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Ontario

$352+ Cheap flights from the United Kingdom to Ontario (ONT)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
nov. 26 — dic. 31
mar. 11/26
mar. 12/3
1 adult, Economy
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Cheap flight deals from United Kingdom to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from United Kingdom (GB0) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 21, 2024.

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 noviembre 21, 2024.

This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/48:00 pmLHR - ONT
2 stops34h 13mMultiple Airlines
mar. 12/106:05 amONT - LHR
1 stop19h 35mMultiple Airlines
Deal found 11/20$561
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/46:20 amLHR - ONT
2 stops18h 25mDelta
mar. 12/106:00 amONT - LHR
2 stops17h 05mDelta
Deal found 11/20$566
This Trip.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/512:00 pmLGW - ONT
1 stop15h 59mMultiple Airlines
dom. 12/88:04 amONT - LGW
1 stop18h 31mMultiple Airlines
Deal found 11/20$613
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/118:00 amLHR - ONT
2 stops21h 42mUnited Airlines
mar. 12/246:10 amONT - LHR
2 stops21h 05mUnited Airlines
Deal found 11/20$647
This Air France deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1010:45 amLHR - ONT
1 stop13h 45mAir France
mar. 1/141:00 pmONT - LHR
1 stop13h 35mAir France
Deal found 11/19$655
This KLM deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/92:30 pmLHR - ONT
1 stop16h 32mKLM
mar. 1/211:00 pmONT - LHR
1 stop13h 35mKLM
Deal found 11/20$656
This Iberia deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/51:50 pmLHR - ONT
1 stop16h 23mIberia
lun. 12/910:41 amONT - LHR
1 stop12h 39mIberia
Deal found 11/21$693
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/118:20 amLHR - ONT
2 stops18h 07mAmerican Airlines
lun. 12/234:25 pmONT - LHR
1 stop12h 55mAmerican Airlines
Deal found 11/20$699
This The Travel House deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/51:50 pmLHR - ONT
1 stop16h 23mFinnair
vie. 12/1310:41 amONT - LHR
1 stop12h 39mFinnair
Deal found 11/21$705
This TravelJunction deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelJunction is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/101:45 pmLHR - ONT
1 stop18h 13mLufthansa
mié. 1/156:15 amONT - LHR
1 stop17h 10mLufthansa
Deal found 11/19$720
This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/45:00 pmLCY - ONT
2 stops33h 38mBritish Airways
mar. 12/107:16 amONT - LCY
2 stops19h 34mBritish Airways
Deal found 11/20$804
This Justfly.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/131:00 pmLHR - ONT
2 stops42h 58mAir Canada
mar. 12/241:42 pmONT - LHR
2 stops32h 48mAir Canada
Deal found 11/20$807

Find flights from United Kingdom to Ontario within your budget

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 2,612,795 searches. Data last updated noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mié. 12/4

8:00 pm-10:13 pm

2 stops34h 13m

Ontario

mar. 12/10

6:05 am-9:40 am

1 stop19h 35m

$561

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mié. 12/4

6:20 am-4:45 pm

2 stops18h 25m

Ontario

mar. 12/10

6:00 am-7:05 am

2 stops17h 05m

$566

LondonOntario

LGW - ONT

LGWONT

London Gatwick

lun. 1/27

12:30 pm-6:37 pm

2 stops38h 07m

Ontario

lun. 2/3

6:00 am-6:50 pm

2 stops28h 50m

$599

LondonOntario

LGW - ONT

LGWONT

London Gatwick

dom. 1/12

12:00 pm-7:56 pm

1 stop15h 56m

Ontario

lun. 1/27

9:36 pm-10:35 am

1 stop28h 59m

$603

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mar. 3/18

10:05 am-6:04 pm

1 stop14h 59m

Ontario

mar. 3/25

1:40 pm-9:40 am

1 stop13h 00m

$615

LondonOntario

LHR - ONT

LHRONT

London Heathrow

lun. 1/27

1:15 pm-10:32 pm

1 stop17h 17m

Ontario

lun. 2/3

1:00 pm-10:35 am

1 stop13h 35m

$619

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mar. 1/14

10:45 am-4:28 pm

1 stop13h 43m

Ontario

mié. 1/22

1:00 pm-10:35 am

1 stop13h 35m

$621

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mié. 1/29

10:05 am-6:04 pm

1 stop15h 59m

Ontario

jue. 2/13

1:00 pm-12:00 pm

1 stop15h 00m

$630

LondonOntario

LHR - ONT

LHRONT

London Heathrow

mar. 12/10

10:45 am-4:30 pm

1 stop13h 45m

Ontario

mar. 1/14

1:00 pm-10:35 am

1 stop13h 35m

$655

LondonOntario

LHR - ONT

LHRONT

London Heathrow

jue. 2/20

1:50 pm-10:00 pm

1 stop16h 10m

Ontario

jue. 2/27

10:51 am-8:15 am

1 stop13h 24m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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.

Travel insights for flights from United Kingdom to Ontario

Get recent, data-driven insights about flights from United Kingdom to Ontario including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Ontario (average of $236). Flying from United Kingdom to Ontario in December is currently the most expensive (average of $298). 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 ONT?

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 noviembre 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Ontario as you normally would.

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 Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

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 Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 noviembre 21, 2024.
To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about KLM, Delta and Finnair. 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
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,755 reviews
Delta
8.0
Very good
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very good
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,525 reviews
Delta
8.0
Very good
8,755 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 airport do you fly into for flights to Ontario from United Kingdom?

    If you book a flight to Ontario from United Kingdom, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $664. However, be on the lookout for offers from Air Canada and Lufthansa, as they are both options that can get you from United Kingdom to Ontario for a low price.

  • What are the most popular routes from United Kingdom to Ontario?

    Most travelers choose London Heathrow - Ontario, Manchester - Ontario or London Gatwick - Ontario when deciding on the best route from United Kingdom to Ontario.

  • 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 Ontario?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to Ontario (average of $236). Flying from United Kingdom to Ontario in December is currently the most expensive (average of $298). 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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