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Cheap flights from Ontario to London from C$ 429

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LON
26 Jan — 2 Feb1
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 21 January 2025.

Round-trip from

C$ 681

One-way from

C$ 429

Good round-trip deal

C$ 706 or less

Good one-way deal

C$ 579 or less
Icelandair
  • Icelandair
  • 31/3-30/4
  • 2 total stops
  • 21h 10m total
  • Ontario to London
24/2
  • 24/2
  • 3 total stops
  • 30h 45m total
  • Ontario to London
Price to beat on a round-trip flight from Ontario to London (LON).
Price to beat on a one-way flight from Ontario to London (LON).

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 21 January 2025.

Mon 31/38:50 p.m.YYZ - LHR
1 stop10h 05mIcelandair
Wed 30/41:05 p.m.LHR - YYZ
1 stop11h 05mIcelandair
Deal found 21/1C$ 681
Mon 3/27:45 p.m.YYZ - LGW
1 stop10h 10mIcelandair
Mon 24/211:55 a.m.LGW - YYZ
1 stop11h 20mIcelandair
Deal found 21/1C$ 681
Wed 26/310:35 p.m.YYZ - LGW
Nonstop7h 10mPorter Airlines
Thu 3/412:40 p.m.LGW - YYZ
Nonstop8h 20mPorter Airlines
Deal found 21/1C$ 682
Tue 18/32:00 p.m.YYZ - LHR
1 stop13h 10mMultiple Airlines
Mon 24/31:30 p.m.LHR - YYZ
1 stop11h 25mMultiple Airlines
Deal found 21/1C$ 686
Mon 17/211:25 p.m.YYZ - LHR
Nonstop7h 25mAir Canada
Mon 24/28:55 a.m.LHR - YYZ
1 stop12h 25mAir Canada
Deal found 20/1C$ 692
Tue 18/29:35 p.m.YYZ - LGW
Nonstop7h 10mAir Transat
Tue 18/311:40 a.m.LGW - YYZ
Nonstop8h 20mAir Transat
Deal found 20/1C$ 692
Wed 16/44:20 p.m.YTZ - LHR
1 stop11h 15mAir Canada
Mon 21/46:50 a.m.LHR - YTZ
2 stops15h 00mAir Canada
Deal found 20/1C$ 695
Wed 19/38:45 p.m.YYZ - LTN
1 stop12h 45mMultiple Airlines
Wed 26/37:45 a.m.LTN - YYZ
1 stop15h 30mMultiple Airlines
Deal found 20/1C$ 695
Sun 16/29:25 p.m.YYZ - STN
2 stops20h 10mMultiple Airlines
Sun 23/212:35 p.m.STN - YYZ
2 stops32h 45mMultiple Airlines
Deal found 21/1C$ 720
Thu 27/25:35 p.m.YYZ - LCY
1 stop10h 00mMultiple Airlines
Thu 6/36:50 a.m.LCY - YYZ
1 stop14h 00mMultiple Airlines
Deal found 21/1C$ 727
Fri 24/16:05 p.m.YYZ - LHR
1 stop11h 25mVirgin Atlantic
Sun 26/16:30 a.m.LHR - YYZ
1 stop17h 45mVirgin Atlantic
Deal found 20/1C$ 744
Fri 24/11:20 p.m.YYZ - LHR
1 stop12h 30mKLM
Sun 26/16:30 a.m.LHR - YYZ
1 stop14h 10mKLM
Deal found 20/1C$ 750

Find flights from Ontario to London within your budget

Customize 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 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 31/3

8:50 p.m.-11:55 a.m.

1 stop10h 05m

London Heathrow

Wed 30/4

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

1 stop11h 05m

C$ 681

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 3/2

7:45 p.m.-10:55 a.m.

1 stop10h 10m

London Gatwick

Mon 24/2

11:55 a.m.-6:15 p.m.

1 stop11h 20m

C$ 681

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Mon 3/2

9:35 p.m.-9:45 a.m.

Nonstop7h 10m

London Gatwick

Fri 14/2

11:40 a.m.-3:00 p.m.

Nonstop8h 20m

C$ 682

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Fri 14/3

10:35 p.m.-9:45 a.m.

Nonstop7h 10m

London Gatwick

Tue 18/3

11:40 a.m.-4:00 p.m.

Nonstop8h 20m

C$ 684

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 18/3

2:00 p.m.-7:10 a.m.

1 stop13h 10m

London Heathrow

Mon 24/3

1:30 p.m.-8:55 p.m.

1 stop11h 25m

C$ 686

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 17/2

2:00 p.m.-7:10 a.m.

1 stop12h 10m

London Heathrow

Sun 23/2

7:25 p.m.-2:35 p.m.

1 stop24h 10m

C$ 692

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Mon 3/2

8:50 a.m.-7:10 a.m.

2 stops17h 20m

London Heathrow

Tue 22/4

6:00 a.m.-4:50 p.m.

2 stops15h 50m

C$ 695

TorontoLondon

YYZ - LTN

YYZLTN

Toronto Pearson Intl

Sun 16/2

9:25 p.m.-10:00 p.m.

2 stops19h 35m

London Luton

Sun 23/2

1:10 p.m.-4:20 p.m.

2 stops32h 10m

C$ 695

TorontoLondon

YYZ - STN

YYZSTN

Toronto Pearson Intl

Sun 16/2

9:25 p.m.-10:35 p.m.

2 stops20h 10m

London Stansted

Sun 23/2

12:35 p.m.-4:20 p.m.

2 stops32h 45m

C$ 720

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sat 3/5

5:35 p.m.-9:25 a.m.

1 stop10h 50m

London Gatwick

Mon 5/5

9:45 a.m.-3:50 p.m.

1 stop11h 05m

C$ 725

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

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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 round-trip 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 C$ 560). Flying from Region of Ontario to London in July is currently the most expensive (average of C$ 874). 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 21 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 21 January 2025.

The most flights from CAON to LON are scheduled on a Friday (39 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 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 mm 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 21 January 2025.
See what other customers who have flown with Icelandair, Air Canada and British Airways from Ontario to London have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

7.9
Good
277 reviews
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

7.8
Good
1,341 reviews
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

7.8
Good
381 reviews
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

7.6
Good
1,117 reviews
8.0
Very good
8,521 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

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?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as C$ 438. Users have also found prices from C$ 439 and C$ 448 on WestJet and Azores Airlines, respectively.

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

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

    Consider Singapore Airlines (75%), SriLankan Airlines (62%) or MEA (62%) when booking your flight. These represent the most reliable airlines when flying from Region of Ontario to London.

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

    On average you can expect to pay C$ 2,095 for a flight from Region of Ontario to London. The cheapest flight overall is C$ 595 while the most popular route, (Toronto Pearson Intl - London Heathrow) is currently priced at C$ 636.

  • 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 vacation 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 C$ 560). Flying from Region of Ontario to London in July is currently the most expensive (average of C$ 874). 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
Brentford
Hounslow
Slough
Luton
Milton Keynes
Romford
Watford
Bedford
Bromley
Southall

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.

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 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 386AverageC$ 651FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapestC$ 549AverageC$ 676FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapestC$ 630AverageC$ 823FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 630AverageC$ 918FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapestC$ 642AverageC$ 974FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air TransatCheapestC$ 675AverageC$ 998FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Scandinavian AirlinesCheapestC$ 682AverageC$ 780FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
DeltaCheapestC$ 698AverageC$ 903FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 709AverageC$ 951FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 737AverageC$ 1,108FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Cheapflights helps you search for flights from Ontario to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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