How long is the flight from Region of Ontario to London?

A quick flight from Region of Ontario to London can take about 7h 05m. Air Transat provides one of the quickest options available for as low as £472. The distance between Region of Ontario and London is about 3543 mi. Generally, flights for this route are direct.

What are the cheapest airlines to fly from Region of Ontario to London one-way?

£38 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Transat and TAP AIR PORTUGAL, with prices starting from £178 and £196, respectively.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Region of Ontario to London?

The most popular route from Region of Ontario to London is Toronto Pearson Intl - London Heathrow. You may also consider Montreal Pierre Elliott Trudeau Intl - London Heathrow or Toronto Pearson Intl - London Gatwick.

What are the cheapest flights from Region of Ontario to London?

Looking for the cheapest flight from Region of Ontario to London? While on average our users pay £1,063, our data indicates the cheapest price to be £256. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £350.

What are the most reliable airlines from Region of Ontario to London?

The top 3 most reliable airlines when flying from Region of Ontario to London are KLM (83%), SAUDIA (83%) and Air France (83%).

What are the most popular airlines that fly from Region of Ontario to London?

When booking a flight from Region of Ontario to London, you may want to consider flying on Air Canada, Air Transat or Virgin Atlantic as they are the most popular for this route.

Can I find deals for flights from Ontario to London that include hotel bookings?

Yes. In addition to deals on Ontario to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ontario to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to London.

Can I find deals for business class flights from Ontario to London?

Yes. Cheapflights offers flight deals from Ontario to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£208+ Cheap Flights from Ontario to London

Cheap flight deals from Ontario to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Ontario to London
Explore the most affordable flight options available from Ontario to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 October 2026.

Mon 23/1122:45 -

1 stop13h 45m

Tue 8/1206:00 -

1 stop14h 20m

Deal found 17/10£416

Sat 7/1121:35 -

Nonstop7h 10m

Fri 13/1111:40 -

Nonstop8h 20m

Deal found 16/10£416

Wed 11/1119:40 -

2 stops22h 40m

Wed 18/1107:15 -

2 stops16h 00m

Deal found 17/10£416

Mon 23/1117:50 -

2 stops20h 25m

Sun 29/1120:35 -

2 stops29h 44m

Deal found 14/10£417

Tue 10/1119:40 -

2 stops19h 20m

Tue 17/1107:45 -

2 stops15h 30m

Deal found 13/10£417

Sun 15/1121:35 -

Nonstop7h 10m

Sun 6/1211:40 -

Nonstop8h 20m

Deal found 17/10£417

Tue 17/1119:40 -

2 stops21h 10m

Tue 24/1107:15 -

2 stops16h 00m

Deal found 13/10£417

Tue 10/1119:40 -

1 stop10h 10m

Tue 17/1120:35 -

1 stop26h 40m

Deal found 13/10£418

Sun 15/1121:35 -

Nonstop7h 10m

Fri 20/1111:40 -

Nonstop8h 20m

Deal found 15/10£418

Tue 20/1018:00 -

1 stop10h 50m

Tue 10/1111:40 -

Nonstop8h 20m

Deal found 13/10£418

Thu 26/1119:40 -

2 stops22h 35m

Mon 30/1122:35 -

2 stops24h 40m

Deal found 14/10£418

Mon 9/1119:40 -

1 stop18h 50m

Wed 18/1112:15 -

1 stop11h 00m

Deal found 15/10£419

Best flights from Ontario to London
Discover carefully curated flight deals from Ontario to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 October 2026.

