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.

C$ 384 CHEAP FLIGHTS from Ontario to London

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Ontario to London

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

Fri, 23 Oct - Fri, 30 Oct

10:45 p.m. - 10:15 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STN London Stansted

18h 30m1 stop Lisbon Humberto Delgado

6:55 a.m. - 8:55 p.m.STN London Stansted-YUL Montreal Pierre Elliott Trudeau Intl

18h 00m1 stop Lisbon Humberto Delgado

C$ 748Multiple Airlines

Tue, 22 Sep - Mon, 28 Sep

4:55 p.m. - 7:55 a.m.YTZ Toronto Island-LGW London Gatwick

10h 00m1 stop Ottawa

11:35 a.m. - 8:11 p.m.LGW London Gatwick-YTZ Toronto Island

13h 36m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 752Air Transat

Sun, 22 Nov - Thu, 3 Dec

7:40 p.m. - 7:30 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

18h 50m1 stop Reykjavik Keflavik Intl

12:15 p.m. - 6:15 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

11h 00m1 stop Reykjavik Keflavik Intl

C$ 752Icelandair

Thu, 26 Nov - Thu, 3 Dec

7:40 p.m. - 7:30 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

18h 50m1 stop Reykjavik Keflavik Intl

12:15 p.m. - 6:15 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

11h 00m1 stop Reykjavik Keflavik Intl

C$ 752Icelandair

Thu, 8 Oct - Thu, 15 Oct

5:10 p.m. - 8:40 p.m.YYZ Toronto Pearson Intl-LTN London Luton

22h 30m2 stops Kastrup Copenhagen Wrocław Strachowice

9:20 p.m. - 3:40 p.m.LTN London Luton-YYZ Toronto Pearson Intl

23h 20m2 stops Wrocław Strachowice Kastrup Copenhagen

C$ 753Multiple Airlines

Mon, 14 Sep - Mon, 28 Sep

8:45 p.m. - 7:55 a.m.YTZ Toronto Island-LGW London Gatwick

30h 10m1 stop Ottawa

11:35 a.m. - 8:11 p.m.LGW London Gatwick-YTZ Toronto Island

13h 36m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 759Air Transat

Mon, 23 Nov - Wed, 25 Nov

5:55 p.m. - 12:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

13h 05m1 stop Chicago O'Hare Intl

11:05 a.m. - 2:25 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

56h 20m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

C$ 778United Airlines

Tue, 20 Oct - Tue, 17 Nov

5:35 p.m. - 6:50 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

20h 15m1 stop Lisbon Humberto Delgado

6:00 a.m. - 3:20 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

14h 20m1 stop Lisbon Humberto Delgado

C$ 778TAP AIR PORTUGAL

Mon, 7 Dec - Sun, 13 Dec

10:45 p.m. - 3:45 p.m.YYZ Toronto Pearson Intl-LGW London Gatwick

12h 00m1 stop Lisbon Humberto Delgado

10:40 a.m. - 9:15 p.m.LGW London Gatwick-YYZ Toronto Pearson Intl

15h 35m1 stop Lisbon Humberto Delgado

C$ 780TAP AIR PORTUGAL

Tue, 27 Oct - Thu, 29 Oct

5:55 p.m. - 12:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

14h 05m1 stop Chicago O'Hare Intl

11:05 a.m. - 11:22 a.m.LHR London Heathrow-YYZ Toronto Pearson Intl

52h 17m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

C$ 889United Airlines

Recent last minute flight deals from Ontario to London

Tue, 1 Sep - Mon, 14 Sep

10:45 p.m. - 9:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

17h 15m1 stop Halifax Intl

6:55 a.m. - 2:55 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

13h 00m1 stop Munich Franz Josef Strauss

C$ 860Multiple Airlines

Mon, 31 Aug - Wed, 28 Oct

10:40 p.m. - 9:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

17h 20m1 stop Halifax Intl

9:00 a.m. - 5:15 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

12h 15m1 stop Zurich

C$ 873Multiple Airlines

Tue, 1 Sep - Mon, 19 Oct

10:45 p.m. - 9:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

17h 15m1 stop Halifax Intl

8:40 a.m. - 4:10 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

12h 30m1 stop Zurich

C$ 874Air Canada

Tue, 1 Sep - Fri, 23 Oct

10:45 p.m. - 9:00 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

17h 15m1 stop Halifax Intl

8:40 a.m. - 4:10 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

12h 30m1 stop Zurich

C$ 874Air Canada

Wed, 2 Sep - Mon, 14 Sep

8:20 p.m. - 7:40 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

18h 20m1 stop Munich Franz Josef Strauss

7:25 a.m. - 2:55 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

12h 30m1 stop Munich Franz Josef Strauss

C$ 928Lufthansa

Wed, 2 Sep - Mon, 14 Sep

8:20 p.m. - 7:40 p.m.YYZ Toronto Pearson Intl-LHR London Heathrow

18h 20m1 stop Munich Franz Josef Strauss

5:40 p.m. - 8:30 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

C$ 950Lufthansa

Tue, 1 Sep - Tue, 20 Oct

2:00 p.m. - 6:45 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

