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

The cheapet airlines for a one-way flight from United Kingdom to Ontario are Iberia (£421), Lufthansa (£447), and Finnair (£473).

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

While some choose either Manchester - Ontario or London Gatwick - Ontario, London Heathrow - Ontario is the most popular route from United Kingdom to Ontario.

What are the most popular airlines that fly from United Kingdom to Ontario?

Before booking your flight from United Kingdom to Ontario check out the most popular airlines for this route: Finnair, British Airways or Lufthansa.

How far in advance should I book a flight from United Kingdom to Ontario?

Travelers have found it’s best to book a flight 8 days in advance to save up to 14% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 8 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from United Kingdom to Ontario 1-2 weeks in advance for as low as £463, or £575 for flights within the next 24 hours.

What is the cheapest month to fly from United Kingdom to Ontario?

Flights from United Kingdom to Ontario lean towards being more expensive in August. Prices are generally better when you fly from United Kingdom to Ontario in February, with the cheapest ticket starting at £350.

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

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

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 holiday 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.

£504+ Flights from the United Kingdom to Ontario, California

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 30 October 2024.

Tue 12/1108:20LHR - ONT

1 stop18h 13mFinnair

Fri 29/1110:43ONT - LHR

1 stop13h 32mFinnair

Deal found 29/10£438

Thu 7/1114:30LHR - ONT

1 stop16h 24mKLM

Sun 10/1111:58ONT - LHR

1 stop14h 37mKLM

Deal found 29/10£447

Sat 23/1111:00LGW - ONT

2 stops20h 57mIberia

Sat 30/1110:43ONT - LGW

2 stops24h 07mIberia

Deal found 28/10£448

Tue 31/1210:45LHR - ONT

1 stop19h 52mDelta

Tue 7/113:30ONT - LHR

1 stop12h 30mDelta

Deal found 29/10£452

Thu 31/1012:00LGW - ONT

1 stop26h 08mMultiple Airlines

Sun 3/1112:22ONT - LGW

1 stop14h 13mMultiple Airlines

Deal found 29/10£475

Tue 10/1211:35LHR - ONT

1 stop17h 12mLufthansa

Fri 27/1218:30ONT - LHR

1 stop31h 10mLufthansa

Deal found 29/10£496

Sat 9/1109:50MAN - ONT

2 stops20h 24mFinnair

Sat 16/1110:43ONT - MAN

2 stops17h 02mFinnair

Deal found 28/10£500

Wed 13/1111:10LHR - ONT

2 stops19h 13mMultiple Airlines

Wed 20/1110:35ONT - LHR

2 stops15h 35mMultiple Airlines

Deal found 29/10£504

Sun 3/1119:50MAN - ONT

2 stops31h 15mBritish Airways

Sun 10/1123:59ONT - MAN

2 stops27h 46mBritish Airways

Deal found 27/10£508

Mon 18/1113:15LHR - ONT

1 stop17h 30mVirgin Atlantic

Mon 2/1211:18ONT - LHR

1 stop15h 12mVirgin Atlantic

Deal found 29/10£516

Thu 7/1112:00MAN - ONT

1 stop18h 54mKLM

Mon 11/1106:00ONT - MAN

2 stops26h 30mKLM

Deal found 29/10£518

Sat 9/1105:55MAN - ONT

2 stops18h 21mMultiple Airlines

Wed 13/1107:10ONT - MAN

1 stop16h 25mMultiple Airlines

Deal found 28/10£526

Best flights from United Kingdom to Ontario
Discover carefully curated flight deals from United Kingdom to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2024.

