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Cheap flights from the United Kingdom to Ontario (ONT) from $486

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 9/23. 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
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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How far in advance should I book a flight from United Kingdom to Ontario?

Users have found that booking a flight from United Kingdom to Ontario at least 50 days early can save you up to 13% on average compared to booking a flight this week. If booking 50 days before your flight isn’t an option for you, users have found flights from United Kingdom to Ontario for as little as $630 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $761 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Ontario. Flights to Ontario from United Kingdom in November are about $631 on average during November, but can be found for as low as $444.

What is the cheapest time of day to fly from GB to ONT?

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.

Cheap American Airlines flights from United Kingdom to Ontario

Explore cheap flight options specifically provided by American Airlines 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 2,784,634 searches. Data last updated May 30, 2024.
Consider these cheap American Airlines flights we've found departing from United Kingdom to Ontario. Make sure to double check the flight details before booking.
Mon 11/1112:30 pmLGW - ONT
2 stops31h 10mAmerican Airlines
Sat 11/2311:11 pmONT - LGW
2 stops48h 54mAmerican Airlines
Deal found 5/29$539
Wed 11/611:55 amLHR - ONT
1 stop13h 57mAmerican Airlines
Sun 11/1011:11 pmONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 5/30$544
Mon 9/231:05 pmLHR - ONT
1 stop14h 39mAmerican Airlines
Thu 10/312:47 pmONT - LHR
1 stop13h 53mAmerican Airlines
Deal found 5/30$546
Tue 11/1911:50 amLHR - ONT
1 stop16h 23mAmerican Airlines
Tue 12/312:51 pmONT - LHR
1 stop12h 54mAmerican Airlines
Deal found 5/29$554
Fri 11/12:25 pmLHR - ONT
1 stop14h 18mAmerican Airlines
Sun 11/1011:11 pmONT - LHR
1 stop26h 04mAmerican Airlines
Deal found 5/30$582
Mon 9/91:05 pmLHR - ONT
1 stop14h 39mAmerican Airlines
Sat 9/214:53 pmONT - LHR
1 stop12h 42mAmerican Airlines
Deal found 5/30$584
Wed 7/310:40 amLGW - ONT
2 stops19h 29mAmerican Airlines
Mon 7/811:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 5/30$588
Wed 7/312:20 pmLGW - ONT
2 stops19h 39mAmerican Airlines
Mon 7/811:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 5/29$590
Mon 9/3012:15 pmLHR - ONT
1 stop16h 27mAmerican Airlines
Mon 10/74:45 pmONT - LHR
1 stop12h 50mAmerican Airlines
Deal found 5/29$593

Cheap JetBlue flights from United Kingdom to Ontario

Explore cheap flight options specifically provided by JetBlue 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 2,784,634 searches. Data last updated May 30, 2024.
Have a look at some of the cheapest available JetBlue flights departing from United Kingdom and landing in Ontario. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 9/117:25 amLHR - ONT
1 stop22h 40mJetBlue
Wed 9/2511:36 pmONT - LHR
1 stop13h 09mJetBlue
Deal found 5/29$715
Tue 9/1011:55 amLHR - ONT
1 stop18h 26mJetBlue
Tue 9/2411:36 pmONT - LHR
1 stop13h 09mJetBlue
Deal found 5/29$720
Fri 6/77:25 amLHR - ONT
1 stop22h 44mJetBlue
Sun 6/2311:59 pmONT - LHR
1 stop25h 31mJetBlue
Deal found 5/28$1,071
Sat 6/87:25 amLHR - ONT
1 stop22h 44mJetBlue
Mon 6/2411:59 pmONT - LHR
2 stops46h 31mJetBlue
Deal found 5/29$1,093

