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$ 263 CHEAP FLIGHTS from Ontario to London

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

...and more

Travellers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to London

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to London.

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

Choose your dates

10:15 p.m. - 8:05 a.m.YYZ-STN

28h 50m1 stop

10:00 p.m. - 2:10 p.m.STN-YYZ

21h 10m1 stop

C$ 619

Find Deal

Sat, 31 May - Mon, 9 Jun

10:15 p.m. - 8:00 p.m.YYZ-STN

16h 45m1 stop

10:00 p.m. - 2:10 p.m.STN-YYZ

21h 10m1 stop

C$ 620

Find Deal

Wed, 28 May - Mon, 9 Jun

4:35 p.m. - 7:55 a.m.YYZ-LHR

10h 20m1 stop

8:45 a.m. - 4:25 p.m.LHR-YYZ

12h 40m1 stop

C$ 622SWISS

Find Deal

Thu, 5 Jun - Tue, 24 Jun

11:00 p.m. - 8:20 p.m.YYZ-LHR

16h 20m1 stop

9:25 p.m. - 9:55 p.m.LHR-YYZ

29h 30m1 stop

C$ 627Icelandair

Find Deal

Sun, 8 Jun - Sun, 15 Jun

4:40 p.m. - 9:50 a.m.YTZ-LGW

12h 10m1 stop

11:35 a.m. - 12:10 p.m.LGW-YTZ

29h 35m1 stop

C$ 645Porter Airlines

Find Deal

Sat, 7 Jun - Sat, 14 Jun

6:00 p.m. - 9:50 a.m.YYZ-LGW

10h 50m1 stop

11:35 a.m. - 5:25 p.m.LGW-YYZ

10h 50m1 stop

C$ 648Air Transat

Find Deal

Tue, 20 May - Fri, 6 Jun

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

7h 00mdirect

11:35 a.m. - 11:58 a.m.LGW-YYZ

29h 23m1 stop

C$ 649Air Transat

Find Deal

Sat, 7 Jun - Sat, 14 Jun

11:00 p.m. - 11:55 a.m.YYZ-LHR

31h 55m1 stop

9:25 p.m. - 9:55 p.m.LHR-YYZ

29h 30m1 stop

C$ 652Icelandair

Find Deal

Sat, 7 Jun - Sat, 14 Jun

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

31h 50m1 stop

11:35 a.m. - 6:10 p.m.LGW-YTZ

11h 35m1 stop

C$ 652Porter Airlines

Find Deal

Mon, 12 May - Wed, 21 May

8:15 p.m. - 9:30 p.m.YYZ-LHR

44h 15m2 stops

12:10 p.m. - 4:25 p.m.LHR-YYZ

33h 15m1 stop

C$ 699SWISS

Find Deal

Mon, 12 May - Thu, 15 May

Low season	January
High season	May
Cheapest flight	C$ 263

Best time to beat the crowds (22% less expensive on average)

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

Flight from Toronto to London Stansted 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.

AnkushFlew with Air CanadaYYZ-LHRSep 2024

My luggage didn’t arrive to Delhi from Toronto. It took 4 days for the airline to get me the bags when I followed up several times. This could be made more efficient with tracking or something. A

Verified travelerFlew with British AirwaysYYZ-LHRNov 2024

Whatever you do - do NOT go anywhere near the cheapy airlines - BA & Air Canada are both decent albeit the seats in economy are painfully basic

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 LufthansaYYZ-LHRMay 2024

Flights to London UK out of Toronto are half the cost of flights from Detroit

Verified travelerFlew with LufthansaYYZ-LHRMay 2024

Bring water and less luggage on board if possible.

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

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.

See more FAQs

Hounslow

Brighton

Hayes

Croydon

Milton Keynes

Slough

Borehamwood

Wembley

Canterbury

Dover

Guildford

Horley

Southall

Eastbourne

Maidstone

Ilford

St. Albans

Chichester

Kingston upon Thames

Harrow

Everything you need to know for your flight to London

C$ 263 Find Cheap Flights from Ontario to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 14/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

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

Cheap Flight Deals 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

How does KAYAK find such low prices 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?

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

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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

Find direct flights for London

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to London

Flights from all regions of Ontario to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Choose which airport to fly into in London

Find deals for your return flight