Cheap flights from Quebec to London from £243

In general, November is the cheapest month to fly from Quebec to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £480. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Quebec averaging around £501.

On average, the least expensive day to fly to London Heathrow Airport from Quebec is on a Sunday. momondo users have found tickets for Sunday departures for as low as £463. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £718.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Quebec to London Heathrow Airport in the afternoon for as low as £513. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £568 on average. Flights to London Heathrow Airport from Quebec in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from Quebec when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £548 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Quebec for as low as £507 on momondo.

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

As of March 2026, there are 17 flights per day flying from Quebec to London Heathrow Airport. The most common time of day flights depart is 22:00, with 100% of flights taking off in the evening.

As of March 2026, 121 flights take off from Quebec and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.