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Cheap flights from Ontario to London from £246

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LON
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Ontario to London

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£394

One-way from

£246
Air Canada
  • Air Canada
  • 13/2-23/2
  • 4 total stops
  • 44h 45m total
  • Ontario to London
Search Deals
10/2
  • 10/2
  • 3 total stops
  • 30h 45m total
  • Ontario to London
Search Deals

Find flight deals from Ontario to London

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 17 January 2025.

Thu 13/208:50YTZ - LHR
2 stops17h 20mAir Canada
Sun 23/219:25LHR - YTZ
2 stops27h 25mAir Canada
Deal found 16/1£394
Thu 20/206:15YYZ - LHR
1 stop9h 20mAir Canada
Wed 26/208:55LHR - YYZ
1 stop12h 25mAir Canada
Deal found 17/1£394
Mon 3/319:45YYZ - LGW
1 stop10h 10mIcelandair
Sun 9/311:55LGW - YYZ
1 stop11h 20mIcelandair
Deal found 16/1£394
Tue 25/219:45YYZ - LHR
1 stop18h 45mIcelandair
Sat 8/320:40LHR - YYZ
1 stop26h 35mIcelandair
Deal found 15/1£394
Wed 19/321:10YYZ - LHR
Nonstop7h 20mMultiple Airlines
Tue 25/309:30LHR - YYZ
1 stop11h 45mMultiple Airlines
Deal found 16/1£396
Fri 14/320:45YYZ - LTN
1 stop12h 35mMultiple Airlines
Wed 26/307:45LTN - YYZ
1 stop15h 30mMultiple Airlines
Deal found 15/1£396
Fri 7/210:25YTZ - LHR
1 stop15h 45mMultiple Airlines
Mon 17/206:50LHR - YTZ
2 stops16h 00mMultiple Airlines
Deal found 16/1£397
Fri 14/221:35YYZ - LGW
Nonstop7h 10mAir Transat
Fri 21/211:40LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 16/1£397
Mon 17/220:30YYZ - STN
2 stops19h 10mMultiple Airlines
Wed 26/222:25STN - YYZ
2 stops19h 55mMultiple Airlines
Deal found 16/1£398
Sun 2/317:35YYZ - LGW
1 stop14h 10mMultiple Airlines
Sun 9/308:25LGW - YYZ
1 stop12h 25mMultiple Airlines
Deal found 16/1£398
Thu 20/322:35YYZ - LGW
Nonstop7h 10mPorter Airlines
Sun 23/311:40LGW - YYZ
Nonstop8h 20mPorter Airlines
Deal found 16/1£403
Wed 26/217:35YYZ - LCY
1 stop11h 50mMultiple Airlines
Wed 12/306:50LCY - YYZ
1 stop14h 00mMultiple Airlines
Deal found 16/1£413

Find flights from Ontario to London within your budget

Customise your flight search to find flights from Ontario to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Thu 13/2

08:50-07:10

2 stops17h 20m

London Heathrow

Sun 23/2

19:25-17:50

2 stops27h 25m

£394

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 25/4

23:00-20:20

1 stop16h 20m

London Heathrow

Sat 3/5

13:05-21:55

1 stop13h 50m

£394

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 3/3

19:45-10:55

1 stop10h 10m

London Gatwick

Sun 9/3

11:55-19:15

1 stop11h 20m

£394

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 19/3

21:10-08:30

Nonstop7h 20m

London Heathrow

Tue 25/3

09:30-17:15

1 stop11h 45m

£396

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Fri 14/3

20:45-13:20

1 stop12h 35m

London Luton

Wed 26/3

07:45-19:15

1 stop15h 30m

£396

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Fri 14/2

21:35-09:45

Nonstop7h 10m

London Gatwick

Fri 21/2

11:40-15:00

Nonstop8h 20m

£397

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Fri 7/2

10:25-07:10

1 stop15h 45m

London Heathrow

Mon 17/2

06:50-17:50

2 stops16h 00m

£397

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Mon 17/2

20:30-20:40

2 stops19h 10m

London Stansted

Wed 26/2

22:25-13:20

2 stops19h 55m

£398

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 16/2

14:00-07:10

1 stop12h 10m

London Heathrow

Wed 26/2

08:55-16:20

1 stop12h 25m

£402

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Thu 20/3

22:35-09:45

Nonstop7h 10m

London Gatwick

Sun 23/3

11:40-16:00

Nonstop8h 20m

£403

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 60 results
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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.
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.

Travel insights for flights from Ontario to London

Get recent, data-driven insights about flights from Ontario to London including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to London (average of £112). Flying from Region of Ontario to London in August is currently the most expensive (average of £161). 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?

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 17 January 2025.

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 17 January 2025.

The most flights from CAON to LON are scheduled on a Thursday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

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.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 17 January 2025.
See what other customers who have flown with Lufthansa, Air Canada and TAP AIR PORTUGAL from Ontario to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,513 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,513 reviews
Check prices

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    £247 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on TAP AIR PORTUGAL and Azores Airlines, with prices starting from £250 and £263, 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 Toronto Pearson Intl - London Gatwick or Toronto Pearson Intl - London City.

  • 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 Singapore Airlines (75%), SriLankan Airlines (62%) and MEA (62%).

  • 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 £930, our data indicates the cheapest price to be £338. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £352.

  • 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, January is the cheapest month in which you can book a flight from Region of Ontario to London (average of £112). Flying from Region of Ontario to London in August is currently the most expensive (average of £161). 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

Travelling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Deal
Hounslow
Gatwick
Milton Keynes
Croydon
Luton
Slough
Ilford
Hayes
Eastbourne
Maidstone
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall
Stansted
High Wycombe

Browse thousands of different options on Cheapflights for your next trip

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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.
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Hamilton to Heathrow flights

Top 10 airlines flying from Ontario to London

Discover the top 10 airlines that operate flights from Ontario to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£270Average£431FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£363Average£533FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£366Average£462FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air TransatCheapest£396Average£553FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Virgin AtlanticCheapest£411Average£497FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Porter AirlinesCheapest£412Average£670FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapest£421Average£792FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£445Average£567FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£463Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£469Average£635FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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