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$ 407 Cheap Flights from Ontario to London

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

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Cheapest round-trip

C$ 778

Overall average: C$ 793

Icelandair

Mon 20/4Thu 30/4

YYZ - LHR • 1 stop

Cheapest direct flights

C$ 781

Typical prices: C$ 655-C$ 934

Air Transat

Wed 11/3Fri 13/3

YYZ - LGW • Direct

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Flight Deals

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, 20 Apr - Thu, 30 Apr

8:45 p.m. - 8:20 p.m.

YYZ

LHR

18h 35m1 stop

1:05 p.m. - 7:10 p.m.

LHR

YYZ

11h 05m1 stop

C$ 778Icelandair

Wed, 14 Jan - Sat, 31 Jan

10:45 p.m. - 10:00 a.m.

YYZ

LGW

30h 15m2 stops

4:35 p.m. - 2:25 p.m.

LGW

YYZ

26h 50m1 stop

C$ 778TAP AIR PORTUGAL

Wed, 28 Jan - Sat, 31 Jan

7:40 p.m. - 2:30 p.m.

YYZ

LGW

13h 50m2 stops

10:30 p.m. - 6:15 p.m.

LGW

YYZ

24h 45m2 stops

C$ 779Multiple Airlines

Fri, 6 Feb - Sat, 14 Feb

6:15 p.m. - 2:50 p.m.

YYZ

STN

15h 35m2 stops

8:00 p.m. - 11:15 a.m.

STN

YYZ

20h 15m1 stop

C$ 779Multiple Airlines

Sat, 10 Jan - Sat, 17 Jan

11:00 p.m. - 11:20 a.m.

YYZ

LHR

7h 20mdirect

1:00 p.m. - 4:00 p.m.

LHR

YYZ

8h 00mdirect

C$ 782Air Canada

Wed, 28 Jan - Wed, 4 Feb

11:00 p.m. - 11:20 a.m.

YYZ

LHR

7h 20mdirect

6:00 p.m. - 9:10 p.m.

LHR

YYZ

8h 10mdirect

C$ 785Lufthansa

Wed, 6 May - Sun, 17 May

9:00 p.m. - 9:50 a.m.

YTZ

LGW

31h 50m1 stop

11:35 a.m. - 8:07 p.m.

LGW

YTZ

13h 32m1 stop

C$ 800Air Transat

Wed, 6 May - Sun, 17 May

9:00 p.m. - 9:50 a.m.

YTZ

LGW

31h 50m1 stop

11:35 a.m. - 6:07 p.m.

LGW

YTZ

11h 32m1 stop

C$ 804Air Transat

Fri, 13 Feb - Fri, 20 Feb

3:35 p.m. - 8:35 p.m.

YUL

LHR

48h 00m2 stops

9:00 a.m. - 3:10 p.m.

LHR

YUL

11h 10m1 stop

C$ 826Air Canada

Wed, 14 Jan - Sun, 25 Jan

7:30 p.m. - 7:10 a.m.

YUL

LHR

6h 40mdirect

7:40 a.m. - 6:20 p.m.

LHR

YUL

15h 40m1 stop

C$ 829Lufthansa

Useful Info

Low season	November
High season	July
Cheapest flight	C$ 407

Best time to beat the crowds (7% less expensive on average)

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

Flight from Montreal to London Gatwick 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

Sep 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 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

Reading

Slough

Crawley

Croydon

Dover

St. Albans

Richmond

Watford

Guildford

Winchester

Canterbury

Borehamwood

Milton Keynes

Eastbourne

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$ 2,604

Business Class flights to Londonfrom C$ 2,266

Prem Econ Class flights to Londonfrom C$ 1,794

Economy Class flights to Londonfrom C$ 676

C$ 407 Find Cheap Flights from Ontario to London

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

Everything you should know

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

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