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Cheap flights from the United Kingdom to Ontario (ONT) from $604

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 8/12. 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
May 24 — May 311
From?
To?
Fri 5/24
Fri 5/31
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 $628 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 $763 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 $633 on average during November, but can be found for as low as $444.

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

Explore cheap flight options specifically provided by United 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 2,634,509 searches. Data last updated May 19, 2024.
Consider these cheap United Airlines flights we've found departing from United Kingdom to Ontario. Make sure to double check the flight details before booking.
Tue 10/2910:05 amLHR - ONT
1 stop14h 35mUnited Airlines
Tue 11/121:00 pmONT - LHR
1 stop12h 40mUnited Airlines
Deal found 5/18$612
Wed 11/1310:25 amLHR - ONT
2 stops18h 00mUnited Airlines
Sun 11/176:35 pmONT - LHR
1 stop28h 50mUnited Airlines
Deal found 5/17$622
Wed 11/1310:00 amLHR - ONT
2 stops18h 25mUnited Airlines
Sun 11/176:35 pmONT - LHR
1 stop28h 50mUnited Airlines
Deal found 5/18$623
Mon 9/94:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Sun 9/221:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Deal found 5/18$650
Wed 11/1310:25 amLHR - ONT
2 stops18h 00mUnited Airlines
Sun 11/175:15 amONT - LHR
2 stops18h 40mUnited Airlines
Deal found 5/18$651
Fri 9/1310:25 amLHR - ONT
1 stop15h 31mUnited Airlines
Sun 9/291:30 pmONT - LHR
1 stop12h 10mUnited Airlines
Deal found 5/18$688
Wed 9/111:40 pmLHR - ONT
1 stop15h 51mUnited Airlines
Mon 9/161:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Deal found 5/18$697
Fri 9/611:05 amLHR - ONT
1 stop14h 17mUnited Airlines
Tue 9/241:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Deal found 5/18$726
Sun 8/2511:05 amLHR - ONT
1 stop14h 17mUnited Airlines
Wed 9/257:40 amONT - LHR
1 stop15h 15mUnited Airlines
Deal found 5/18$735

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 2,634,509 searches. Data last updated May 19, 2024.
Have a look at some of the cheapest available American Airlines 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.
Thu 11/1411:25 amLGW - ONT
2 stops20h 42mAmerican Airlines
Mon 11/1811:11 pmONT - LGW
2 stops24h 19mAmerican Airlines
Deal found 5/17$635
Thu 11/143:00 pmLGW - ONT
2 stops30h 44mAmerican Airlines
Mon 11/1811:59 pmONT - LGW
2 stops24h 06mAmerican Airlines
Deal found 5/18$636
Wed 6/1212:20 pmLGW - ONT
2 stops19h 39mAmerican Airlines
Wed 6/1911:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 5/18$786
Tue 10/111:05 amABZ - ONT
2 stops20h 21mAmerican Airlines
Thu 3/2711:02 amONT - ABZ
2 stops22h 03mAmerican Airlines
Deal found 5/18$801
Thu 5/307:00 amMAN - ONT
2 stops19h 22mAmerican Airlines
Thu 6/610:54 amONT - MAN
2 stops16h 46mAmerican Airlines
Deal found 5/16$946
Mon 5/2711:30 amLHR - ONT
2 stops20h 26mAmerican Airlines
Tue 6/49:30 amONT - LHR
2 stops17h 45mAmerican Airlines
Deal found 5/17$981

