Cheap flights from Ontario to London from C$ 392

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Region of Ontario, with most prices found around C$ 815. If you aren’t able to travel to London Heathrow Airport during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 838.

According to our data, Sunday is the cheapest day to fly to London Heathrow Airport from Region of Ontario. The lowest ticket price found for a Sunday departure recently was C$ 1,309. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to London Heathrow Airport for around C$ 1,478.

Our data shows that the cheapest Region of Ontario to London Heathrow Airport flights are usually those with departure times in the evening. Our users have found flights to London Heathrow Airport in the evening for as low as C$ 1,365. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,405 per ticket.

Fly from Toronto Pearson Intl to London Heathrow for the best Ontario - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 989 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Region of Ontario for as low as C$ 951 on momondo.

There are 4 cabin classes available to choose from on Region of Ontario to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Lufthansa, United Airlines, and TAP AIR PORTUGAL are the most popular carriers operating from Ontario to London Heathrow

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Region of Ontario 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 London Heathrow Airport. Keep in mind that there are 17 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

54 flights are operational daily from Region of Ontario to London Heathrow Airport as of June 2026. The most popular departure time for this route is 6:00p.m., with 100% of flights per day taking off in the evening.

The number of flights available between Region of Ontario and London Heathrow Airport is 381 per week as of June 2026. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.