Cheap flights from Montreal to London from $275
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to London departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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TAP AIR PORTUGAL flights from Montreal to London Heathrow Airport
Our best TAP AIR PORTUGAL deals on Montreal to London Heathrow Airport flight tickets
Austrian Airlines flights from Montreal to London Heathrow Airport
Our best Austrian Airlines deals on Montreal to London Heathrow Airport flight tickets
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How to get the cheapest flight ticket from Montreal to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Montreal and London Heathrow Airport?
What is the cheapest month to fly to London Heathrow Airport?
The month of September is, on average, the cheapest month to fly to London Heathrow Airport from Montreal, with most prices found around $635. If you’re not able to fly to London Heathrow Airport in September, then October is your next best option. Flight prices from Montreal to London Heathrow Airport during October average around $674.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Saturday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $804. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $893.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Montreal to London Heathrow Airport in the morning for as low as $668. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $865.
What is the cheapest Montreal to London Heathrow flight route?
Fly from Montreal Pierre Elliott Trudeau Intl to London Heathrow for the best Montreal - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $745 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Montreal for as low as $673 on momondo.
What cabin class options are available on Montreal to London Heathrow flights?
There are 3 cabin classes available to choose from on Montreal to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Montreal to London Heathrow Airport flights?
You could potentially save up to 24% on your flight if you consider stops on a Montreal to London Heathrow Airport flight.
How have Montreal to London Heathrow Airport flight prices changed over time?
As of July 2025, prices for Montreal to London Heathrow Airport flights are approximately 33% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Montreal to London Heathrow?
TAP AIR PORTUGAL, Lufthansa, and SWISS are the most popular carriers operating from Montreal to London Heathrow
What airlines fly to London Heathrow Airport?
Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Montreal according to our data. Air Canada is the first choice among our users, with 54% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Montreal to London Heathrow Airport on average per day?
As of July 2025, 13 flights take off from Montreal and land in London Heathrow Airport each day. The most common flight departure time for this route is 10:00PM, with 100% of daily flights taking off in the evening.
How many flights depart from Montreal to London Heathrow Airport on average per week?
The number of flights available between Montreal and London Heathrow Airport is 96 per week as of July 2025. The most frequent departure day is Tue, with 19% of weekly flights leaving on this day.
When to book flights from Montreal to London Heathrow Airport
Cheap Montreal to London Heathrow Airport (YMQ to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Montreal to London Heathrow Airport
How far is Montreal to London Heathrow by plane?
London Heathrow is 3229.8 mi away from Montreal. By plane, this route typically takes 6h 35m.
When did momondo last update prices for flights from Montreal to London Heathrow Airport?
Prices for flights from Montreal to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal to London Heathrow Airport?
As of July 2025, there are 4 operators available to choose from for flights from Montreal to London Heathrow Airport.
How old do you have to be to fly from Montreal to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montreal to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montreal to London Heathrow Airport is Boeing 787-8 Dreamliner (46.07% of total bookings). The next most popular plane models are Airbus A321neo (24.46%), Boeing 787-9 Dreamliner (12.98%), and Airbus A330-200 (6.14%).
What is the most popular airline from Montreal to London Heathrow Airport?
Based on momondo bookings for flights between Montreal and London Heathrow Airport, the leading airline is Air Canada, making up 56% of the total bookings. Other popular airlines include Lufthansa with 19%, British Airways with 18%, and American Airlines with 7%.
Best airlines flying from Montreal to London Heathrow Airport
Compare and see reviews for airlines that fly from Montreal to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $558 | Free Cancellation | Rating 7.1 9,678 reviews | |||
| PriceFrom $589 | Free Cancellation | Rating 6.8 7,207 reviews | |||
| PriceFrom $632 | Free Cancellation | Rating 6.6 7,093 reviews | |||
| PriceFrom $690 | Free Cancellation | Rating 7.2 10,000 reviews |
American Airlines Flights From Montreal to London Heathrow Airport
Across 5 American Airlines flights from Montreal to London Heathrow Airport this week, the average price was $856, with the best American Airlines deals starting from $690 round-trip. 10,000 users have rated American Airlines on momondo, with an average score of 7.2/10.
Air Canada Flights From Montreal to London Heathrow Airport
Air Canada is also a popular choice for this route. Air Canada flight deals for Montreal to London Heathrow Airport start from as low as $558 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $749. Air Canada operates 12 flights to London Heathrow Airport from Montreal in an average week. Users have rated it 7.1/10 across 9,681 reviews.
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Why should I use momondo to find a flight deal from Montreal to London?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to London for you.
Can I find flights from Montreal to London with flexible booking policies on momondo?
Yes. All flights to London from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Montreal to London?
momondo provides multiple filters to help you find the best flight to London from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Montreal to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Montreal to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.