Cheap flights from Montreal to London from £251

The cheapest month to fly to London Gatwick Airport from Montreal is in December. Flight prices, which tend to average around £257, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in December, then you should wait until July to fly from Montreal, when ticket prices are also cheap, with an average price of £307.

According to our data, Sunday is the cheapest day to fly to London Gatwick Airport from Montreal. The lowest ticket price found for a Sunday departure recently was £426. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Montreal to London Gatwick Airport on a Tuesday will generally be more expensive and average around £956. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Fly from Montreal Pierre Elliott Trudeau Intl to London Gatwick for the best Montreal - London Gatwick flight prices

You are more likely to see cheaper flights to London Gatwick Airport from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around £472 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Montreal for as low as £331 on momondo.

There are 3 cabin classes available to choose from on Montreal to London Gatwick Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Montreal to London Gatwick Airport.

Historically, on average around 7% of flights between Montreal and London have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Air Transat have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

The number of flights available between Montreal and London Gatwick Airport is 1 per day as of June 2026. The most frequent departure time is 22:00, with 100% of daily flights leaving in the evening.

As of June 2026, 10 flights take off from Montreal and land in London Gatwick Airport each week. The most common flight departure day for this route is Tue, with 20% of weekly flights taking off on this day.