Cheap flights from Ontario to England from £243

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LHR
6 Aug — 13 Aug1
1 adult

Cheap flight deals from Ontario to England

Keep the following information in mind while searching for Ontario to England flight deals. Data was last updated 1 August 2025.

Round-trip from

£394

One-way from

£243

Popular in

December

Cheapest in

October

Average price

£488
Delta
  • Delta
  • 1/10-30/10
  • 3 total stops
  • 37h 30m total
  • Ontario to England
18/10
  • 18/10
  • 2 total stops
  • 25h 11m total
  • Ontario to England
Highest demand for flights based on searches. 10% potential increase in price (£48 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Ontario to England

Cheapest flights from Ontario to England
Explore the most affordable flight options available from Ontario to England. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Sun 10/811:40ONT - LHR
1 stop15h 30mVirgin Atlantic
Tue 26/810:55LHR - ONT
1 stop19h 45mVirgin Atlantic
Deal found 1/8£391
Wed 1/1011:50ONT - LHR
1 stop15h 30mDelta
Thu 30/1006:20LHR - ONT
2 stops22h 00mDelta
Deal found 31/7£394
Wed 3/911:45ONT - LHR
1 stop17h 45mKLM
Tue 16/913:05LHR - ONT
1 stop17h 18mKLM
Deal found 30/7£400
Mon 11/811:45ONT - EDI
1 stop16h 20mDelta
Tue 26/809:00EDI - ONT
1 stop18h 11mDelta
Deal found 30/7£402
Tue 19/807:05ONT - LGW
2 stops18h 55mDelta
Thu 28/812:00LGW - ONT
2 stops30h 35mDelta
Deal found 31/7£455
Fri 15/813:34ONT - LHR
1 stop14h 46mUnited Airlines
Fri 29/814:50LHR - ONT
1 stop13h 53mUnited Airlines
Deal found 31/7£474
Mon 8/907:00ONT - BHX
2 stops17h 40mUnited Airlines
Tue 23/909:20BHX - ONT
2 stops34h 53mUnited Airlines
Deal found 30/7£474
Wed 3/1208:48ONT - MAN
2 stops18h 07mBritish Airways
Wed 10/1219:30MAN - ONT
2 stops34h 07mBritish Airways
Deal found 30/7£478
Tue 19/823:59ONT - LGW
2 stops24h 11mMultiple Airlines
Fri 3/1015:05LGW - ONT
2 stops28h 51mMultiple Airlines
Deal found 30/7£478
Mon 8/916:45ONT - LHR
1 stop12h 05mAmerican Airlines
Wed 24/912:00LHR - ONT
1 stop14h 54mAmerican Airlines
Deal found 1/8£487
Wed 22/1016:49ONT - LHR
1 stop12h 01mBritish Airways
Tue 28/1008:20LHR - ONT
1 stop15h 06mBritish Airways
Deal found 30/7£490
Sun 31/805:10ONT - EDI
2 stops43h 55mAir Canada
Wed 17/909:00EDI - ONT
2 stops43h 43mAir Canada
Deal found 30/7£490

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to England 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 1 August 2025.
Use the filters below to find and compare flights from Ontario to England that are best for you.

Fly from

Ontario

Fly to

England

Route

Depart

Return

Price

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Wed 1/10

11:50-11:20

1 stop15h 30m

London Heathrow

Thu 30/10

06:20-21:20

2 stops22h 00m

£394

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Wed 3/9

11:45-13:30

1 stop17h 45m

London Heathrow

Tue 16/9

13:05-22:23

1 stop17h 18m

£400

OntarioEdinburgh

ONT - EDI

ONTEDI

Ontario

Mon 11/8

11:45-12:05

1 stop16h 20m

Edinburgh Turnhouse

Tue 26/8

09:00-19:11

1 stop18h 11m

£402

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Tue 26/8

07:05-07:15

1 stop16h 10m

London Heathrow

Sun 7/9

06:30-22:40

2 stops24h 10m

£434

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 19/8

07:05-10:00

2 stops18h 55m

London Gatwick

Thu 28/8

12:00-10:35

2 stops30h 35m

£455

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Fri 15/8

13:34-12:20

1 stop14h 46m

London Heathrow

Fri 29/8

14:50-20:43

1 stop13h 53m

£474

OntarioBirmingham

ONT - BHX

ONTBHX

Ontario

Mon 8/9

07:00-08:40

2 stops17h 40m

Birmingham

Tue 23/9

09:20-12:13

2 stops34h 53m

£474

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Wed 3/12

08:48-10:55

2 stops18h 07m

Manchester

Wed 10/12

19:30-21:37

2 stops34h 07m

£478

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 19/8

23:59-08:10

2 stops24h 11m

London Gatwick

Fri 3/10

15:05-11:56

2 stops28h 51m

£478

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Mon 8/9

16:45-12:50

1 stop12h 05m

London Heathrow

Wed 24/9

12:00-18:54

1 stop14h 54m

£487

Flights are sorted by cheapest return flights first.

Deals found on 31/7

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ontario to England

Have a flexible travel schedule? Discover the best time to fly to England 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to England

What is the cheapest month to book a flight from Ontario to England?

Currently, January is the cheapest month in which you can book a flight from Ontario to England (average of £112). Flying from Ontario to England in August is currently the most expensive (average of £164). 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 ONT to ENG?

Find hourly flight availability from Ontario to England. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2025.

When flying from Ontario to England, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Ontario to England?

Reviews of airlines servicing England

Get insights into the airlines that provide service to England. 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 England. Reviews last updated 1 August 2025.
Get a feel of what it's like to fly with Delta, KLM, andAir France from Ontario to England by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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.
8.0
Very Good

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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.

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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.

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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.

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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.

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

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 England. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Ontario to England?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to England from Ontario.

  • What are the cheapest airlines to fly from Ontario to England one-way?

    One-way options have recently been found by users for as low as £289 on British Airways. Other airlines that offer cheap prices include Air France from £300 and JetBlue from £301 one-way.

  • What are the most popular routes from Ontario to England?

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

    Yes. In addition to deals on Ontario to England flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ontario to England?

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

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

    Yes. Cheapflights offers flight deals from Ontario to England 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 Ontario to England?

    Currently, January is the cheapest month in which you can book a flight from Ontario to England (average of £112). Flying from Ontario to England in August is currently the most expensive (average of £164). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 England?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to England. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to England flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Ontario to England 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.