Mon 11/1114:30LHR - ONT

1 stop16h 31mKLM

Mon 18/1111:53ONT - LHR

1 stop14h 42mKLM

Deal found 28/10£365

Tue 26/1106:30LHR - ONT

2 stops24h 31mDelta

Tue 3/1207:10ONT - LHR

1 stop20h 30mDelta

Deal found 29/10£373

Mon 27/106:30LHR - ONT

2 stops23h 46mIberia

Tue 11/210:51ONT - LHR

1 stop17h 14mIberia

Deal found 28/10£380

Mon 27/114:30LHR - ONT

1 stop26h 39mMultiple Airlines

Mon 17/208:52ONT - LHR

1 stop16h 48mMultiple Airlines

Deal found 28/10£387

Mon 20/109:25LHR - ONT

1 stop17h 12mBritish Airways

Sun 26/123:59ONT - LHR

1 stop22h 21mBritish Airways

Deal found 29/10£397

Tue 12/1109:25LHR - ONT

1 stop17h 08mFinnair

Sat 16/1122:38ONT - LHR

1 stop24h 22mFinnair

Deal found 29/10£398

Sun 24/1110:45LHR - ONT

1 stop13h 34mVirgin Atlantic

Tue 3/1213:18ONT - LHR

1 stop12h 42mVirgin Atlantic

Deal found 28/10£432

Wed 11/1209:25LHR - ONT

2 stops17h 02mAmerican Airlines

Tue 24/1206:05ONT - LHR

1 stop19h 35mAmerican Airlines

Deal found 28/10£437

Wed 27/1109:30LHR - ONT

2 stops20h 53mUnited Airlines

Thu 5/1206:10ONT - LHR

1 stop17h 20mUnited Airlines

Deal found 28/10£474

Fri 13/1218:00LHR - ONT

2 stops50h 40mAir Canada

Tue 24/1213:42ONT - LHR

2 stops32h 48mAir Canada

Deal found 29/10£559

Tue 10/1210:05LHR - ONT

1 stop15h 38mLufthansa

Wed 1/106:00ONT - LHR

1 stop17h 25mLufthansa

Deal found 29/10£588

Sat 23/1111:00LGW - ONT

2 stops20h 57mIberia

Sat 30/1110:43ONT - LGW

2 stops24h 07mIberia

Deal found 28/10£448

Last-minute flights from United Kingdom to Ontario
Discover last-minute flight deals from United Kingdom to Ontario. Data last updated 30 October 2024 and is based on user searches.

Thu 31/1012:00LGW - ONT

1 stop26h 08mMultiple Airlines

Sun 3/1112:22ONT - LGW

1 stop14h 13mMultiple Airlines

Deal found 29/10£475

Sun 3/1119:50MAN - ONT

2 stops31h 15mBritish Airways

Sun 10/1123:59ONT - MAN

2 stops27h 46mBritish Airways

Deal found 27/10£508

Sun 3/1110:45LGW - ONT

2 stops35h 04mBritish Airways

Sun 10/1112:53ONT - LGW

2 stops45h 57mBritish Airways

Deal found 29/10£826

Mon 4/1111:10LHR - ONT

2 stops19h 13mMultiple Airlines

Sun 10/1110:35ONT - LHR

2 stops15h 35mMultiple Airlines

Deal found 28/10£683

Mon 4/1110:05LHR - ONT

1 stop15h 38mUnited Airlines

Wed 27/1113:55ONT - LHR

1 stop14h 05mUnited Airlines

Deal found 29/10£759

Tue 5/1113:50LHR - ONT

1 stop28h 02mFinnair

Thu 21/1110:10ONT - LHR

2 stops16h 15mFinnair

Deal found 28/10£488

Tue 5/1114:30LHR - ONT

1 stop16h 19mKLM

Mon 9/1212:11ONT - LHR

1 stop14h 24mKLM

Deal found 29/10£525

Tue 5/1108:20LHR - ONT

1 stop18h 13mBritish Airways

Thu 21/1110:43ONT - LHR

1 stop12h 37mBritish Airways

Deal found 28/10£535

Thu 7/1112:00MAN - ONT

1 stop18h 54mKLM

Mon 11/1106:00ONT - MAN

2 stops26h 30mKLM

Deal found 29/10£518

Thu 7/1112:40LHR - ONT

1 stop17h 59mVirgin Atlantic

Thu 19/1207:00ONT - LHR

1 stop19h 30mVirgin Atlantic

Deal found 29/10£556

Thu 7/1115:00MAN - ONT

2 stops35h 33mFinnair

Fri 25/415:03ONT - MAN

2 stops18h 07mFinnair

Deal found 29/10£737

Fri 8/1113:50LHR - ONT

1 stop16h 24mIberia

Fri 15/1110:43ONT - LHR

1 stop12h 37mIberia

Deal found 29/10£447

One-way flights from United Kingdom to Ontario
Search for one-way flight options from United Kingdom to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 October 2024.

