hours ahead of international journeys. After checking in, you can use any extra time to grab something to eat or simply relax.

Airports in Montreal

Montreal-Trudeau International Airport (YUL)

Get to your destination in one go from Montreal-Trudeau International Airport (YUL). Nonstop flights from Montreal to London Heathrow Airport (LHR) are available from here.
You can travel on a direct flight from Montreal to London Heathrow Airport with Air Canada. This popular carrier operates services from YUL.
The preferred airline for passengers flying between YUL and LHR is Air Canada.
Among carriers operating on this route, British Airways has the best track record for timely arrivals.
Travelling from central Montreal to YUL takes around 45 minutes on public transport. If you drive, ride-share or grab a taxi, you'll cover the 19 kms (12 miles) in 25 minutes or so, depending on traffic.
Want a leisurely start to your journey? Stay near Montreal-Trudeau International Airport. Whether you've booked an early flight from Montreal to London Heathrow Airport or prefer not to rush, these hotels offer the perfect solution:
Of the departures from Montreal-Trudeau International Airport, 67% arrive on time at their destination.
YUL is located at 975 Romeo Vachon Street North.

Montreal Metropolitan Airport (YHU)

YHU is about 23 kms (14 miles) from central Montreal. It takes 25 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 1 hour.
Want to treat yourself to an extra night away before boarding your Montreal to LHR flight? Unwind in a hotel near Montreal Metropolitan Airport before your holiday officially begins. These stays are expecting you:

About London Heathrow Airport (LHR)

Book a hotel close to LHR if you're catching a late flight from Montreal to London Heathrow Airport. Select one of these accommodation options and be in bed sooner:
Lock in the best rate by reserving your ride around one week before your Montreal to London Heathrow Airport flight.

Getting from London Heathrow Airport (LHR) to central London

Central London is around 24 kms (15 miles) from London Heathrow Airport and takes about 45 minutes to reach by car. See what your options are for heading into the city, whether that's with a car hire, taxi or ride-share.
If you're taking public transport, expect a journey of roughly 25 minutes.

How to find the cheapest flights from Montreal to London Heathrow Airport (LHR)

At the moment, £212 is the lowest price we've found for a one-way ticket from Montreal to London Heathrow Airport. The cheapest price for a return flight is £387. Remember fares may change due to demand at the time of booking.
Lock in cheap flights from Montreal to LHR by booking one month ahead. According to our research, that's the sweet spot for landing a bargain.
Plan your trip for June. That's the best month for scoring the biggest deals on Montreal to London Heathrow Airport tickets. If you're flexible with your dates, use the 'Whole month' tool to find the lowest price across each month.
Finding a cheap plane ticket from Montreal to LHR is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as the price has dropped.
Tailor your travel plans using filters. Choose your departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Montreal to London Heathrow Airport.

The best time to fly from Montreal to London Heathrow Airport (LHR)

July is when most people book flights from Montreal to London Heathrow Airport (LHR). Visit London in January if you'd rather be there when it's quieter.
Book a Montreal to LHR plane ticket departing in July if you're eager to explore the city during its warmest month. You can expect temperatures in London to range from 11ºC to 26ºC.
If you like travelling in cooler conditions, search for a cheap ticket from Montreal to London Heathrow Airport in January when temperatures are between 0ºC and 9ºC.

More about London

When it comes to searching for somewhere to lay your head, you'll find the best places to stay in London right here. Check out these options once you've booked your flight from Montreal to London Heathrow Airport:
You'll find loads of terrific things to do in London when you're ready to see the sights. Kick off your itinerary at The British Museum followed by Westminster Abbey and Big Ben.

Explore more of the United Kingdom

London is easy to fall in love with, but there are so many other corners of the United Kingdom waiting to be discovered. About 257 kms (160 miles) northwest of London, a trip to Manchester will keep you busy. Start with leading attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
Around 153 kms (95 miles) northwest of London, Birmingham is another favourite stop in the United Kingdom. Get a taste of what this destination has to offer at Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.