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Cheap flights from the United Kingdom to Ontario from C$ 416

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
31 Mar — 7 Apr1
1 adult

Cheap flight deals from United Kingdom to Ontario

Keep the following information in mind while searching for United Kingdom to Ontario flight deals. Data was last updated 26 March 2025.

Round-trip from

C$ 614

One-way from

C$ 416

Popular in

August

Cheapest in

February

Average price

C$ 755

Good round-trip deal

C$ 722 or less

Good one-way deal

C$ 436 or less
Air Canada
  • Air Canada
  • 22/4-13/5
  • 2 total stops
  • 28h 50m total
  • United Kingdom to Ontario
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12/6
  • 12/6
  • 1 total stop
  • 12h 50m total
  • United Kingdom to Ontario
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Highest demand for flights based on searches. 12% potential increase in price (C$ 167 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from United Kingdom to Ontario.
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Price to beat on a one-way flight from United Kingdom to Ontario.
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Find flight deals from United Kingdom to Ontario

Cheapest flights from United Kingdom to Ontario
Explore the most affordable flight options available from United Kingdom to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.

Tue 22/46:00 a.m.LHR - YYZ
1 stop15h 20mMultiple Airlines
Tue 13/512:00 p.m.YYZ - LHR
1 stop13h 30mMultiple Airlines
Deal found 25/3C$ 614
Mon 28/412:40 p.m.LGW - YYZ
Nonstop8h 20mAir Transat
Mon 5/511:15 p.m.YYZ - LGW
1 stop29h 35mAir Transat
Deal found 25/3C$ 614
Sat 3/56:00 a.m.LHR - YTZ
2 stops16h 50mAir Canada
Sun 4/58:25 a.m.YTZ - LHR
1 stop17h 05mAir Canada
Deal found 24/3C$ 614
Wed 23/46:15 a.m.LHR - YYZ
1 stop14h 25mBritish Airways
Wed 14/510:00 p.m.YYZ - LHR
Nonstop7h 15mBritish Airways
Deal found 26/3C$ 616
Fri 9/58:40 a.m.LHR - YYZ
1 stop12h 45mAir Canada
Fri 16/511:35 p.m.YYZ - LHR
Nonstop7h 15mAir Canada
Deal found 25/3C$ 621
Wed 30/43:40 p.m.LGW - YYZ
1 stop11h 15mIcelandair
Tue 13/58:50 p.m.YYZ - LGW
1 stop12h 50mIcelandair
Deal found 25/3C$ 622
Fri 12/93:20 p.m.LHR - YYZ
1 stop10h 35mAir France
Sun 28/910:30 p.m.YYZ - LHR
Nonstop7h 10mAir France
Deal found 25/3C$ 629
Thu 15/55:50 p.m.STN - YYZ
1 stop25h 20mMultiple Airlines
Thu 29/510:15 p.m.YYZ - STN
1 stop16h 10mMultiple Airlines
Deal found 25/3C$ 629
Wed 14/511:35 a.m.LGW - YTZ
1 stop25h 50mAir Transat
Wed 21/59:00 p.m.YTZ - LGW
1 stop31h 50mAir Transat
Deal found 25/3C$ 631
Thu 1/58:40 a.m.LHR - YTZ
2 stops14h 10mMultiple Airlines
Wed 7/512:25 p.m.YTZ - LHR
1 stop13h 05mMultiple Airlines
Deal found 24/3C$ 632
Tue 24/61:10 p.m.LTN - YYZ
1 stop30h 00mMultiple Airlines
Tue 15/79:15 p.m.YYZ - LTN
1 stop20h 10mMultiple Airlines
Deal found 25/3C$ 644
Tue 6/58:45 a.m.LCY - YYZ
1 stop15h 50mMultiple Airlines
Tue 13/58:15 p.m.YYZ - LCY
1 stop17h 30mMultiple Airlines
Deal found 25/3C$ 646

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Ontario 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 26 March 2025.
Use the filters below to find and compare flights from the United Kingdom to Ontario that are best for you.

