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Cheap flights from the United Kingdom to Ontario from C$ 414

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 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
5 May — 12 May1
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 30 April 2025.

Round-trip from

C$ 610

One-way from

C$ 414

Popular in

August

Cheapest in

February

Average price

C$ 756

Good round-trip deal

C$ 671 or less

Good one-way deal

C$ 375 or less
Air Transat
  • Air Transat
  • 3/7-14/7
  • 2 total stops
  • 23h 17m total
  • United Kingdom to Ontario
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5/5
  • 5/5
  • 1 total stop
  • 10h 10m total
  • United Kingdom to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 156 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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.
Search Deals

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 30 April 2025.

Thu 4/98:05 p.m.LHR - YYZ
1 stop21h 45mMultiple Airlines
Thu 25/912:05 p.m.YYZ - LHR
1 stop13h 25mMultiple Airlines
Deal found 29/4C$ 610
Thu 3/711:35 a.m.LGW - YTZ
1 stop13h 22mAir Transat
Mon 14/76:55 p.m.YTZ - LGW
1 stop9h 55mAir Transat
Deal found 28/4C$ 610
Fri 30/511:35 a.m.LGW - YYZ
1 stop10h 50mAir Transat
Fri 6/66:00 p.m.YYZ - LGW
1 stop10h 50mAir Transat
Deal found 28/4C$ 610
Fri 13/66:00 a.m.LHR - YTZ
2 stops18h 50mAir Canada
Fri 20/66:25 p.m.YTZ - LHR
2 stops21h 35mAir Canada
Deal found 29/4C$ 610
Sat 21/67:30 a.m.LHR - YYZ
1 stop13h 50mLufthansa
Mon 30/64:00 p.m.YYZ - LHR
1 stop9h 30mLufthansa
Deal found 28/4C$ 612
Wed 4/67:30 p.m.LHR - YYZ
1 stop23h 20mAir Canada
Sat 7/612:30 a.m.YYZ - LHR
1 stop28h 30mAir Canada
Deal found 29/4C$ 613
Mon 9/610:00 p.m.STN - YYZ
1 stop21h 10mMultiple Airlines
Mon 16/610:15 p.m.YYZ - STN
1 stop10h 45mMultiple Airlines
Deal found 28/4C$ 620
Mon 9/67:50 p.m.LTN - YYZ
1 stop23h 20mMultiple Airlines
Mon 16/610:15 p.m.YYZ - LTN
1 stop13h 40mMultiple Airlines
Deal found 28/4C$ 623
Wed 17/93:40 p.m.LGW - YYZ
1 stop11h 15mIcelandair
Wed 24/911:00 p.m.YYZ - LGW
1 stop10h 40mIcelandair
Deal found 29/4C$ 628
Wed 11/68:45 a.m.LCY - YYZ
1 stop16h 00mMultiple Airlines
Mon 16/69:10 p.m.YYZ - LCY
1 stop16h 25mMultiple Airlines
Deal found 28/4C$ 630
Tue 6/58:45 a.m.LHR - YTZ
2 stops14h 05mMultiple Airlines
Sun 11/57:20 p.m.YTZ - LHR
1 stop30h 10mMultiple Airlines
Deal found 29/4C$ 633
Thu 5/63:00 p.m.LHR - YYZ
1 stop27h 50mAustrian Airlines
Wed 11/65:00 p.m.YYZ - LHR
1 stop10h 35mAustrian Airlines
Deal found 29/4C$ 644

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 30 April 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

LGW - YTZ

LGWYTZ

London Gatwick

Thu 3/7

11:35 a.m.-7:57 p.m.

1 stop13h 22m

Toronto Island

Mon 14/7

6:55 p.m.-9:50 a.m.

1 stop9h 55m

C$ 610

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 4/9

8:05 p.m.-12:50 p.m.

1 stop21h 45m

Toronto Pearson Intl

Thu 25/9

12:05 p.m.-6:30 a.m.

1 stop13h 25m

C$ 610

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 13/6

6:00 a.m.-7:50 p.m.

2 stops18h 50m

Toronto Island

Fri 20/6

6:25 p.m.-9:00 p.m.

2 stops21h 35m

C$ 610

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Fri 30/5

11:35 a.m.-5:25 p.m.

1 stop10h 50m

Toronto Pearson Intl

Fri 6/6

6:00 p.m.-9:50 a.m.

1 stop10h 50m

C$ 610

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 21/6

7:30 a.m.-4:20 p.m.

1 stop13h 50m

Toronto Pearson Intl

Mon 30/6

4:00 p.m.-6:30 a.m.

1 stop9h 30m

C$ 612

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 4/6

7:30 p.m.-1:50 p.m.

1 stop23h 20m

Toronto Pearson Intl

Sat 7/6

12:30 a.m.-10:00 a.m.

1 stop28h 30m

C$ 613

LondonToronto

STN - YYZ

STNYYZ

London Stansted

Mon 9/6

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

1 stop21h 10m

Toronto Pearson Intl

Mon 16/6

10:15 p.m.-2:00 p.m.

1 stop10h 45m

C$ 620

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Mon 9/6

7:50 p.m.-2:10 p.m.

1 stop23h 20m

Toronto Pearson Intl

Mon 16/6

10:15 p.m.-4:55 p.m.

1 stop13h 40m

C$ 623

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 17/9

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

1 stop11h 15m

Toronto Pearson Intl

Wed 24/9

11:00 p.m.-2:40 p.m.

1 stop10h 40m

C$ 628

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 5/6

3:00 p.m.-1:50 p.m.

1 stop27h 50m

Toronto Pearson Intl

Wed 11/6

5:00 p.m.-8:35 a.m.

1 stop10h 35m

C$ 644

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

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 30 April 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.

Weekly flight availability from United Kingdom to Region of Ontario

Explore weekly flight availability from United Kingdom to Ontario. 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 30 April 2025.

The most flights from GB0 to CAON are scheduled on a Tuesday (39 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (20 on average).

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 30 April 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
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
385 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
66 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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$ 414 on WestJet. Other airlines that offer cheap prices include Air Transat from C$ 446 and TAP AIR PORTUGAL from C$ 493 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 556AverageC$ 962FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 594AverageC$ 988FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 604AverageC$ 941FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 625AverageC$ 1,002FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 644AverageC$ 991FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapestC$ 653AverageC$ 918FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
WestJetCheapestC$ 653AverageC$ 839FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Aer LingusCheapestC$ 654AverageC$ 1,190FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapestC$ 662AverageC$ 926FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapestC$ 669AverageC$ 1,077FlexibilityNo 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 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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