Sun 14/221:35 -

Nonstop7h 10m

Wed 17/211:40 -

Nonstop8h 20m

Deal found 17/10£429

Thu 10/1218:45 -

1 stop20h 45m

Thu 17/1216:10 -

1 stop25h 00m

Deal found 13/10£432

Mon 1/221:35 -

Nonstop7h 10m

Fri 5/211:40 -

Nonstop8h 20m

Deal found 13/10£468

Mon 2/1121:45 -

Nonstop7h 05m

Sat 7/1116:10 -

Nonstop7h 55m

Deal found 13/10£472

Fri 15/118:05 -

Nonstop7h 10m

Fri 22/117:15 -

Nonstop8h 00m

Deal found 13/10£481

Fri 13/1120:10 -

Nonstop7h 20m

Fri 20/1118:00 -

Nonstop8h 05m

Deal found 16/10£481

Fri 16/422:45 -

Nonstop7h 05m

Wed 21/417:25 -

Nonstop7h 50m

Deal found 16/10£485

Mon 23/1114:20 -

1 stop11h 45m

Tue 8/1211:45 -

2 stops16h 22m

Deal found 17/10£511

Tue 3/1115:20 -

1 stop10h 20m

Fri 13/1107:40 -

1 stop14h 02m

Deal found 13/10£518

Tue 10/1105:00 -

2 stops21h 10m

Tue 17/1109:00 -

2 stops18h 36m

Deal found 14/10£536

Sun 10/122:45 -

2 stops16h 50m

Sat 30/110:10 -

2 stops33h 15m

Deal found 13/10£541

Fri 25/1216:00 -

1 stop18h 00m

Mon 8/220:15 -

1 stop22h 35m

Deal found 16/10£606

Mon 1/320:15 -

1 stop32h 40m

Mon 15/310:55 -

1 stop36h 25m

Deal found 15/10£652

Thu 19/1112:30 -

2 stops24h 20m

Mon 23/1108:35 -

2 stops14h 16m

Deal found 17/10£779

Mon 12/421:15 -

1 stop20h 00m

Mon 19/409:55 -

1 stop34h 10m

Deal found 16/10£488

Sat 7/1121:45 -

Nonstop7h 05m

Thu 12/1116:10 -

Nonstop7h 55m

Deal found 14/10£489

Sun 14/221:35 -

Nonstop7h 10m

Tue 16/211:40 -

Nonstop8h 20m

Deal found 15/10£490

Mon 9/1122:20 -

1 stop12h 25m

Fri 13/1110:00 -

2 stops17h 51m

Deal found 15/10£513

Wed 28/1012:05 -

1 stop13h 50m

Mon 2/1107:50 -

1 stop13h 52m

Deal found 13/10£518

Thu 26/1110:35 -

2 stops40h 30m

Sun 29/1106:30 -

2 stops41h 10m

Deal found 13/10£490

Tue 2/311:15 -

1 stop19h 05m

Fri 5/309:00 -

2 stops18h 33m

Deal found 15/10£544

Tue 23/323:20 -

Nonstop7h 05m

Sat 3/417:05 -

Nonstop8h 05m

Deal found 14/10£550

Sat 7/1109:40 -

1 stop17h 05m

Wed 18/1110:00 -

1 stop10h 40m

Deal found 14/10£505

Mon 4/121:45 -

Nonstop7h 05m

Wed 13/106:30 -

1 stop14h 10m

Deal found 14/10£514

Sat 7/1110:50 -

2 stops14h 50m

Fri 13/1107:40 -

1 stop14h 02m

Deal found 16/10£529

Thu 7/121:35 -

Nonstop7h 10m

Sun 10/111:40 -

Nonstop8h 20m

Deal found 15/10£586

Mon 30/1119:20 -

1 stop11h 00m

Mon 7/1206:00 -

2 stops17h 45m

Deal found 16/10£544

Sun 15/1120:15 -

1 stop20h 45m

Sun 6/1218:40 -

1 stop24h 25m

Deal found 16/10£498

Fri 6/1109:40 -

2 stops16h 10m

Mon 16/1116:10 -

Nonstop7h 55m

Deal found 14/10£510

Mon 23/1118:30 -

1 stop16h 15m

Tue 8/1210:00 -

2 stops18h 07m

Deal found 17/10£517

Find flight deals from Ontario to London

Round-trip from	£416
One-way from	£208
Popular in	December
Cheapest in	February
Average price	£484
Good round-trip deal	£402 or less
Good one-way deal	£202 or less

TAP AIR PORTUGAL
23/11-8/12
2 total stops
28h 05m total
Ontario to London

Search Deals

24/10-31/12
2 total stops
40h 45m total
Ontario to London

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£10 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Ontario to London (LON).

Search Deals

Price to beat on a one-way flight from Ontario to London (LON).