Cheap United Kingdom to Ontario flights in May & June 2024

Find cheap flight options from United Kingdom to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the most attractive deals on flights from United Kingdom to Ontario in 2024. Check back soon for alternative fares.
Wed 6/122:30 pmLGW - ONT
2 stops27h 33mAmerican Airlines
Wed 6/1910:45 pmONT - LGW
2 stops25h 50mAmerican Airlines
Deal found 5/30$588
Wed 6/1210:40 amLGW - ONT
2 stops20h 19mAmerican Airlines
Wed 6/1910:45 pmONT - LGW
2 stops25h 50mAmerican Airlines
Deal found 5/29$590
Wed 6/1212:00 pmLHR - ONT
1 stop14h 57mBritish Airways
Wed 6/266:00 amONT - LHR
1 stop16h 25mBritish Airways
Deal found 5/30$598
Wed 6/121:05 pmLHR - ONT
1 stop17h 04mBritish Airways
Wed 6/266:00 amONT - LHR
1 stop16h 25mBritish Airways
Deal found 5/29$600
Wed 6/2610:40 amLGW - ONT
2 stops20h 19mAmerican Airlines
Wed 7/311:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 5/29$601
Wed 6/1212:15 pmLHR - ONT
2 stops17h 25mFinnair
Wed 6/2610:45 pmONT - LHR
1 stop24h 55mFinnair
Deal found 5/30$604
Wed 6/128:10 amLHR - ONT
2 stops18h 27mFinnair
Wed 6/2610:45 pmONT - LHR
1 stop24h 55mFinnair
Deal found 5/29$606
Wed 6/128:10 amLHR - ONT
2 stops18h 27mFinnair
Wed 6/267:26 pmONT - LHR
2 stops18h 14mFinnair
Deal found 5/29$607
Wed 6/59:55 amLHR - ONT
2 stops20h 42mDelta
Tue 6/115:35 amONT - LHR
2 stops20h 40mDelta
Deal found 5/29$609

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 2,784,634 searches. Data last updated May 30, 2024.
These are some of the most attractive deals on flights from United Kingdom to Ontario in 2024. Check back soon for alternative fares.
Tue 9/1712:45 pmLHR - ONT
1 stop17h 44mVirgin Atlantic
Sun 9/2912:45 pmONT - LHR
1 stop33h 40mVirgin Atlantic
Deal found 5/29$523
Tue 9/171:05 pmLHR - ONT
1 stop14h 39mFinnair
Sun 9/2911:59 pmONT - LHR
2 stops22h 21mFinnair
Deal found 5/29$529
Mon 11/1112:30 pmLGW - ONT
2 stops31h 10mAmerican Airlines
Sat 11/2311:11 pmONT - LGW
2 stops48h 54mAmerican Airlines
Deal found 5/29$539
Mon 9/91:05 pmLHR - ONT
1 stop14h 39mAmerican Airlines
Sun 9/2910:40 pmONT - LHR
1 stop29h 30mAmerican Airlines
Deal found 5/29$546
Wed 9/1811:35 amLHR - ONT
1 stop15h 47mKLM
Wed 10/91:42 pmONT - LHR
1 stop12h 18mKLM
Deal found 5/29$547
Thu 11/2812:30 pmLGW - ONT
2 stops19h 37mAmerican Airlines
Thu 12/56:37 amONT - LGW
2 stops18h 18mAmerican Airlines
Deal found 5/29$549
Tue 11/1911:50 amLHR - ONT
1 stop16h 23mAmerican Airlines
Tue 12/312:51 pmONT - LHR
1 stop12h 54mAmerican Airlines
Deal found 5/29$554
Tue 9/104:25 pmLHR - ONT
1 stop15h 01mIberia
Tue 9/2410:50 amONT - LHR
1 stop13h 10mIberia
Deal found 5/29$559
Wed 9/1111:00 amLHR - ONT
1 stop15h 30mBritish Airways
Wed 9/252:44 pmONT - LHR
1 stop14h 01mBritish Airways
Deal found 5/30$567

