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Cheap flights from the United Kingdom to Ontario from £436

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — ONT
28 Apr — 5 May1
1 adult
Sun 28/4
Sun 5/5

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

Travelers have found it’s best to book a flight 37 days in advance to save up to 21% 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 37 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 £489, or £590 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 July. Prices are generally better when you fly from United Kingdom to Ontario in February, with the cheapest ticket starting at £309.

When is the cheapest time to fly from United Kingdom to Ontario (GB - 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.

Cheap Virgin Atlantic flights from United Kingdom to Ontario

Explore cheap flight options specifically provided by Virgin Atlantic for the route between United Kingdom and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Peruse some of the lowest-priced Virgin Atlantic flights we've found from United Kingdom to Ontario. It's recommended that users confirm their flight details before booking.
Wed 8/511:00LHR - ONT
1 stop13h 36mVirgin Atlantic
Wed 15/513:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 22/4£513
Wed 8/511:00LHR - ONT
1 stop13h 36mVirgin Atlantic
Sun 12/511:20ONT - LHR
1 stop14h 30mVirgin Atlantic
Deal found 22/4£548
Tue 14/510:55LHR - ONT
1 stop13h 41mVirgin Atlantic
Tue 28/513:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 22/4£562
Wed 15/511:00LHR - ONT
1 stop20h 43mVirgin Atlantic
Fri 31/513:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 22/4£612
Wed 29/511:00LHR - ONT
1 stop13h 36mVirgin Atlantic
Tue 4/613:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 22/4£615
Wed 12/611:00LHR - ONT
1 stop13h 16mVirgin Atlantic
Wed 26/613:25ONT - LHR
1 stop12h 35mVirgin Atlantic
Deal found 22/4£623
Tue 21/510:55LHR - ONT
1 stop13h 41mVirgin Atlantic
Fri 31/513:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 22/4£653

Cheap KLM flights from United Kingdom to Ontario

Explore cheap flight options specifically provided by KLM for the route between United Kingdom and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Browse through some of the cheapest KLM flights travelling from United Kingdom to Ontario. Deals are refreshing constantly so come back soon for more options.
Sat 11/512:45LHR - ONT
1 stop15h 21mKLM
Wed 15/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 22/4£554
Mon 6/515:55LHR - ONT
1 stop14h 44mKLM
Wed 5/613:20ONT - LHR
1 stop12h 40mKLM
Deal found 22/4£584
Tue 28/510:55LHR - ONT
1 stop13h 41mKLM
Wed 5/613:20ONT - LHR
1 stop12h 40mKLM
Deal found 22/4£619
Wed 1/511:00LHR - ONT
1 stop13h 38mKLM
Wed 8/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 23/4£667
Sun 23/610:55LHR - ONT
1 stop13h 21mKLM
Fri 5/713:25ONT - LHR
1 stop12h 35mKLM
Deal found 22/4£712
Thu 2/510:55LHR - ONT
1 stop13h 42mKLM
Fri 24/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 23/4£786
Sun 28/412:45LHR - ONT
1 stop18h 12mKLM
Sun 5/513:20ONT - LHR
2 stops33h 25mKLM
Deal found 23/4£916
Mon 29/415:55LHR - ONT
1 stop14h 45mKLM
Wed 1/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 23/4£2,224
Sun 28/410:55LHR - ONT
1 stop13h 43mKLM
Fri 3/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 23/4£9,654

Cheap United Kingdom to Ontario flights in April & May 2024

Find cheap flight options from United Kingdom to Ontario specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 928,330 searches. Prices were last updated on 23 April 2024.
Check out some of the best flight deals from United Kingdom to Ontario in 2024. More deals are always being added, so be sure to check back regularly.
Wed 8/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Wed 22/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£500
Tue 7/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Tue 14/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£508
Mon 13/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Mon 20/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 22/4£511
Tue 7/512:05LHR - ONT
2 stops18h 59mMultiple Airlines
Tue 14/505:15ONT - LHR
2 stops19h 20mMultiple Airlines
Deal found 23/4£518
Tue 7/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Sun 19/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£530
Thu 9/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Wed 22/513:36ONT - LHR
1 stop14h 44mUnited Airlines
Deal found 23/4£532
Fri 10/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Mon 13/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 22/4£542
Tue 7/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Wed 29/513:50ONT - LHR
1 stop12h 35mUnited Airlines
Deal found 23/4£561
Tue 14/510:55LHR - ONT
1 stop13h 41mVirgin Atlantic
Tue 4/613:20ONT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 23/4£572