11h 45m1 stop Chicago O'Hare Intl

6:50 a.m. - 8:35 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

18h 45m2 stops Brussels Bruxelles-National Newark

C$ 956United Airlines

Tue, 1 Sep - Wed, 30 Sep

2:30 p.m. - 6:55 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

11h 25m1 stop Washington, D.C. Dulles Intl

6:50 a.m. - 10:23 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

20h 33m2 stops Brussels Bruxelles-National Newark

C$ 956United Airlines

Wed, 2 Sep - Mon, 12 Oct

6:00 a.m. - 6:45 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

19h 45m1 stop New York LaGuardia

5:50 p.m. - 8:40 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

C$ 1,050Delta

Wed, 2 Sep - Sun, 11 Oct

6:00 a.m. - 6:45 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

19h 45m1 stop New York LaGuardia

5:45 p.m. - 8:35 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

C$ 1,050Delta

Recent direct flight deals from Ontario to London

Mon, 26 Oct - Wed, 11 Nov

10:35 p.m. - 9:45 a.m.YYZ Toronto Pearson Intl-LGW London Gatwick

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW London Gatwick-YYZ Toronto Pearson Intl

8h 20mdirect

C$ 767Air Transat

Tue, 8 Dec - Mon, 14 Dec

9:35 p.m. - 9:45 a.m.YYZ Toronto Pearson Intl-LGW London Gatwick

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW London Gatwick-YYZ Toronto Pearson Intl

8h 20mdirect

C$ 767Air Transat

Sat, 21 Nov - Fri, 27 Nov

9:35 p.m. - 9:45 a.m.YYZ Toronto Pearson Intl-LGW London Gatwick

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW London Gatwick-YYZ Toronto Pearson Intl

8h 20mdirect

C$ 781Porter Airlines

Mon, 15 Feb - Sun, 21 Feb

9:35 p.m. - 9:45 a.m.YYZ Toronto Pearson Intl-LGW London Gatwick

7h 10mdirect

11:40 a.m. - 3:00 p.m.LGW London Gatwick-YYZ Toronto Pearson Intl

8h 20mdirect

C$ 781Porter Airlines

Thu, 1 Oct - Thu, 8 Oct

11:50 p.m. - 11:50 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

7h 00mdirect

2:10 p.m. - 5:20 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

8h 10mdirect

C$ 846Air Canada

Fri, 11 Sep - Thu, 17 Sep

6:40 p.m. - 6:30 a.m.YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

6h 50mdirect

2:05 p.m. - 4:40 p.m.LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

7h 35mdirect

C$ 848Air Canada

Thu, 1 Oct - Thu, 8 Oct

10:55 p.m. - 11:10 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

5:50 p.m. - 8:40 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

C$ 860Virgin Atlantic

Thu, 1 Oct - Sat, 10 Oct

10:55 p.m. - 11:10 a.m.YYZ Toronto Pearson Intl-LHR London Heathrow

7h 15mdirect

5:50 p.m. - 8:40 p.m.LHR London Heathrow-YYZ Toronto Pearson Intl

7h 50mdirect

C$ 861Virgin Atlantic

Tue, 15 Sep - Wed, 20 Jan

10:00 p.m. - 9:40 a.m.YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

6h 40mdirect

4:45 p.m. - 7:15 p.m.LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

7h 30mdirect

C$ 867British Airways

Tue, 15 Sep - Wed, 20 Jan

10:00 p.m. - 9:40 a.m.YUL Montreal Pierre Elliott Trudeau Intl-LHR London Heathrow

6h 40mdirect

4:45 p.m. - 7:15 p.m.LHR London Heathrow-YUL Montreal Pierre Elliott Trudeau Intl

7h 30mdirect

C$ 874British Airways

Useful Info

Low season	January
High season	August
Cheapest flight	C$ 384

Best time to beat the crowds (20% less expensive on average)

Most popular time to fly (12% more expensive on average)

Flight from Toronto Pearson Airport to London Heathrow Airport

CFlew with Air Canada-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-Sep 2024

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

GerhardFlew with British Airways-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-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-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-Apr 2024

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

Verified travelerFlew with Lufthansa-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

Reading

Brighton

Hayes

Wembley

Guildford

Harrow

Croydon

Slough

Ilford

Winchester

Crawley

Canterbury

Dover

Bedford

Horley

Milton Keynes

Richmond

Brentford

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$ 947

Business Class flights to Londonfrom C$ 1,124

Premium Economy Class flights to Londonfrom C$ 2,222

Economy Class flights to Londonfrom C$ 626

C$ 384 Find Cheap Flights from Ontario to London – Compare and Save

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

Low season

High season

Cheapest flight

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 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