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 2,634,509 searches. Prices were last updated on May 19, 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 6/183:50 pmLHR - ONT
2 stops33h 38mUnited Airlines
Tue 6/255:15 amONT - LHR
1 stop20h 25mUnited Airlines
Deal found 5/19$756
Tue 6/183:50 pmLHR - ONT
2 stops33h 38mUnited Airlines
Tue 6/255:15 amONT - LHR
2 stops21h 25mUnited Airlines
Deal found 5/19$761
Mon 6/1712:20 pmLHR - ONT
1 stop18h 07mUnited Airlines
Mon 6/246:00 amONT - LHR
1 stop17h 40mUnited Airlines
Deal found 5/18$764
Tue 6/251:40 pmLHR - ONT
1 stop15h 34mLufthansa
Sun 6/306:25 pmONT - LHR
1 stop31h 15mLufthansa
Deal found 5/18$766
Tue 6/1810:40 amLGW - ONT
2 stops20h 19mAmerican Airlines
Tue 6/256:00 amONT - LGW
2 stops18h 10mAmerican Airlines
Deal found 5/19$772
Mon 6/172:50 pmLHR - ONT
1 stop13h 58mUnited Airlines
Mon 6/246:00 amONT - LHR
1 stop17h 40mUnited Airlines
Deal found 5/18$773
Wed 6/1212:20 pmLGW - ONT
2 stops19h 39mAmerican Airlines
Wed 6/1911:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 5/18$786
Wed 6/1911:00 amLHR - ONT
1 stop13h 16mKLM
Wed 6/261:25 pmONT - LHR
1 stop12h 35mKLM
Deal found 5/18$787
Tue 6/181:40 pmLHR - ONT
1 stop15h 34mUnited Airlines
Wed 7/31:30 pmONT - LHR
1 stop14h 50mUnited Airlines
Deal found 5/18$806

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 2,634,509 searches. Data last updated May 19, 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 10/2910:05 amLHR - ONT
1 stop14h 35mUnited Airlines
Tue 11/121:00 pmONT - LHR
1 stop12h 40mUnited Airlines
Deal found 5/18$612
Tue 9/101:40 pmLHR - ONT
1 stop15h 51mUnited Airlines
Tue 9/241:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Deal found 5/19$613
Wed 11/1310:25 amLHR - ONT
2 stops18h 00mUnited Airlines
Sun 11/176:35 pmONT - LHR
1 stop28h 50mUnited Airlines
Deal found 5/17$622
Wed 11/1310:00 amLHR - ONT
2 stops18h 25mUnited Airlines
Sun 11/176:35 pmONT - LHR
1 stop28h 50mUnited Airlines
Deal found 5/18$623
Thu 11/1411:25 amLGW - ONT
2 stops20h 42mAmerican Airlines
Mon 11/1811:11 pmONT - LGW
2 stops24h 19mAmerican Airlines
Deal found 5/17$635
Thu 11/143:00 pmLGW - ONT
2 stops30h 44mAmerican Airlines
Mon 11/1811:59 pmONT - LGW
2 stops24h 06mAmerican Airlines
Deal found 5/18$636
Mon 9/94:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Sun 9/221:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Deal found 5/18$650
Wed 11/1310:25 amLHR - ONT
2 stops18h 00mUnited Airlines
Sun 11/175:15 amONT - LHR
2 stops18h 40mUnited Airlines
Deal found 5/18$651
Tue 9/174:25 pmLHR - ONT
1 stop15h 01mIberia
Tue 9/2410:50 amONT - LHR
1 stop13h 10mIberia
Deal found 5/18$654

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 2,634,509 searches. Data last updated May 19, 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.
Thu 5/307:00 amMAN - ONT
2 stops19h 22mAmerican Airlines
Thu 6/610:54 amONT - MAN
2 stops16h 46mAmerican Airlines
Deal found 5/16$946
Sat 5/2512:45 pmLHR - ONT
1 stop17h 53mVirgin Atlantic
Thu 5/3011:20 amONT - LHR
1 stop14h 30mVirgin Atlantic
Deal found 5/18$975
Tue 5/284:15 pmLHR - ONT
1 stop28h 30mUnited Airlines
Tue 6/185:15 amONT - LHR
1 stop23h 05mUnited Airlines
Deal found 5/18$977
Tue 5/2811:05 amLHR - ONT
1 stop14h 23mUnited Airlines
Tue 6/46:25 pmONT - LHR
1 stop33h 55mUnited Airlines
Deal found 5/19$979
Mon 5/2711:30 amLHR - ONT
2 stops20h 26mAmerican Airlines
Tue 6/49:30 amONT - LHR
2 stops17h 45mAmerican Airlines
Deal found 5/17$981
Mon 5/2712:45 pmLHR - ONT
1 stop15h 21mDelta
Tue 6/111:25 pmONT - LHR
1 stop12h 35mDelta
Deal found 5/19$1,001
Sat 5/251:40 pmLHR - ONT
1 stop15h 23mMultiple Airlines
Thu 5/305:15 amONT - LHR
2 stops17h 15mMultiple Airlines
Deal found 5/18$1,004
Sat 5/2510:25 amLHR - ONT
1 stop20h 02mUnited Airlines
Thu 5/305:15 amONT - LHR
1 stop20h 25mUnited Airlines
Deal found 5/18$1,015
Sat 5/254:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Sun 6/26:25 pmONT - LHR
1 stop31h 15mUnited Airlines
Deal found 5/18$1,025

