Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to the United Kingdom from £176

The cheapest month to fly to United Kingdom from Montreal Pierre Elliott Trudeau Intl Airport is in May. Flight prices, which tend to average around £439, 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 May, then departing from Montreal Pierre Elliott Trudeau Intl Airport during the month November is also very affordable. Most momondo users find prices during this month for around £440.

The cheapest day to depart from Montreal Pierre Elliott Trudeau Intl Airport 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 £450. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Montreal Pierre Elliott Trudeau Intl Airport to United Kingdom for around £612.

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £519. Try not to purchase tickets in the evening because they tend to be around £529. 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 Pierre Elliott Trudeau Intl - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £531 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 Pierre Elliott Trudeau Intl Airport for as low as £485 on momondo.

There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl 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 and TAP AIR PORTUGAL are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to United Kingdom

Air Canada, Virgin Atlantic and British Airways are the top three most popular airlines that fly to United Kingdom from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 61% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 4 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 21% 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 158 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.

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 Pierre Elliott Trudeau Intl Airport and United Kingdom is 8 per day as of February 2026. The most frequent departure time is 19:00, with 100% of daily flights leaving in the evening.

The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and United Kingdom is 58 per week as of February 2026. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.