Find flights
Flight research
Deals
British Airways Reviews

British Airways flights from Montreal to London Heathrow Airport (YMQ - LHR)

YMQ — LHR
5 May — 12 May1
1 adult

Cheapflights users flying from Montreal to London on British Airways typically fly into London Heathrow and depart from Montreal Pierre Elliott Trudeau Intl. Select your dates above for pricing.

British Airways flights from Montreal to Heathrow in 2025

Find detailed information about British Airways flights from Montreal to Heathrow. Explore the options provided by British Airways to plan your journey from Montreal to Heathrow. Data last updated 30 April 2025.

One-way from

C$ 1,075

Round-trip from

C$ 790

Popular in

December

Cheapest in

September

Average price (all airlines)

C$ 984
British Airways
  • British Airways
  • 18/8
  • Nonstop
  • 6h 40m total
  • Montreal to London
Search Deals
British Airways
  • British Airways
  • 29/5-2/6
  • Nonstop
  • 13h 50m total
  • Montreal to London
Search Deals
Highest demand for flights from Montreal to London Heathrow; 3% potential price increase.
Search Deals
Best time to find cheap flights from Montreal to London Heathrow; 2% potential price drop.
Search Deals
Average price for all Montreal to London Heathrow flights (one-way and round-trip).
Search Deals

  • How do most travelers feel about British Airways?

    When planning your YMQ-LHR trip, keep in mind that British Airways is typically rated 7.6/10. This rating comes from 1,273 reviews by Cheapflights users who have traveled with British Airways.

Find British Airways flight deals from Montreal to Heathrow

Cheapest British Airways flights from Montreal to Heathrow
Explore the most affordable British Airways flight options available from Montreal to Heathrow. Find the lowest fares with prices last updated on 30 April 2025.

Thu 29/510:05 p.m.YUL - LHR
Nonstop6h 40mBritish Airways
Mon 2/66:05 p.m.LHR - YUL
Nonstop7h 10mBritish Airways
Deal found 28/4C$ 790

Travel insights for British Airways flights from Montreal to Heathrow

Get recent, data-driven insights about British Airways flights from Montreal to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Montreal to London Heathrow Airport with British Airways?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Heathrow. Price data was last updated on 25 April 2025.

Booking with British Airways 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal 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 to London Heathrow Airport with British Airways?

Currently, the most affordable month to book a British Airways flight from Montreal to London Heathrow Airport in May, with an average price of C$ 732. Conversely, traveling with British Airways from Montreal to London Heathrow Airport in July will be the most expensive, with an average cost of C$ 1,074. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm 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.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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).

Best time to book a flight from Montreal to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Montreal with our price prediction graph.
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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Montreal to Heathrow on another airline

Consider alternative airlines that service the Heathrow area. Flight routes are based on user searches made on Cheapflights and were last updated on 30 April 2025.
Air Canada flights from Montreal to London Heathrow

See what others are saying about British Airways

Read reviews and see what other travellers are saying about their experiences with British Airways. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing British Airways for your next flight. Reviews last updated 30 April 2025.
British Airways
6.6
Okay
6,837 reviews
Check prices
Overview

Food

6.3

Boarding

6.8

Comfort

6.7

Crew

7.6

Entertainment

6.4

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.