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 return 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.

£195 CHEAP FLIGHTS from Ontario to London

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Cheap Flights from Ontario to London

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

Return

One-way

Last minute

Direct

Recent return flight deals from Ontario to London

Thu, 8 Oct - Tue, 13 Oct

22:05 - 09:50

YUL

LGW

6h 45mdirect

12:40 - 19:20

LGW

YUL

11h 40m

1 stop

£399Air Transat

Sat, 5 Sep - Sun, 20 Sep

17:00 - 07:55

YUL

LGW

9h 55m

1 stop

11:35 - 14:15

LGW

YUL

7h 40mdirect

£400Air Transat

Sun, 13 Sep - Sat, 19 Sep

22:05 - 09:50

YUL

LGW

6h 45mdirect

09:40 - 17:02

LGW

YUL

12h 22m

1 stop

£400Air Transat

Sun, 13 Sep - Wed, 23 Sep

22:05 - 09:50

YUL

LGW

6h 45mdirect

12:40 - 19:32

LGW

YUL

11h 52m

1 stop

£401Air Transat

Thu, 17 Sep - Wed, 23 Sep

17:00 - 23:20

YUL

STN

25h 20m

2 stops

06:30 - 00:37

STN

YUL

23h 07m

2 stops

£404Multiple Airlines

Thu, 24 Sep - Sun, 27 Sep

20:40 - 08:15

YUL

LHR

30h 35m

1 stop

06:00 - 15:00

LHR

YUL

14h 00m

1 stop

£405SWISS

Wed, 9 Sep - Tue, 15 Sep

22:45 - 20:20

YUL

STN

16h 35m

2 stops

15:55 - 20:45

STN

YUL

33h 50m

2 stops

£406Multiple Airlines

Thu, 12 Nov - Mon, 16 Nov

17:30 - 17:30

YYZ

LHR

19h 00m

1 stop

06:00 - 21:15

LHR

YYZ

20h 15m

1 stop

£412TAP AIR PORTUGAL

Tue, 8 Sep - Mon, 14 Sep

18:10 - 09:50

YYZ

LGW

10h 40m

1 stop

11:35 - 18:28

LGW

YYZ

11h 53m

1 stop

£412Porter Airlines

Sat, 14 Nov - Tue, 17 Nov

17:10 - 08:05

YUL

LHR

33h 55m

2 stops

06:00 - 15:10

LHR

YUL

14h 10m

1 stop

£432SWISS

Useful Info

Low season	January
High season	August
Cheapest flight	£195

Best time to beat the crowds (14% less expensive on average)

Most popular time to fly (13% more expensive on average)

Flight from Toronto Pearson Airport to London Heathrow Airport

CFlew with Air Canada

YYZ

LHR

Feb 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 Transat

YYZ

LGW

Sept 2024

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

GerhardFlew with British Airways

YYZ

LHR

Jun 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 Lufthansa

YYZ

LHR

May 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 Canada

YYZ

LHR

May 2024

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

IwonaFlew with Air Canada

YYZ

LHR

Apr 2024

Pack in ur carryon bag and don’t waste ur money to pay for check in

Verified travelerFlew with Lufthansa

YYZ

LHR

May 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 return 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.

Gatwick

Milton Keynes

Eastbourne

Hounslow

Luton

Southend-on-Sea

Slough

Winchester

Stansted

Croydon

Folkestone

Newport

Chichester

Colchester

Maidstone

Crawley

Chelmsford

Bedford

Hastings

Richmond

Everything you need to know for your flight to London

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Cabin class types available on flights to Ontario

First Class flights to London

Business Class flights to Londonfrom £1,572

Premium Economy Class flights to Londonfrom £1,503

Economy class flights to Londonfrom £339

£195 Find Cheap Flights from Ontario to London – Compare and Save

Cheap Flights from Ontario to London

Recent return flight deals from Ontario to London

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Good to know - Cheap tickets from Ontario to London

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

FAQs for booking flights from Ontario to London

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 hire

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