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 2,784,634 searches. Data last updated May 30, 2024.
Check out these flights departing soon from United Kingdom to Ontario. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 6/59:55 amLHR - ONT
2 stops20h 42mDelta
Tue 6/115:35 amONT - LHR
2 stops20h 40mDelta
Deal found 5/29$609
Wed 6/511:00 amLHR - ONT
1 stop20h 43mKLM
Tue 6/112:15 pmONT - LHR
1 stop16h 35mKLM
Deal found 5/29$626
Tue 6/44:25 pmLHR - ONT
1 stop15h 30mAmerican Airlines
Tue 6/1110:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/28$634
Sat 6/812:00 pmLHR - ONT
1 stop14h 57mAmerican Airlines
Mon 6/2410:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/30$661
Sat 6/812:00 pmLHR - ONT
1 stop14h 57mAmerican Airlines
Mon 6/2410:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/30$662
Thu 6/63:15 pmLHR - ONT
1 stop15h 44mAmerican Airlines
Thu 6/1310:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/30$663
Sat 6/812:45 pmLHR - ONT
1 stop17h 53mDelta
Mon 6/241:25 pmONT - LHR
1 stop12h 35mDelta
Deal found 5/29$665
Sat 6/812:00 pmLHR - ONT
1 stop14h 57mAmerican Airlines
Mon 6/2410:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/29$667
Sun 6/93:15 pmLHR - ONT
1 stop15h 44mAmerican Airlines
Thu 6/2710:54 amONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 5/29$671

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 2,784,634 searches. Data last updated May 30, 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. Those needing a return flight from United Kingdom to Ontario can use the search form above.
Mon 9/237:40 amLHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 5/30$486
Tue 8/207:40 amLHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 5/29$507
Sat 8/317:40 amLHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 5/30$511
Sat 8/317:40 amLHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 5/30$521
Mon 9/239:50 amLHR - ONT
3 stops32h 17mMultiple Airlines
Deal found 5/29$570
Sat 6/88:00 pmLHR - ONT
3 stops43h 08mMultiple Airlines
Deal found 5/30$594
Mon 9/2311:40 amLGW - ONT
3 stops30h 27mMultiple Airlines
Deal found 5/29$616
Tue 9/2411:35 amLGW - ONT
3 stops30h 32mMultiple Airlines
Deal found 5/29$617
Mon 9/239:40 amLGW - ONT
2 stops32h 27mMultiple Airlines
Deal found 5/29$618

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$509 - $697

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 9/24

1 stop14h 39m

Ontario

Mon 10/7

1 stop13h 44m

$509

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 9/17

1 stop17h 44m

Ontario

Sun 9/29

1 stop33h 40m

$523

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 9/17

1 stop14h 39m

Ontario

Sun 9/29

2 stops22h 21m

$529

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Mon 11/11

2 stops31h 10m

Ontario

Sat 11/23

2 stops48h 54m

$539

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 9/18

1 stop15h 47m

Ontario

Wed 10/9

1 stop12h 18m

$547

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 9/16

1 stop17h 42m

Ontario

Sun 9/22

1 stop31h 33m

$557

Newcastle upon TyneOntario

NCL - ONT

NCLONT

Newcastle upon Tyne

Tue 9/10

2 stops33h 07m

Ontario

Mon 9/30

2 stops17h 46m

$624

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 6/12

2 stops20h 43m

Ontario

Fri 7/5

1 stop22h 10m

$645

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Wed 9/11

1 stop19h 35m

Ontario

Fri 9/20

1 stop24h 19m

$697

Flights are sorted by cheapest first

Deals found on 5/30

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

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.

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 May 30, 2024.
To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about American Airlines, JetBlue and KLM. 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
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
1,520 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
1,372 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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.

JetBlue
7.6
Good
4,365 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
7.6
Good
720 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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?

    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.

  • Can I find flights from United Kingdom to Ontario for under $600 on Cheapflights?

    Yes, there are multiple flights from United Kingdom to Ontario for under $600. The cheapest flight booked recently is on British Airways for just $509, but on average you can expect to pay $561.

  • 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?

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

  • What does LHR to ONT mean?

    London Heathrow Airport is LHR and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Manchester Airport (MAN), Edinburgh Turnhouse Airport (EDI), London Gatwick Airport (LGW), Birmingham Airport (BHX), Glasgow Intl Airport (GLA).

  • 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 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.

  • 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 5/30.

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

    Currently, October is the cheapest month in which you can book a flight from United Kingdom to Ontario (average of $238). Flying from United Kingdom to Ontario in July is currently the most expensive (average of $328). 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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Top airline flying from United Kingdom to Ontario

Discover the top airline 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$465Average$702FlexibilityNo cancel feeOn-time70%
Search British Airways flights
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United Kingdom to Chicago O'Hare Intl Airport 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
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

Cheapflights makes it easy to find United Kingdom to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Ontario for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily 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?

Yes, Cheapflights offers price alerts on United Kingdom to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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