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Cheap flights from the United Kingdom to Ontario from C$ 504

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
13 Jan — 20 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ontario

Enter your travel dates to find the best prices.

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 14 December 2025.

Wed 24/126:30 p.m.LHR - YYZ
1 stop25h 15mTAP AIR PORTUGAL
Sun 18/110:45 p.m.YYZ - LHR
1 stop13h 45mTAP AIR PORTUGAL
Deal found 13/12C$ 770
Mon 15/127:30 a.m.LHR - YYZ
1 stop13h 45mLufthansa
Tue 13/18:25 p.m.YYZ - LHR
Nonstop7h 05mLufthansa
Deal found 13/12C$ 781
Wed 24/129:05 a.m.LHR - YYZ
2 stops40h 25mAustrian Airlines
Fri 16/111:10 p.m.YYZ - LHR
1 stop27h 00mAustrian Airlines
Deal found 13/12C$ 783
Wed 24/126:00 p.m.LHR - YYZ
Nonstop8h 10mAir Canada
Tue 20/18:25 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Deal found 13/12C$ 788
Wed 24/126:00 p.m.LHR - YYZ
Nonstop8h 10mAir Canada
Tue 13/16:10 p.m.YYZ - LHR
Nonstop7h 20mAir Canada
Deal found 13/12C$ 789
Mon 15/129:00 a.m.LHR - YYZ
1 stop13h 40mAir Canada
Thu 15/18:25 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Deal found 12/12C$ 790
Mon 15/129:30 a.m.LHR - YYZ
1 stop11h 45mLufthansa
Wed 14/15:30 p.m.YYZ - LHR
1 stop10h 50mLufthansa
Deal found 13/12C$ 795
Wed 17/126:30 a.m.LHR - YYZ
1 stop14h 45mMultiple Airlines
Sun 18/111:10 p.m.YYZ - LHR
1 stop27h 00mMultiple Airlines
Deal found 12/12C$ 799
Tue 16/126:00 a.m.LHR - YTZ
2 stops16h 55mSWISS
Tue 13/112:30 p.m.YTZ - LHR
2 stops17h 45mSWISS
Deal found 13/12C$ 799
Mon 15/126:30 a.m.LHR - YYZ
1 stop11h 35mLufthansa
Wed 24/125:30 p.m.YYZ - LHR
1 stop10h 50mLufthansa
Deal found 13/12C$ 801
Mon 15/129:30 a.m.LHR - YYZ
1 stop11h 45mLufthansa
Wed 21/15:00 p.m.YYZ - LHR
1 stop9h 10mLufthansa
Deal found 12/12C$ 803
Thu 25/1211:40 a.m.LGW - YUL
1 stop26h 40mAir Transat
Fri 27/26:20 p.m.YUL - LGW
1 stop10h 25mAir Transat
Deal found 12/12C$ 803

Find 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 14 December 2025.

Round-trip from

C$ 723

One-way from

C$ 504

Popular in

December

Cheapest in

February

Average price

C$ 1,026

Good round-trip deal

C$ 698 or less

Good one-way deal

C$ 478 or less
Lufthansa
  • Lufthansa
  • 16/1-23/1
  • 1 total stop
  • 19h 45m total
  • United Kingdom to Ontario
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 9/2
  • Nonstop
  • 8h 30m total
  • United Kingdom to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Ontario.
Search Deals
Price to beat on a one-way flight from United Kingdom to Ontario.
Search Deals

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 14 December 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 - YYZ

LGWYYZ

London Gatwick

Sun 11/1

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

Nonstop8h 20m

Toronto Pearson Intl

Sat 17/1

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

Nonstop7h 10m

C$ 724

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Wed 22/4

3:40 p.m.-10:10 p.m.

1 stop11h 30m

Toronto Pearson Intl

Thu 30/4

11:20 p.m.-11:45 a.m.

1 stop31h 25m

C$ 724

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Thu 8/1

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

Nonstop8h 20m

Toronto Pearson Intl

Tue 13/1

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

Nonstop7h 10m

C$ 724

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Thu 8/1

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

Nonstop8h 20m

Toronto Pearson Intl

Mon 12/1

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

Nonstop7h 10m

C$ 724

LondonToronto

LGW - YYZ

LGWYYZ

London Gatwick

Tue 21/4

3:40 p.m.-7:10 p.m.

1 stop32h 30m

Toronto Pearson Intl

Thu 30/4

11:20 p.m.-11:45 a.m.

1 stop31h 25m

C$ 726

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 24/4

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

1 stop29h 45m

Toronto Pearson Intl

Thu 30/4

8:45 p.m.-8:20 p.m.

1 stop18h 35m

C$ 728

LondonToronto

STN - YYZ

STNYYZ

London Stansted

Tue 27/1

6:05 p.m.-2:45 p.m.

2 stops25h 40m

Toronto Pearson Intl

Fri 30/1

5:15 p.m.-10:35 p.m.

2 stops24h 20m

C$ 734

LondonToronto

LTN - YYZ

LTNYYZ

London Luton

Thu 29/1

10:05 a.m.-12:35 p.m.

1 stop31h 30m

Toronto Pearson Intl

Thu 5/2

6:50 p.m.-8:30 p.m.

1 stop20h 40m

C$ 737

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 9/1

12:00 p.m.-6:13 p.m.

1 stop11h 13m

Toronto Island

Sat 17/1

12:30 p.m.-8:05 a.m.

2 stops14h 35m

C$ 738

LondonToronto

LHR - YTZ

LHRYTZ

London Heathrow

Fri 1/5

8:45 a.m.-10:07 a.m.

2 stops30h 22m

Toronto Island

Mon 11/5

10:20 a.m.-9:00 p.m.

2 stops29h 40m

C$ 739

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/12

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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 106). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of C$ 693). 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 14 December 2025.

It’s optimal to fly from United Kingdom to Region of Ontario in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from United Kingdom to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from United Kingdom to Ontario. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their United Kingdom to Region of Ontario flight should consider departing on Monday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 14 December 2025.

The most flights from GB0 to CAON are scheduled on a Friday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 on average).

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 14 December 2025.
Read reviews from past customers who have flown Air Transat,Virgin Atlantic, andAir Canada from the United Kingdom to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
482 reviews
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Virgin Atlantic
7.5
Good
675 reviews
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,525 reviews
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Lufthansa
6.8
Okay
7,628 reviews
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
British Airways
6.7
Okay
7,574 reviews
Air Transat
7.8
Good
482 reviews
Check prices

Boarding

7.9

Overall

7.8

Crew

8.4

Food

6.8

Entertainment

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

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.

  • How long is the flight from United Kingdom to Region of Ontario?

    Departing from United Kingdom to Region of Ontario will take you 8h 20m. The distance from United Kingdom to Region of Ontario is about 5734 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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$ 262 on WestJet. Other airlines that offer cheap prices include Iberia from C$ 327 and Air Transat from C$ 342 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, August is the cheapest month in which you can book a flight from United Kingdom to Region of Ontario (average of C$ 106). Flying from United Kingdom to Region of Ontario in December is currently the most expensive (average of C$ 693). 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

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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 14 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 438AverageC$ 1,148FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 544AverageC$ 831FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapestC$ 566AverageC$ 916FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air TransatCheapestC$ 587AverageC$ 934FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 636AverageC$ 997FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 638AverageC$ 951FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapestC$ 650AverageC$ 881FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 651AverageC$ 1,010FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapestC$ 658AverageC$ 950FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
WestJetCheapestC$ 692AverageC$ 921FlexibilityNo cancel feeOn-time60%
Search WestJet 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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