Fly from

United Kingdom

Fly to

Ontario

Route

Depart

Return

Price

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 22/4

6:00 a.m.-4:20 p.m.

1 stop15h 20m

Toronto Pearson Intl

Tue 13/5

12:00 p.m.-6:30 a.m.

1 stop13h 30m

C$ 614

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Mon 28/4

12:40 p.m.-4:00 p.m.

Nonstop8h 20m

Toronto Pearson Intl

Mon 5/5

11:15 p.m.-9:50 a.m.

1 stop29h 35m

C$ 614

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 23/4

6:15 a.m.-3:40 p.m.

1 stop14h 25m

Toronto Pearson Intl

Wed 14/5

10:00 p.m.-10:15 a.m.

Nonstop7h 15m

C$ 616

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 9/5

8:40 a.m.-4:25 p.m.

1 stop12h 45m

Toronto Pearson Intl

Fri 16/5

11:35 p.m.-11:50 a.m.

Nonstop7h 15m

C$ 621

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 30/4

3:40 p.m.-9:55 p.m.

1 stop11h 15m

Toronto Pearson Intl

Tue 13/5

8:50 p.m.-2:40 p.m.

1 stop12h 50m

C$ 622

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 9/5

8:40 a.m.-7:50 p.m.

2 stops16h 10m

Toronto Island

Fri 16/5

8:25 p.m.-6:30 a.m.

1 stop29h 05m

C$ 626

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 12/9

3:20 p.m.-8:55 p.m.

1 stop10h 35m

Toronto Pearson Intl

Sun 28/9

10:30 p.m.-10:40 a.m.

Nonstop7h 10m

C$ 629

LondonToronto

STN - YYZ

STNYYZ

London Stansted

Thu 15/5

5:50 p.m.-2:10 p.m.

1 stop25h 20m

Toronto Pearson Intl

Thu 29/5

10:15 p.m.-7:25 p.m.

1 stop16h 10m

C$ 629

LondonToronto

LGW - YTZ

LGWYTZ

London Gatwick

Wed 14/5

11:35 a.m.-8:25 a.m.

1 stop25h 50m

Toronto Island

Wed 21/5

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

1 stop31h 50m

C$ 631

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Tue 24/6

1:10 p.m.-2:10 p.m.

1 stop30h 00m

Toronto Pearson Intl

Tue 15/7

9:15 p.m.-10:25 p.m.

1 stop20h 10m

C$ 644

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from United Kingdom 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.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Ontario

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

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 167). Flying from United Kingdom to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 GB to ON?

Find hourly flight availability from United Kingdom to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Region of Ontario as you normally would.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 26 March 2025.
To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about Delta, KLM and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
LOT
7.6
Good
1,061 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Ontario. 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 United Kingdom to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 418 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 425 and TAP AIR PORTUGAL from C$ 502 one-way.

  • Can I find deals for flights from United Kingdom to Ontario that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Ontario?

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

  • Can I find deals for business class flights from United Kingdom to Ontario?

    Yes. Cheapflights offers flight deals from United Kingdom to Ontario 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 United Kingdom to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 167). Flying from United Kingdom to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Ontario

Discover the top 10 airlines that operate flights from United Kingdom to Ontario. 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 217AverageC$ 1,042FlexibilityNo cancel feeOn-time77%
Search Air France flights
IcelandairCheapestC$ 575AverageC$ 1,008FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 615AverageC$ 1,024FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 638AverageC$ 974FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 646AverageC$ 1,050FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 671AverageC$ 1,087FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapestC$ 675AverageC$ 980FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapestC$ 676AverageC$ 1,199FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IberiaCheapestC$ 678AverageC$ 1,112FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapestC$ 684AverageC$ 957FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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 United Kingdom to Ontario?

When you search for this flight from United Kingdom to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Ontario 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 United Kingdom to Ontario with no change fees?

Yes, we can. To see specific flights from United Kingdom to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for United Kingdom to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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