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TorontoLondon

YYZ Toronto Pearson Intl - LGW London Gatwick

YYZLGW

Toronto Pearson Intl

Sun 1/11

20:15-07:20

1 stop30h 05m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£229

TorontoLondon

YYZ Toronto Pearson Intl - LTN London Luton

YYZLTN

Toronto Pearson Intl

Thu 10/12

18:45-21:35

1 stop21h 50m

London Luton

Wed 31/12

00:00-18:00

Nonstop0h 00m

£230

TorontoLondon

YYZ Toronto Pearson Intl - LGW London Gatwick

YYZLGW

Toronto Pearson Intl

Thu 10/12

18:45-19:30

1 stop19h 45m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£230

TorontoLondon

YTZ Toronto Island - LGW London Gatwick

YTZLGW

Toronto Island

Tue 17/11

14:45-10:20

2 stops38h 35m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£232

TorontoLondon

YYZ Toronto Pearson Intl - LTN London Luton

YYZLTN

Toronto Pearson Intl

Sat 5/12

18:45-13:45

1 stop14h 00m

London Luton

Wed 31/12

00:00-18:00

Nonstop0h 00m

£232

OttawaLondon

YOW Ottawa - LHR London Heathrow

YOWLHR

Ottawa

Fri 27/11

18:55-12:50

1 stop36h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£247

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Mon 11/1

20:10-08:30

Nonstop7h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

Fastest return journey

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Sun 11/4

18:30-06:35

Nonstop7h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Fri 16/4

16:40-07:25

1 stop9h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

TorontoLondon

YYZ Toronto Pearson Intl - LHR London Heathrow

YYZLHR

Toronto Pearson Intl

Mon 12/4

08:30-21:00

Nonstop7h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

Flights are sorted by cheapest return flights first.

Deals found on 17/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Ontario to London

Have a flexible travel schedule? Discover the best time to fly to London from Ontario with our price prediction graph.

YYZ-LGW

YYZ-LHR

YQG-LHR

YOW-LHR

YOW-LGW

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to London

CAON-LON

YYZ-LGW

YYZ-LHR

YQG-LHR

YOW-LHR

What is the cheapest month to book a flight from Region of Ontario to London?

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to London (average of £440). Flying from Region of Ontario to London in December is currently the most expensive (average of £697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to LON?

When flying from Region of Ontario to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to London

The most flights from CAON to LON are scheduled on a Friday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost for a return flight from Region of Ontario to London?

Airfare is below average for this route at the moment.

Region of Ontario to London flights typically cost between £436 and £574 in November.
The cheapest return price found within the last 5 days was £416 on TAP AIR PORTUGAL (23 Nov–8 Dec).

How far ahead should I book a flight from Region of Ontario to London?

The best time to book flights from Region of Ontario to London is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

How long is the flight from Region of Ontario to London?
A quick flight from Region of Ontario to London can take about 7h 05m. Air Transat provides one of the quickest options available for as low as £472. The distance between Region of Ontario and London is about 3543 mi. Generally, flights for this route are direct.
What are the cheapest airlines to fly from Region of Ontario to London one-way?
£38 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Transat and TAP AIR PORTUGAL, with prices starting from £178 and £196, respectively.
What are the most popular routes from Region of Ontario to London?
The most popular route from Region of Ontario to London is Toronto Pearson Intl - London Heathrow. You may also consider Montreal Pierre Elliott Trudeau Intl - London Heathrow or Toronto Pearson Intl - London Gatwick.
What are the most reliable airlines from Region of Ontario to London?
The top 3 most reliable airlines when flying from Region of Ontario to London are KLM (83%), SAUDIA (83%) and Air France (83%).
What are the cheapest flights from Region of Ontario to London?
Looking for the cheapest flight from Region of Ontario to London? While on average our users pay £1,063, our data indicates the cheapest price to be £256. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £350.
Can I find deals for flights from Ontario to London that include hotel bookings?
Yes. In addition to deals on Ontario to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ontario to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to London.
Can I find deals for business class flights from Ontario to London?
Yes. Cheapflights offers flight deals from Ontario to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Region of Ontario to London?
Currently, February is the cheapest month in which you can book a flight from Region of Ontario to London (average of £440). Flying from Region of Ontario to London in December is currently the most expensive (average of £697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Hounslow

