How does KAYAK find such low prices on flights from Ontario to London?

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 Ontario to London. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?

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

What is the Hacker Fare option on flights from Ontario to London?

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 London with an airline and back to Ontario with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

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 London from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

C$ 338 CHEAP FLIGHTS from Ontario to London

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Cheap Flights from Ontario to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to London

Mon, 10 Nov - Wed, 10 Dec

7:40 p.m. - 7:30 p.m.YYZ-LHR

18h 50m1 stop

12:15 p.m. - 6:15 p.m.LHR-YYZ

11h 00m1 stop

C$ 733Icelandair

Find Deal

Thu, 12 Feb - Tue, 17 Feb

7:40 p.m. - 7:30 p.m.YYZ-LHR

18h 50m1 stop

8:35 p.m. - 6:15 p.m.LHR-YYZ

26h 40m1 stop

C$ 734Icelandair

Find Deal

Thu, 8 Jan - Thu, 29 Jan

9:35 p.m. - 9:45 a.m.YYZ-LGW

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW-YYZ

8h 20mdirect

C$ 736Air Transat

Find Deal

Tue, 25 Nov - Tue, 2 Dec

5:25 p.m. - 9:45 a.m.YYZ-LTN

11h 20m1 stop

9:00 a.m. - 3:55 p.m.LTN-YYZ

11h 55m1 stop

C$ 736Multiple Airlines

Find Deal

Fri, 7 Nov - Mon, 17 Nov

7:35 p.m. - 4:15 p.m.YYZ-LTN

15h 40m1 stop

6:00 a.m. - 11:15 a.m.LTN-YYZ

10h 15m1 stop

C$ 737Multiple Airlines

Find Deal

Mon, 12 Jan - Fri, 23 Jan

9:35 p.m. - 9:45 a.m.YYZ-LGW

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW-YYZ

8h 20mdirect

C$ 739Air Transat

Find Deal

Wed, 5 Nov - Wed, 19 Nov

10:45 p.m. - 3:30 p.m.YYZ-LHR

11h 45m1 stop

8:15 a.m. - 9:15 p.m.LHR-YYZ

18h 00m1 stop

C$ 740TAP AIR PORTUGAL

Find Deal

Mon, 1 Dec - Sun, 11 Jan

10:45 p.m. - 3:45 p.m.YYZ-LGW

12h 00m1 stop

9:25 p.m. - 9:15 p.m.LGW-YYZ

28h 50m2 stops

C$ 740TAP AIR PORTUGAL

Find Deal

Tue, 27 Jan - Tue, 10 Mar

10:15 a.m. - 9:45 a.m.YUL-LGW

18h 30m1 stop

11:40 a.m. - 12:35 a.m.LGW-YUL

16h 55m1 stop

C$ 769Porter Airlines

Find Deal

Mon, 8 Dec - Mon, 12 Jan

5:25 p.m. - 9:45 a.m.YUL-LGW

11h 20m1 stop

11:40 a.m. - 10:10 p.m.LGW-YUL

15h 30m1 stop

C$ 771Porter Airlines

Find Deal

Cheapest round-trip

C$ 733

Typical prices: C$ 889-C$ 1,343

Icelandair

Mon 10/11Wed 10/12

YYZ - LHR • 1 stop

Cheapest direct flights

C$ 736

Typical prices: C$ 694-C$ 792

Air Transat

Thu 8/1Thu 29/1

YYZ - LGW • Direct

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KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to London!

Useful Info

Low season	November
High season	July
Cheapest flight	C$ 338

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly (2% more expensive on average)

Flight from Toronto Pearson Airport to London Heathrow Airport

CFlew with Air CanadaYYZ-LHRFeb 2025

Flying from Toronto to London is a long-haul journey, but with the right preparation, it can be a smooth and enjoyable experience. Here are some tips to make your trip more comfortable: Choose the Right Flight – If possible, book an overnight flight (a "red-eye"). This allows you to sleep on the plane and arrive in London in the morning, helping with jet lag. Pack Smart – London’s weather can be unpredictable, so bring layers and a compact umbrella. Also, keep essentials like a travel adapter and charger in your carry-on. Use Luggage Tracking – If flying Air Canada, take advantage of their luggage tracking feature for peace of mind, knowing your bags are on the same flight as you. Stay Hydrated & Bring Snacks – Airplane cabins can be dry, so drink plenty of water. While airlines provide meals, it’s always a good idea to have extra snacks. Manage Jet Lag – Adjust your sleep schedule before departure and try to stay awake until nighttime in London to quickly adapt to the new time zone. Transportation on Arrival – Heathrow and Gatwick have great transport links. The Heathrow Express is the fastest way into central London, while the Tube (Piccadilly Line) is more budget-friendly. Have Your Documents Ready – Ensure your passport is valid, and if required, have your visa or travel authorization (e.g., an ETA for UK entry). With the right prep, your journey will be smooth and enjoyable.

Mohamed ImranFlew with Air TransatYYZ-LGWSep 2024

Pack food for yourself before boarding Air Transat. Blankets, pillows and headphones are not given for free.

GerhardFlew with British AirwaysYYZ-LHRJun 2024

the lounge is nice. Although the crew at check in will say there are no showers, there are! Check the board for delays

CatherineFlew with LufthansaYYZ-LHRMay 2024

Pack light to avoid checked bag fees and then volunteer to place the carry on bag in the hold for no extra cost.

Verified travelerFlew with Air CanadaYYZ-LHRMay 2024

Keep in mind the security gate post security as you cannot return back if you happened to miss collecting all your items

Verified travelerFlew with LufthansaYYZ-LHRMay 2024

Bring water and less luggage on board if possible.

How does KAYAK find such low prices on flights from Ontario to London?
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 Ontario to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to London?
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 London with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?
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 London from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hounslow

Gatwick

Brighton

Hayes

Wembley

Slough

Croydon

Reading

Crawley

Dover

Richmond

Eastbourne

St. Albans

Canterbury

Milton Keynes

Watford

Guildford

Bedford

Hastings

Ilford

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Ontario

First Class flights to Londonfrom C$ 2,651

Business Class flights to Londonfrom C$ 3,222

Prem Econ Class flights to Londonfrom C$ 1,827

Economy Class flights to Londonfrom C$ 673

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

C$ 338 Find Cheap Flights from Ontario to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flights from Ontario to London

Recent round-trip flight deals from Ontario to London

Recent one-way flight deals from Ontario to London

Recent last minute flight deals from Ontario to London

Recent direct flight deals from Ontario to London

Everything you should know

Good to know

Flights from Ontario to London: the best tips from KAYAK users

FAQs for booking flights from Ontario to London

How does KAYAK find such low prices on flights from Ontario to London?

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 Ontario to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?

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

What is the Hacker Fare option on flights from Ontario to London?

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 London with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

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 London from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to Ontario

Complete your trip to London with a hotel stay or car rental

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight