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Cheap flights from England to Ontario from £335

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from England to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from England to Ontario
Explore the most affordable flight options available from England to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Mon 30/310:35
LHR
-
ONT
1 stop15h 12m
United Airlines
Sat 25/407:00
ONT
-
LHR
1 stop17h 30m
United Airlines
Deal found 9/3£362
Mon 20/407:25
LHR
-
ONT
2 stops18h 22m
United Airlines
Mon 27/406:00
ONT
-
LHR
1 stop17h 25m
United Airlines
Deal found 6/3£402
Wed 15/410:50
LHR
-
ONT
2 stops19h 55m
United Airlines
Wed 29/418:49
ONT
-
LHR
1 stop28h 36m
United Airlines
Deal found 7/3£412
Mon 27/409:30
LHR
-
ONT
2 stops20h 20m
United Airlines
Sat 9/513:30
ONT
-
LHR
1 stop13h 40m
United Airlines
Deal found 6/3£413
Wed 22/410:50
LHR
-
ONT
2 stops19h 55m
United Airlines
Wed 29/413:27
ONT
-
LHR
1 stop13h 43m
United Airlines
Deal found 8/3£414
Thu 23/409:30
LHR
-
ONT
2 stops20h 20m
United Airlines
Thu 30/407:00
ONT
-
LHR
2 stops19h 40m
United Airlines
Deal found 9/3£414
Mon 23/1115:00
LHR
-
ONT
1 stop15h 23m
British Airways
Mon 7/1216:47
ONT
-
LHR
1 stop12h 28m
British Airways
Deal found 8/3£419
Tue 10/1115:00
LHR
-
ONT
1 stop15h 23m
British Airways
Sun 29/1116:47
ONT
-
LHR
1 stop12h 28m
British Airways
Deal found 7/3£421
Fri 13/313:45
LHR
-
ONT
1 stop16h 12m
United Airlines
Mon 16/313:40
ONT
-
LHR
1 stop15h 20m
United Airlines
Deal found 6/3£423
Mon 16/311:35
LHR
-
ONT
1 stop16h 15m
United Airlines
Mon 30/313:34
ONT
-
LHR
1 stop14h 51m
United Airlines
Deal found 9/3£424
Fri 17/410:05
LHR
-
ONT
1 stop14h 17m
British Airways
Sun 3/510:54
ONT
-
LHR
1 stop13h 11m
British Airways
Deal found 10/3£425
Thu 19/311:35
LHR
-
ONT
1 stop16h 15m
United Airlines
Tue 24/313:50
ONT
-
LHR
1 stop12h 50m
United Airlines
Deal found 8/3£426

Find flight deals from England to Ontario

Keep the following information in mind while searching for England to Ontario flight deals. Data was last updated 11 March 2026.

Round-trip from

£362

One-way from

£335

Popular in

December

Cheapest in

September

Average price

£455
United Airlines
  • United Airlines
  • 30/3-25/4
  • 2 total stops
  • 32h 42m total
  • England to Ontario
Search Deals
16/3
  • 16/3
  • 2 total stops
  • 29h 38m total
  • England to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from England 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 858,174 searches. Data last updated 11 March 2026.
Use the filters below to find and compare flights from England to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 25/4

10:35-17:47

1 stop15h 12m

Ontario

Sat 2/5

13:30-11:10

1 stop13h 40m

£435

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 16/4

16:15-22:45

1 stop14h 30m

Ontario

Tue 5/5

13:30-11:10

1 stop13h 40m

£435

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 14/5

14:10-22:35

1 stop16h 25m

Ontario

Mon 18/5

13:30-11:10

1 stop13h 40m

£436

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 1/5

14:50-20:36

1 stop13h 46m

Ontario

Tue 5/5

18:59-21:35

2 stops18h 36m

£436

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 3/4

14:50-20:36

1 stop13h 46m

Ontario

Tue 21/4

13:34-12:25

1 stop14h 51m

£449

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 27/4

14:50-20:36

1 stop13h 46m

Ontario

Wed 27/5

13:18-12:20

1 stop15h 02m

£449
Fastest return journey

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 17/6

14:50-20:42

1 stop13h 52m

Ontario

Mon 22/6

13:50-11:10

1 stop13h 20m

£459

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 25/6

14:50-20:42

1 stop13h 52m

Ontario

Sun 28/6

13:18-12:20

1 stop15h 02m

£461

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 3/6

13:40-21:55

1 stop16h 15m

Ontario

Wed 24/6

13:18-09:40

1 stop12h 22m

£461

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 7/4

10:35-22:34

2 stops19h 59m

Ontario

Tue 14/4

14:20-16:00

2 stops17h 40m

£502

Flights are sorted by cheapest return flights first.

Deals found on 6/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from England to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from England to Ontario (average of £238). Flying from England to Ontario in July is currently the most expensive (average of £385). 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.

Related info for your journey

Find useful and relevant information for your journey from England to Ontario. 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 into for flights to Ontario from England?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from England. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from England to Ontario?

    There are many flights that can get you from England to Ontario in 15h 12m. Fly via United Airlines, Delta, or British Airways to get the fastest option. England and Ontario are separated by a distance of 5407 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from England to Ontario consider London Heathrow - Ontario, Manchester - Ontario or London Gatwick - Ontario as they are the most popular.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from England to Ontario (average of £238). Flying from England to Ontario in July is currently the most expensive (average of £385). 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 England to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from England to Ontario

Discover the top 5 airlines that operate flights from England 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 858,174 searches. Data last updated 11 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£369Average£464FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£374Average£503FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£379Average£561FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£466Average£615FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£479Average£771FlexibilityNo 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 England to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from England to Ontario. 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 England to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from England to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from England to Ontario with no change fees?

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from England today and book when prices fit your budget.

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