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 2,634,509 searches. Data last updated May 19, 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 8/125:05 pmLGW - ONT
2 stops45h 31mMultiple Airlines
Deal found 5/18$604
Tue 9/1011:35 amLGW - ONT
3 stops30h 32mMultiple Airlines
Deal found 5/18$612
Tue 9/1010:30 amLGW - ONT
1 stop19h 51mJetBlue
Deal found 5/18$727
Wed 9/2510:30 amLGW - ONT
1 stop19h 35mJetBlue
Deal found 5/18$735
Mon 9/910:30 amLGW - ONT
1 stop19h 51mJetBlue
Deal found 5/18$739
Wed 9/410:30 amLGW - ONT
1 stop19h 35mJetBlue
Deal found 5/18$755
Mon 8/1211:10 amLGW - ONT
3 stops29h 56mMultiple Airlines
Deal found 5/18$759
Mon 8/121:55 pmLHR - ONT
2 stops30h 52mMultiple Airlines
Deal found 5/18$765
Wed 6/510:30 amLGW - ONT
1 stop19h 39mJetBlue
Deal found 5/18$766

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 2,634,509 searches. Data last updated May 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$612 - $816

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/29

1 stop14h 35m

Ontario

Tue 11/12

1 stop12h 40m

$612

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Thu 11/14

2 stops20h 42m

Ontario

Mon 11/18

2 stops24h 19m

$635

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 9/17

1 stop15h 01m

Ontario

Tue 9/24

1 stop13h 10m

$654

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 10/27

1 stop16h 48m

Ontario

Mon 11/4

1 stop16h 46m

$671

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Fri 10/25

2 stops20h 02m

Ontario

Mon 11/4

2 stops17h 15m

$749

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 6/25

1 stop15h 34m

Ontario

Sun 6/30

1 stop31h 15m

$766

ManchesterOntario

MAN - ONT

MANONT

Manchester

Thu 11/14

2 stops18h 17m

Ontario

Thu 11/28

2 stops17h 20m

$774

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 6/19

1 stop13h 16m

Ontario

Wed 6/26

1 stop12h 35m

$787

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 6/24

2 stops43h 18m

Ontario

Sun 6/30

2 stops41h 15m

$816

Flights are sorted by cheapest first

Deals found on 5/18

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 May 19, 2024.
To help decide which airline to fly from United Kingdom to Ontario, see what other customers have to say about United Airlines, American Airlines and Iberia. 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
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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
10,647 reviews
Delta
8.0
Very good
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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
1,561 reviews
Delta
8.0
Very good
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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
1,374 reviews
Delta
8.0
Very good
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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
733 reviews
Delta
8.0
Very good
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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
4,453 reviews
Delta
8.0
Very good
10,647 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

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 $700 on Cheapflights?

    Yes, there are multiple flights from United Kingdom to Ontario for under $700. The cheapest flight booked recently is on United Airlines for just $612, but on average you can expect to pay $695.

  • Are there last-minute flights available from United Kingdom to Ontario for under $1,000?

    There are currently 20+ open flights from United Kingdom to Ontario within the next 7 days for less than $1,000.

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $727. However, be on the lookout for offers from Finnair and Avianca, 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.

  • 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 5/19.

See more FAQs

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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 2,634,509 searches. Data last updated May 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$465Average$702FlexibilityNo cancel feeOn-time70%
Search British Airways flights
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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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