United Kingdom to Ontario 2024 flight deals

Discover exclusive flight deals for travel between United Kingdom and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Check out some of the best flight deals from United Kingdom to Ontario in 2024. More deals are always being added, so be sure to check back regularly.
Mon 18/1111:25LGW - ONT
2 stops20h 42mAmerican Airlines
Sun 24/1123:11ONT - LGW
2 stops25h 44mAmerican Airlines
Deal found 23/4£471
Mon 23/913:40LHR - ONT
1 stop15h 51mUnited Airlines
Mon 30/913:30ONT - LHR
1 stop12h 10mUnited Airlines
Deal found 23/4£482
Mon 4/1111:35LHR - ONT
1 stop16h 42mLufthansa
Mon 11/1113:00ONT - LHR
1 stop12h 40mLufthansa
Deal found 23/4£499
Wed 8/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Wed 22/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£500
Mon 4/1110:45LHR - ONT
1 stop16h 37mKLM
Mon 11/1112:45ONT - LHR
1 stop14h 25mKLM
Deal found 23/4£506
Tue 7/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Tue 14/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£508
Mon 13/516:15LHR - ONT
1 stop14h 49mUnited Airlines
Mon 20/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 22/4£511
Mon 9/911:05LHR - ONT
1 stop14h 17mUnited Airlines
Sat 21/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 23/4£512
Wed 4/1209:20LHR - ONT
1 stop14h 26mUnited Airlines
Sun 15/1213:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 22/4£513

United Kingdom to Ontario flights leaving soon

Find last-minute flight options from United Kingdom to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Check out these flights departing soon from United Kingdom to Ontario. Users should examine the flight details to ensure there are no surprises.
Tue 30/414:50LHR - ONT
1 stop13h 50mUnited Airlines
Tue 7/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£650
Mon 29/409:30GLA - ONT
2 stops22h 27mIberia
Mon 6/514:50ONT - GLA
2 stops22h 35mIberia
Deal found 22/4£652
Tue 30/416:15LHR - ONT
1 stop14h 49mUnited Airlines
Tue 7/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 23/4£658
Wed 1/511:00LHR - ONT
1 stop13h 38mKLM
Wed 8/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 23/4£667
Thu 2/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Thu 9/510:42ONT - LHR
1 stop15h 43mUnited Airlines
Deal found 23/4£680
Thu 2/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Thu 16/513:36ONT - LHR
1 stop14h 44mUnited Airlines
Deal found 23/4£681
Thu 2/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Thu 16/513:36ONT - LHR
1 stop14h 44mUnited Airlines
Deal found 23/4£682
Thu 2/510:55LHR - ONT
1 stop13h 42mDelta
Thu 16/512:50ONT - LHR
1 stop14h 20mDelta
Deal found 23/4£697
Thu 2/510:55LHR - ONT
1 stop13h 42mAir France
Tue 7/512:50ONT - LHR
1 stop14h 20mAir France
Deal found 23/4£701

One-way flights to Ontario from United Kingdom

Search for one-way flight options from United Kingdom to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
If you're seeking multiple options on one-way flights from United Kingdom to Ontario, be sure to check out these deals, which are updated often. Users needing a return flight from United Kingdom to Ontario should utilize the search form above.
Mon 27/519:55LGW - ONT
3 stops36h 04mMultiple Airlines
Deal found 23/4£436
Fri 10/509:00GLA - ONT
3 stops44h 57mMultiple Airlines
Deal found 23/4£456
Fri 10/522:25LHR - ONT
3 stops40h 38mMultiple Airlines
Deal found 23/4£514
Mon 27/521:25LHR - ONT
3 stops30h 04mMultiple Airlines
Deal found 23/4£546
Mon 6/516:25LHR - ONT
1 stop15h 31mFinnair
Deal found 22/4£548
Sat 1/608:35GLA - ONT
2 stops32h 59mMultiple Airlines
Deal found 23/4£552
Wed 8/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 23/4£578
Wed 8/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 23/4£581
Tue 14/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 23/4£583