Thu 5/1209:20LGW - ONT

3 stops53h 54mMultiple Airlines

Deal found 29/10£303

Thu 5/1215:15LHR - ONT

3 stops40h 08mMultiple Airlines

Deal found 29/10£354

Tue 19/1108:20LHR - ONT

1 stop21h 54mIberia

Deal found 29/10£421

Wed 13/1109:20LHR - ONT

1 stop20h 42mLufthansa

Deal found 28/10£447

Tue 5/1113:50LHR - ONT

1 stop28h 02mFinnair

Deal found 28/10£473

Mon 4/1115:00LHR - ONT

2 stops30h 00mAir Canada

Deal found 29/10£528

Mon 4/1107:30LHR - ONT

2 stops22h 53mUnited Airlines

Deal found 28/10£531

Tue 12/1110:00LCY - ONT

2 stops20h 02mLufthansa

Deal found 28/10£540

Thu 7/1108:45MAN - ONT

2 stops21h 29mFinnair

Deal found 29/10£602

Tue 19/1109:00MAN - ONT

2 stops21h 23mMultiple Airlines

Deal found 28/10£608

Fri 13/1218:35EDI - ONT

3 stops47h 18mMultiple Airlines

Deal found 28/10£621

Wed 5/221:40LHR - ONT

2 stops31h 20mAvianca

Deal found 29/10£705

Find flights from United Kingdom to Ontario within your budget

Fly from

Fly to

Budget

£365 - £588

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 11/11

1 stop16h 31m

Ontario

Mon 18/11

1 stop14h 42m

£365

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 26/11

2 stops24h 31m

Ontario

Tue 3/12

1 stop20h 30m

£373

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 27/1

2 stops23h 46m

Ontario

Tue 11/2

1 stop17h 14m

£380

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 27/1

1 stop26h 39m

Ontario

Mon 17/2

1 stop16h 48m

£387

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 20/1

1 stop17h 12m

Ontario

Sun 26/1

1 stop22h 21m

£397

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 12/11

1 stop17h 08m

Ontario

Sat 16/11

1 stop24h 22m

£398

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 24/11

1 stop13h 34m

Ontario

Tue 3/12

1 stop12h 42m

£432

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/12

2 stops17h 02m

Ontario

Tue 24/12

1 stop19h 35m

£437

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Sat 23/11

2 stops20h 57m

Ontario

Sat 30/11

2 stops24h 07m

£448

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 27/11

2 stops20h 53m

Ontario

Thu 5/12

1 stop17h 20m

£474

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Fri 13/12

2 stops50h 40m

Ontario

Tue 24/12

2 stops32h 48m

£559

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/12

1 stop15h 38m

Ontario

Wed 1/1

1 stop17h 25m

£588

Flights are sorted by cheapest first

Deals found on 28/10

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 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.

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, February is the cheapest month in which you can book a flight from United Kingdom to Ontario (average of £514). Flying from United Kingdom to Ontario in August is currently the most expensive (average of £820). 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?

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

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario 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 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about Delta, United Airlines and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta

8.0

Very Good

8,845 reviews

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

KLM

7.8

Good

1,352 reviews

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Finnair

7.7

Good

1,318 reviews

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Virgin Atlantic

7.6

Good

667 reviews

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Air France

7.4

Good

1,534 reviews

Delta

8.0

Very Good

8,845 reviews

Check prices

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

What airport do you fly into for flights to Ontario from United Kingdom?
Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from United Kingdom.
What are the cheapest airlines to fly from United Kingdom to Ontario one-way?
The cheapet airlines for a one-way flight from United Kingdom to Ontario are Iberia (£421), Lufthansa (£447), and Finnair (£473).
What are the most popular routes from United Kingdom to Ontario?
While some choose either Manchester - Ontario or London Gatwick - Ontario, London Heathrow - Ontario is the most popular 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 holiday 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, February is the cheapest month in which you can book a flight from United Kingdom to Ontario (average of £514). Flying from United Kingdom to Ontario in August is currently the most expensive (average of £820). 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

Alternative routes for United Kingdom to Ontario

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Top 6 airlines flying from United Kingdom to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£368	Average£480	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£381	Average£609	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£411	Average£505	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£479	Average£521	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£508	Average£704	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£582	Average£710	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to Ontario?

Deals for United Kingdom to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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?

Need flexible booking options for your flight to Ontario from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom 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 United Kingdom today and book when prices fit your budget.

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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.

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Cheap flights from the United Kingdom to Ontario from £303

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from United Kingdom to Ontario

Cheapest flights from United Kingdom to OntarioExplore 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 30 October 2024.

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 30 October 2024.

Find flights from United Kingdom to Ontario within your budget

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.

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?

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 30 October 2024.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

Reviews of airlines servicing Ontario

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?

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

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

Can I find deals for flights from United Kingdom to Ontario that include hotel bookings?

How can I find direct flights from United Kingdom to Ontario?

Can I find deals for business class flights from United Kingdom to Ontario?

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

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.

Alternative routes for United Kingdom to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from United Kingdom to Ontario

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 United Kingdom to Ontario?

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

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

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

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Book with Flexibility

Travel Smart

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 30 October 2024.