Cheap flights from Montreal to the United Kingdom from £161

The cheapest month to fly to United Kingdom from Montreal is in September. Flight prices, which tend to average around £434, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of September, then departing from Montreal during the month October is also very affordable. Most momondo users find prices during this month for around £442.

The cheapest day to depart from Montreal to United Kingdom is on a Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £455. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Montreal to United Kingdom for around £623.

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £506. Try not to purchase tickets in the evening because they tend to be around £561. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to United Kingdom from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £544 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Montreal for as low as £503 on momondo.

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

WestJet, Air Transat, and TAP AIR PORTUGAL are the most popular carriers operating from Montreal to United Kingdom

Air Canada, Virgin Atlantic and British Airways are the top three most popular airlines that fly to United Kingdom from Montreal according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 3 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between Montreal and United Kingdom have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

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

Thursday 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 10% of their flights experiencing any sort of delay.

15 flights are operational daily from Montreal to United Kingdom as of April 2026. The most popular departure time for this route is 22:00, with 100% of flights per day taking off in the evening.

The number of flights available between Montreal and United Kingdom is 111 per week as of April 2026. The most frequent departure day is Tue, with 16% of weekly flights leaving on this day.