Milton Keynes

Luton

Slough

Gatwick

Wembley

Hayes

Ilford

Croydon

Colchester

Eastbourne

Brentford

Southend-on-Sea

Barnet

Enfield

Southall

Watford

Kingston upon Thames

Dagenham

Dover

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Top 9 airlines flying from Ontario to London

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£311	Average£642	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
KLM	Cheapest£382	Average£499	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air Transat	Cheapest£392	Average£495	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Lufthansa	Cheapest£426	Average£587	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air Canada	Cheapest£428	Average£607	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£428	Average£628	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Delta	Cheapest£432	Average£486	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£459	Average£658	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£476	Average£648	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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How does Cheapflights help users find flights from Ontario to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to London?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to London with no change fees?

Need flexible booking options for your flight to London from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?

Of course! You can now track prices for flights from Ontario to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Ontario to London from £208

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to London

Cheapest flights from Ontario to LondonExplore the most affordable flight options available from Ontario to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 October 2026.

Explore the most affordable flight options available from Ontario to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 October 2026.

Best flights from Ontario to LondonDiscover carefully curated flight deals from Ontario to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 October 2026.

Discover carefully curated flight deals from Ontario to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 October 2026.

Direct flights from Ontario to LondonExplore direct flight options from Ontario to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 October 2026.

Explore direct flight options from Ontario to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 October 2026.

Last-minute flights from Ontario to LondonDiscover last-minute flight deals from Ontario to London. Data last updated 18 October 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to London. Data last updated 18 October 2026 and is based on user searches.

One-way flights from Ontario to LondonSearch for one-way flight options from Ontario to London. Find affordable one-way fares based on user searches. Data last updated 18 October 2026.

Search for one-way flight options from Ontario to London. Find affordable one-way fares based on user searches. Data last updated 18 October 2026.

Find flight deals from Ontario to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to London that are best for you.

Best time to book a flight from Ontario to London

Have a flexible travel schedule? Discover the best time to fly to London from Ontario with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Region of Ontario to London?

What is the cheapest time of day to fly from ON to LON?

Find hourly flight availability from Ontario to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 October 2026.

When flying from Region of Ontario to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to London

Explore weekly flight availability from Ontario to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 October 2026.

The most flights from CAON to LON are scheduled on a Friday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost for a return flight from Region of Ontario to London?

Airfare is below average for this route at the moment.

Region of Ontario to London flights typically cost between £436 and £574 in November.The cheapest return price found within the last 5 days was £416 on TAP AIR PORTUGAL (23 Nov–8 Dec).

How far ahead should I book a flight from Region of Ontario to London?

The best time to book flights from Region of Ontario to London is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

How long is the flight from Region of Ontario to London?

What are the cheapest airlines to fly from Region of Ontario to London one-way?

What are the most popular routes from Region of Ontario to London?

What are the most reliable airlines from Region of Ontario to London?

What are the cheapest flights from Region of Ontario to London?

Can I find deals for flights from Ontario to London that include hotel bookings?

How can I find direct flights from Ontario to London?

Can I find deals for business class flights from Ontario to London?

What is the cheapest month to book a flight from Region of Ontario to London?

Travelling to a place near London?

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Alternative routes for Ontario to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Ontario to London by cabin class

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Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 October 2026.

Ontario and London flights

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Ontario to London flights

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Top 9 airlines flying from Ontario to London

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How does Cheapflights help users find flights from Ontario to London?

Why should you use Cheapflights to find cheap flight tickets from Ontario to London?

Can Cheapflights find flights from Ontario to London with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?

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Cheapest flights from Ontario to London
Explore the most affordable flight options available from Ontario to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 October 2026.

Best flights from Ontario to London
Discover carefully curated flight deals from Ontario to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 October 2026.

Direct flights from Ontario to London
Explore direct flight options from Ontario to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 October 2026.

Last-minute flights from Ontario to London
Discover last-minute flight deals from Ontario to London. Data last updated 18 October 2026 and is based on user searches.

One-way flights from Ontario to London
Search for one-way flight options from Ontario to London. Find affordable one-way fares based on user searches. Data last updated 18 October 2026.

Region of Ontario to London flights typically cost between £436 and £574 in November.
The cheapest return price found within the last 5 days was £416 on TAP AIR PORTUGAL (23 Nov–8 Dec).