Cheap flights from Ontario to London from £184

The cheapest month to fly to London Gatwick Airport from Region of Ontario is in February. Flight prices, which tend to average around £384, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in February, then you should wait until May to fly from Region of Ontario, when ticket prices are also cheap, with an average price of £413.

According to our data, Wednesday is the cheapest day to fly to London Gatwick Airport from Region of Ontario. The lowest ticket price found for a Wednesday departure recently was £479. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Region of Ontario to London Gatwick Airport on a Thursday will generally be more expensive and average around £573. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You are more likely to see cheaper flights to London Gatwick Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around £470 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Region of Ontario for as low as £406 on momondo.

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

You could potentially save up to 19% on your flight if you consider stops on a Region of Ontario to London Gatwick Airport flight.

As of March 2026, 6 flights take off from Region of Ontario and land in London Gatwick Airport each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

On average, it takes 6h 25m to fly from Region of Ontario to London Gatwick Airport if you fly out of Ottawa (the most popular airport in Region of Ontario) and into London Heathrow Airport (the most popular airport in London Gatwick Airport). If you’re flying out of Toronto and into London Heathrow Airport, then the flight time is around 8h 25m.