Find flights from United Kingdom to Ontario within your budget

Customise 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 928,330 searches. Data last updated 23 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£482 - £590

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 23/9

1 stop15h 51m

Ontario

Mon 30/9

1 stop12h 10m

£482

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/9

1 stop15h 03m

Ontario

Wed 25/9

1 stop13h 53m

£486

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/9

2 stops19h 56m

Ontario

Tue 12/11

1 stop16h 46m

£490

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/9

2 stops23h 15m

Ontario

Tue 12/11

2 stops16h 45m

£498

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/9

1 stop16h 37m

Ontario

Thu 14/11

1 stop13h 04m

£503

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 8/5

1 stop13h 36m

Ontario

Wed 15/5

1 stop12h 40m

£513

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 11/5

1 stop15h 21m

Ontario

Wed 15/5

1 stop12h 40m

£554

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/9

1 stop15h 51m

Ontario

Fri 20/9

1 stop12h 05m

£590

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Wed 12/6

2 stops19h 39m

Ontario

Wed 26/6

2 stops18h 35m

£590

Flights are sorted by cheapest first

Deals found on 23/4

No data available for this route at this time. Please check back soon.

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 23 April 2024.
To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about Virgin Atlantic, KLM and Finnair. 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
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Delta
8.1
Very Good
11,028 reviews
Delta
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

KLM
7.9
Good
1,632 reviews
Delta
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Finnair
7.8
Good
1,387 reviews
Delta
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Virgin Atlantic
7.7
Good
751 reviews
Delta
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Aeromexico
7.7
Good
2,645 reviews
Delta
8.1
Very Good
11,028 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.0

Boarding

8.2

Food

7.5

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

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?

    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 flights from United Kingdom to Ontario for under £500 on Cheapflights?

    Yes, there are multiple flights from United Kingdom to Ontario for under £500. The cheapest flight booked recently is on United Airlines for just £482, but on average you can expect to pay £503.

  • Are there last-minute flights available from United Kingdom to Ontario for under £700?

    There are currently 20+ open flights from United Kingdom to Ontario within the next 7 days for less than £700.

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

    While some choose either London Gatwick - Ontario or Manchester - 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.

  • What does LHR to ONT mean?

    This is defined as London Heathrow Airport (LHR) and Ontario Airport (ONT). Codes like Ontario Airport are often used to just call airports uniquely. Manchester Airport (MAN), Edinburgh Turnhouse Airport (EDI), London Gatwick Airport (LGW), Birmingham Airport (BHX), Glasgow Intl Airport (GLA) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from United Kingdom to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your United Kingdom to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from United Kingdom to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter United Kingdom to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from United Kingdom to Ontario that allow pets onboard?

    Many airlines flying from United Kingdom to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from United Kingdom to Ontario?

    Yes, you can often find last-minute deals on United Kingdom to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the United Kingdom to Ontario flight deals updated?

    The United Kingdom to Ontario flight deals you see on this page were last updated on 23/4.

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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Top 6 airlines flying from United Kingdom to Ontario

Discover the top 6 airlines that operate flights from United Kingdom 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 928,330 searches. Data last updated 23 April 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£384Average£675FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£396Average£597FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£432Average£516FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
FinnairCheapest£461Average£528FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£474Average£683FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£483Average£564FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
London to Krakow flights
London to Scotland flights
London to Taiwan flights
Manchester to Belfast flights
London to Amsterdam flights
London to Dalaman flights
London to Toulouse flights
Manchester to Düsseldorf flights
Bristol to Inverness flights
Manchester to Islamabad flights
London Gatwick Airport to Seville flights
United Kingdom to Coolangatta flights

Search flights from United Kingdom to Ontario by cabin class

Find flights from United Kingdom to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

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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?

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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