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Cheap flights from England to Ontario from £350

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
25 Jun — 2 Jul1
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 26 May 2026.

Tue 21/714:25
LHR
-
ONT
1 stop17h 34m
British Airways
Mon 27/712:35
ONT
-
LHR
1 stop17h 50m
British Airways
Deal found 24/5£497
Wed 7/1009:15
LHR
-
ONT
2 stops21h 51m
British Airways
Sun 11/1023:59
ONT
-
LHR
1 stop25h 01m
British Airways
Deal found 22/5£502
Tue 17/1115:00
LHR
-
ONT
1 stop15h 23m
British Airways
Wed 9/1216:47
ONT
-
LHR
1 stop12h 28m
British Airways
Deal found 22/5£504
Tue 8/911:05
LHR
-
ONT
1 stop16h 52m
United Airlines
Thu 17/909:01
ONT
-
LHR
1 stop14h 24m
United Airlines
Deal found 21/5£508
Fri 11/913:00
LHR
-
ONT
1 stop15h 01m
United Airlines
Fri 25/913:18
ONT
-
LHR
1 stop15h 07m
United Airlines
Deal found 23/5£508
Fri 11/911:25
LHR
-
ONT
1 stop17h 28m
United Airlines
Thu 24/913:18
ONT
-
LHR
1 stop12h 22m
United Airlines
Deal found 26/5£511
Tue 4/816:30
LHR
-
ONT
2 stops34h 17m
British Airways
Mon 24/814:27
ONT
-
LHR
1 stop13h 43m
British Airways
Deal found 25/5£514
Wed 12/810:05
LHR
-
ONT
1 stop16h 42m
Iberia
Wed 19/810:29
ONT
-
LHR
1 stop14h 31m
Iberia
Deal found 22/5£519
Wed 16/1215:00
LHR
-
ONT
1 stop15h 19m
British Airways
Thu 24/1216:45
ONT
-
LHR
1 stop12h 30m
British Airways
Deal found 22/5£522
Thu 24/911:30
LGW
-
ONT
2 stops19h 36m
Iberia
Thu 15/1012:35
ONT
-
LGW
2 stops23h 25m
Iberia
Deal found 25/5£548
Thu 1/1011:30
LGW
-
ONT
2 stops20h 06m
Iberia
Sat 10/1014:22
ONT
-
LGW
2 stops21h 38m
Iberia
Deal found 26/5£594
Mon 23/1119:40
LGW
-
ONT
2 stops24h 13m
Iberia
Mon 14/1210:47
ONT
-
LGW
2 stops24h 13m
Iberia
Deal found 25/5£598

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 26 May 2026.

Round-trip from

£497

One-way from

£350

Popular in

December

Cheapest in

September

Average price

£476
British Airways
  • British Airways
  • 21/7-27/7
  • 2 total stops
  • 35h 24m total
  • England to Ontario
Search Deals
7/9
  • 7/9
  • 2 total stops
  • 58h 10m total
  • England to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 26 May 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

Mon 7/9

10:35-18:11

1 stop15h 36m

Ontario

Tue 15/9

13:18-12:25

1 stop15h 07m

£508

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 4/10

14:50-20:52

1 stop14h 02m

Ontario

Wed 14/10

13:18-12:35

1 stop15h 17m

£508

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 4/9

11:00-18:15

1 stop15h 15m

Ontario

Wed 23/12

16:45-13:15

1 stop12h 30m

£552

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 17/6

15:00-22:36

1 stop15h 36m

Ontario

Wed 22/7

13:10-11:05

1 stop13h 55m

£554

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 17/6

11:00-18:21

1 stop15h 21m

Ontario

Tue 21/7

13:10-11:05

1 stop13h 55m

£554

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 15/6

11:00-18:21

1 stop15h 21m

Ontario

Tue 21/7

13:10-11:05

1 stop13h 55m

£554

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 5/11

15:00-22:23

1 stop15h 23m

Ontario

Mon 9/11

12:46-12:00

1 stop15h 14m

£554

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 15/7

06:15-17:21

2 stops19h 06m

Ontario

Wed 22/7

09:40-13:15

2 stops19h 35m

£574

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 6/8

17:00-23:11

1 stop14h 11m

Ontario

Thu 20/8

15:07-15:05

1 stop15h 58m

£583

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 17/7

06:15-18:30

2 stops20h 15m

Ontario

Thu 13/8

09:43-13:05

2 stops19h 22m

£642

Flights are sorted by cheapest return flights first.

Deals found on 24/5

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, March is the cheapest month in which you can book a flight from England to Ontario (average of £295). Flying from England to Ontario in May is currently the most expensive (average of £419). 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.

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

How far ahead should I book a flight from England to Ontario?

The best time to book flights from England to Ontario is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 15m. Fly via United Airlines, British Airways, or KLM 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, London Gatwick - Ontario or Manchester - 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, March is the cheapest month in which you can book a flight from England to Ontario (average of £295). Flying from England to Ontario in May is currently the most expensive (average of £419). 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 3 airlines flying from England to Ontario

Discover the top 3 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 26 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£368Average£426FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£372Average£478FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£386Average£518FlexibilityNo cancel feeOn-time70%
Search British Airways 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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