Cheap flights from London Heathrow Airport to Ontario from £206

In general, September is the cheapest month to fly from London Heathrow Airport to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £381. If you aren’t able to travel to Region of Ontario during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £385.

The cheapest day to depart from London Heathrow Airport to Region of Ontario is on a Thursday when prices can be found for as low as £502. Flights from London Heathrow Airport to Region of Ontario on a Monday will generally be more expensive and average around £538. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest London Heathrow Airport to Region of Ontario flights are usually those with departure times at midday. Our users have found flights to Region of Ontario at midday for as low as £492. In the afternoon is when there is more demand to fly to Region of Ontario, so prices are often more expensive at around £541 per ticket.

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

You are more likely to see cheaper flights to Region of Ontario from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around £454 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from London Heathrow Airport for as low as £412 on momondo.

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

Icelandair, TAP AIR PORTUGAL, and WestJet are the most popular carriers operating from London Heathrow to Ontario

Air Canada, Lufthansa and Virgin Atlantic are the top three most popular airlines that fly to Region of Ontario from London Heathrow Airport according to our data. Air Canada is the first choice among our users, with 69% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 16 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 45 flights per day flying from London Heathrow Airport to Region of Ontario. The most common time of day flights depart is 11:00, with 51% of flights taking off in the afternoon.

As of February 2026, there are 315 flights per week flying from London Heathrow Airport to Region of Ontario. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.