Cheap Flights Montreal to London from CAD 422

Flight FAQs

• Which airlines offer the cheapest flights from Montreal (YMQ) to London (LON)?

  Based on Trip.com data, French Bee Airlines offers one-way fares as low as CAD 422 on Cheapest nonstop routes (e.g. YUL to SEN on Tue, Jul 28), while Air Transat offers Cheapest nonstop round-trips from CAD 721 departing on Fri, Jul 3 and returning on Thu, Jul 9.

• Which airlines offer direct flights from Montreal to London?

  At the moment, you can catch a direct flight from Montreal to London with the following airlines, including: Air Transat British Airways Air Canada Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is the flight from Montreal (YMQ) to London (LON)?

  It takes about 6 hours 48 minutes to fly from Montreal (YMQ) to London (LON).

• When is the best time to book flights from Montreal to London?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Montreal to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Montreal to London?

  Based on Trip.com data in the past 4 weeks, there is 22 flight per week flying from Montreal to London. You can check the weekly schedule for popular airlines on this route below: Air Canada: S/M/T/W/T/F/S -- AC864 (23:21) British Airways: S/M/T/W/T/F/S -- BA094 (22:21)

• How can I find the best deals on flights from Montreal to London?

  To find best deals on flights from Montreal to London, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jul 28, with one-way flights priced at just CAD 422.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Transat.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for London travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Montreal to London to get the best price?

  The cheapest months to fly from Montreal to London is October, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Montreal to London?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Montreal to London on June 18, 2026 with Air Transat, with prices starting at CAD 721.

• Which airports can I fly through when travelling to London from Montreal?

  You can land at any one of the following hubs in London, with Montréal-Pierre Elliott Trudeau International Airport to Heathrow Airport (YUL-LHR) is by far the most common option on this route: London City Airport (LCY) London Gatwick Airport (LGW) Heathrow Airport (LHR) London Luton Airport (LTN) London Southend Airport (SEN) London Stansted Airport (STN).

• What is the time difference between Montreal and London?

  The time difference between London and Montreal is 5h.

• How can I change or cancel my flight ticket from Montreal to London?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.