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Cheap flights from Ontario to London from £195

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LON
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Ontario to London

Keep the following information in mind while searching for Ontario to London flight deals. Data was last updated 21 February 2025.

Round-trip from

£362

One-way from

£195

Popular in

December

Cheapest in

February

Average price

£407

Good round-trip deal

£378 or less

Good one-way deal

£252 or less
Air Transat
  • Air Transat
  • 8/4-30/5
  • 1 total stop
  • 19h 53m total
  • Ontario to London
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Air Transat
  • Air Transat
  • 1/5
  • 1 total stop
  • 14h 05m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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

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 February 2025.

Tue 8/422:35YYZ - LGW
Nonstop7h 10mAir Transat
Fri 30/511:35LGW - YYZ
1 stop12h 43mAir Transat
Deal found 20/2£362
Sun 30/322:35YYZ - LGW
Nonstop7h 10mPorter Airlines
Fri 11/412:40LGW - YYZ
Nonstop8h 20mPorter Airlines
Deal found 21/2£365
Sun 13/415:25YTZ - LHR
1 stop10h 05mAir Canada
Sun 4/506:50LHR - YTZ
2 stops13h 00mAir Canada
Deal found 20/2£372
Wed 2/417:40YYZ - LHR
1 stop11h 40mTAP AIR PORTUGAL
Tue 29/418:45LHR - YYZ
1 stop24h 10mTAP AIR PORTUGAL
Deal found 20/2£375
Mon 3/318:10YYZ - LHR
Nonstop7h 20mAir Canada
Thu 13/306:00LHR - YYZ
1 stop13h 35mAir Canada
Deal found 19/2£376
Thu 5/611:15YTZ - LGW
1 stop17h 35mPorter Airlines
Tue 17/611:35LGW - YTZ
1 stop15h 45mPorter Airlines
Deal found 21/2£391
Wed 12/310:20YTZ - LHR
2 stops16h 50mMultiple Airlines
Wed 19/311:10LHR - YTZ
2 stops14h 40mMultiple Airlines
Deal found 19/2£395
Sun 1/620:55YTZ - LGW
1 stop31h 55mAir Transat
Fri 13/611:35LGW - YTZ
1 stop11h 35mAir Transat
Deal found 19/2£398
Thu 24/418:20YYZ - LHR
Nonstop7h 15mLufthansa
Thu 8/506:55LHR - YYZ
1 stop16h 35mLufthansa
Deal found 20/2£402
Sun 6/422:35YYZ - LGW
Nonstop7h 10mMultiple Airlines
Sun 13/409:50LGW - YYZ
1 stop33h 25mMultiple Airlines
Deal found 21/2£409
Tue 6/507:40YYZ - STN
2 stops35h 15mMultiple Airlines
Tue 13/508:15STN - YYZ
1 stop10h 55mMultiple Airlines
Deal found 20/2£410
Sun 11/523:55YYZ - LTN
1 stop16h 35mMultiple Airlines
Wed 21/513:00LTN - YYZ
1 stop30h 10mMultiple Airlines
Deal found 20/2£412

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 21 February 2025.

Fly from

Ontario

Fly to

London

Route

Depart

Return

Price

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Tue 8/4

22:35-10:45

Nonstop7h 10m

London Gatwick

Fri 30/5

11:35-19:18

1 stop12h 43m

£362

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sun 11/5

22:45-10:45

Nonstop7h 00m

London Gatwick

Wed 21/5

15:35-14:10

1 stop27h 35m

£364

TorontoLondon

YYZ - LGW

YYZLGW

Toronto Pearson Intl

Sun 30/3

22:35-10:45

Nonstop7h 10m

London Gatwick

Fri 11/4

12:40-16:00

Nonstop8h 20m

£365

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Sun 13/4

10:20-06:30

2 stops15h 10m

London Heathrow

Sun 4/5

06:50-14:50

2 stops13h 00m

£372

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 2/4

17:40-10:20

1 stop11h 40m

London Heathrow

Tue 29/4

18:45-13:55

1 stop24h 10m

£375

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 3/3

18:10-06:30

Nonstop7h 20m

London Heathrow

Thu 13/3

06:00-15:35

1 stop13h 35m

£376

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Thu 5/6

16:40-09:50

1 stop12h 10m

London Gatwick

Tue 17/6

11:35-22:20

1 stop15h 45m

£392

TorontoLondon

YTZ - LHR

YTZLHR

Toronto Island

Wed 12/3

10:20-07:10

2 stops16h 50m

London Heathrow

Wed 19/3

11:10-21:50

2 stops14h 40m

£395

TorontoLondon

YTZ - LGW

YTZLGW

Toronto Island

Sun 1/6

20:55-09:50

1 stop31h 55m

London Gatwick

Fri 13/6

11:35-18:10

1 stop11h 35m

£398

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 24/4

18:20-06:35

Nonstop7h 15m

London Heathrow

Thu 8/5

06:55-18:30

1 stop16h 35m

£402

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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 £163). 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 February 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 February 2025.

The most flights from CAON to LON are scheduled on a Thursday (37 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (27 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 21 February 2025.
See what other customers who have flown with Delta, Porter Airlines and KLM 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
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very Good
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Azores Airlines
7.6
Good
62 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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?

    £195 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on Porter Airlines and WestJet, with prices starting from £195 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 Toronto Pearson Intl - London Gatwick or Montreal Pierre Elliott Trudeau Intl - London Heathrow.

  • 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 (67%), American Airlines (65%) and Aer Lingus (65%).

  • 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 £1,012, our data indicates the cheapest price to be £321. The most popular route (Toronto Pearson Intl - London Heathrow), is priced around £201.

  • 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 £163). 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
Milton Keynes
Croydon
Gatwick
Slough
Luton
Ilford
Hayes
Eastbourne
Wembley
Southend-on-Sea
Ipswich
Winchester
Maidstone
Crawley
Southall
Watford
Dartford
Stansted

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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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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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£261Average£382FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapest£363Average£572FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapest£371Average£457FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£398Average£482FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£398Average£544FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£399Average£769FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapest£399Average£655FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
KLMCheapest£430Average£549FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£432Average£557FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£443Average£614FlexibilityNo 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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