$352 Find Cheap Flights from London to Ontario

In the last 3 days, the lowest price for a flight from London to Ontario was $352 for a one-way ticket and $561 for a round-trip.

A passport is required to fly from London to Ontario.

London is served by 2 major airports and there is only 1 main airport in Ontario. You will leave London from one of these airports: London Gatwick or London Heathrow. You will be arriving at Ontario.

We unfortunately don’t have that data for this specific route.

Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between London and Ontario, with oneworld being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Ontario.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from London is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to London with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.