Cheap flights from Montreal to London from £231
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 27/7. 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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British Airways flights from Montreal to London Heathrow Airport
Our best British Airways deals on Montreal to London Heathrow Airport flight tickets
Air Canada flights from Montreal to London Heathrow Airport
Our best Air Canada 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?
In general, September is the cheapest month to fly from Montreal to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £461. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Montreal averaging around £496.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from Montreal is on a Sunday. momondo users have found tickets for Sunday departures for as low as £479. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £624.
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 afternoon. momondo users have found flights departing from Montreal to London Heathrow Airport in the afternoon for as low as £544. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £591 on average. Flights to London Heathrow Airport from Montreal in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
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 11 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £548 when searching 11 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 £495 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?
No. A direct flight is the cheapest option for a flight between Montreal to London Heathrow Airport.
How have Montreal to London Heathrow Airport flight prices changed over time?
As of June 2025, prices for Montreal to London Heathrow Airport flights are approximately 44% more expensive 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, WestJet, and Aer Lingus are the most popular carriers operating from Montreal to London Heathrow
Which airlines fly to London Heathrow Airport?
Air Canada, British Airways and Finnair 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 59% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 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?
The number of flights available between Montreal and London Heathrow Airport is 8 per day as of June 2025. The most frequent departure time is 22:00, with 100% of daily flights leaving in the evening.
How many flights depart from Montreal to London Heathrow Airport on average per week?
As of June 2025, 60 flights take off from Montreal and land in London Heathrow Airport each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off 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?
A flight from Montreal to London Heathrow will travel around 3229.8 mi. A reasonable flight in good conditions will take 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 refresh daily.
How many operators does momondo search for flights from Montreal to London Heathrow Airport?
As of June 2025, there are 3 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?
momondo data reveals that the most frequently booked plane model on the route from Montreal to London Heathrow Airport is Boeing 787-8 Dreamliner, representing 46.78% of all bookings. The subsequent popular models are Airbus A321neo at 22.95%, Boeing 787-9 Dreamliner at 12.77%, and Airbus A330-200 at 6.39%.
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 72% of the total bookings. Other popular airlines include British Airways with 28%.
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 £399 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom £409 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £588 | Free Cancellation | Rating 7.6 1,290 reviews |
Finnair Flights From Montreal to London Heathrow Airport
Finnair operates around 4 flights from Montreal to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £835, but momondo users have found Finnair deals from Montreal to London Heathrow Airport from as low as £799 round-trip. Finnair has been scored 7.6/10 in 1,290 reviews.
Air Canada Flights From Montreal to London Heathrow Airport
£543 is the best Air Canada flight deal from Montreal to London Heathrow Airport found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to £689, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 9,531 user reviews) flies into London Heathrow Airport from Montreal 11 times in an average week so prices can vary.
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Why should I use momondo to find a flight deal from Montreal to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Montreal.
Can I find flights from Montreal to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London from Montreal which offer a flexible booking policy as well as other useful filters and features.
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?
Yes. momondo can track prices for Montreal to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.