Popular airlines to Ontario
WestJet
Air Canada
Porter Airlines
Air Transat
American Airlines
Delta
United
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Cheap round-trip flights to Ontario
Prices were available within the past 7 days and start at £294 for one-way flights and £403 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airports in Ontario
Prices were available within the past 7 days. Prices and availability are subject to change.
Trending flights to Ontario
These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.
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Top tips for booking flights to Ontario from UK
Get ready to fly to Ontario
Prepare your luggage and book your flights to Ontario with Expedia. We offer a seamless flight booking experience, with a wide range of Ontario plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Ontario in 2026, we are always available to assist you. Book your flights to Ontario today and let the adventure begin!
Find the best tickets to Ontario
To find some of the best tickets to Ontario in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Ontario or last-minute flights to Ontario, you can filter and sort your search results, making it easy to find the ideal flight to Ontario.
Airlines fly to Ontario
There are 20 different airlines that fly to Ontario including some of the most trusted names in the business. To book flights to Ontario with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Ontario plane tickets.
Find the cheapest flights to Ontario
By booking early you may find some of the best deals for Ontario flights from the UK, including Ontario direct flights. You can usually find affordable and cheap flights to Ontario, whether one-way from £294 or round-trip from £403, with Expedia if you book your trip far enough in advance.
Find the best airports for cheap flights to Ontario
Try searching for different Ontario airports with Expedia to find some of the cheapest flights to Ontario. Flights from London (LHR) to Toronto (YYZ) usually have the lowest price from £294.
Why book your flights to Ontario with Expedia
Expedia offers great deals on Ontario air fares from £294 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Ontario from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.
*Prices and availability are subject to change. Additional terms apply.
Travel information
Ontario Flights Information
Airlines serving | TAP Portugal, Aer Lingus, Swiss International Air Lines, Air Canada, Austrian Airlines, Lufthansa, Icelandair, Finnair, British Airways, American Airlines, KLM, Air France, Virgin Atlantic, Brussels Airlines |
|---|---|
Roundtrip price | from £403 |
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