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Cheap flights to Ontario from £410

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 30/5. 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.
CMH — ONT
23 May — 30 May1
1 adult
Thu 23/5
Thu 30/5

Flights to Ontario in 2024

Find the latest flights to Ontario in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 841,960 searches and data was last updated on 18 May 2024.

Popular in

July

Cheapest in

November

Average price

£501

Return from

£459

One-way from

£410
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for return flights in May 2024
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From London to Los Angeles
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One-way flight from London to Ontario (ONT)
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Cheap flights to Ontario in May & June 2024

Discover affordable flights and deals to Ontario in May and June 2024. In the last 7 days, Cheapflights users made a total of 841,960 searches and data was last updated on 18 May 2024.
These are some of the cheapest-priced fares users can find on flights departing to Ontario in May and June 2024. Be sure to check back soon as deals update often.
Mon 17/614:50LHR - ONT
1 stop13h 58mUnited Airlines
Mon 24/606:00ONT - LHR
1 stop17h 40mUnited Airlines
Deal found 17/5£603
Wed 12/609:30LHR - ONT
2 stops19h 18mUnited Airlines
Wed 19/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 17/5£614
Wed 12/612:20LGW - ONT
2 stops19h 39mAmerican Airlines
Wed 19/623:59ONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 18/5£620
Wed 5/613:40LHR - ONT
1 stop15h 34mUnited Airlines
Thu 18/713:45ONT - LHR
2 stops14h 35mUnited Airlines
Deal found 16/5£621
Tue 25/613:40LHR - ONT
1 stop15h 34mUnited Airlines
Wed 3/713:30ONT - LHR
1 stop14h 50mUnited Airlines
Deal found 17/5£622
Mon 3/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Sun 21/718:35ONT - LHR
1 stop28h 20mUnited Airlines
Deal found 16/5£629
Mon 17/614:50LHR - ONT
1 stop13h 58mUnited Airlines
Sat 6/713:45ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 16/5£631
Fri 21/614:50LHR - ONT
1 stop13h 58mUnited Airlines
Tue 2/713:40ONT - LHR
1 stop12h 45mUnited Airlines
Deal found 17/5£633
Sun 16/615:05LGW - ONT
2 stops35h 32mFinnair
Sun 23/619:26ONT - LGW
2 stops30h 44mFinnair
Deal found 17/5£634

Ontario 2024 flight deals

Explore flight deals for Ontario in 2024, offering the best prices and options to suit your preferences. In the last 7 days, Cheapflights users made a total of 841,960 searches and data were last updated on 18 May 2024.
Check out some of the best flight deals to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 29/1013:45LHR - ONT
1 stop15h 36mUnited Airlines
Tue 12/1113:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 17/5£483
Mon 16/914:50LHR - ONT
1 stop14h 12mUnited Airlines
Mon 23/907:40ONT - LHR
1 stop15h 15mUnited Airlines
Deal found 17/5£488
Wed 13/1110:25LHR - ONT
2 stops18h 00mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 16/5£491
Thu 14/1111:25LGW - ONT
2 stops20h 42mAmerican Airlines
Mon 18/1112:51ONT - LGW
2 stops34h 39mAmerican Airlines
Deal found 16/5£501
Fri 1/1110:05LHR - ONT
1 stop14h 35mUnited Airlines
Tue 12/1113:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 17/5£513
Tue 17/916:25LHR - ONT
1 stop15h 01mIberia
Tue 24/910:50ONT - LHR
1 stop13h 10mIberia
Deal found 18/5£516
Sun 27/1011:55LHR - ONT
1 stop16h 48mBritish Airways
Mon 4/1106:34ONT - LHR
1 stop16h 46mBritish Airways
Deal found 18/5£529
Mon 2/916:15LHR - ONT
1 stop16h 30mUnited Airlines
Mon 30/913:30ONT - LHR
1 stop12h 10mUnited Airlines
Deal found 17/5£543
Sat 9/1109:20LHR - ONT
1 stop20h 32mMultiple Airlines
Tue 12/1113:00ONT - LHR
2 stops17h 45mMultiple Airlines
Deal found 17/5£551

Flights to Ontario departing soon

Discover available last-minute flight options to Ontario, providing immediate availability and potentially lower prices. In the last 7 days, Cheapflights users made a total of 841,960 searches and data was last updated on 18 May 2024.
Have a look at some of the best last-minute flights available departing to Ontario. Make sure to double check the price, time, and destination to confirm all are correct.
Tue 28/511:05LHR - ONT
1 stop14h 23mUnited Airlines
Tue 4/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 16/5£768
Sat 25/512:45LHR - ONT
1 stop17h 53mVirgin Atlantic
Thu 30/511:20ONT - LHR
1 stop14h 30mVirgin Atlantic
Deal found 18/5£769
Mon 27/514:50LHR - ONT
1 stop13h 58mUnited Airlines
Tue 11/613:29ONT - LHR
1 stop14h 51mUnited Airlines
Deal found 17/5£770
Mon 27/512:20LHR - ONT
1 stop32h 25mUnited Airlines
Tue 4/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 17/5£771
Mon 27/516:15LHR - ONT
1 stop14h 14mUnited Airlines
Tue 11/613:29ONT - LHR
1 stop14h 51mUnited Airlines
Deal found 17/5£771
Mon 27/511:30LHR - ONT
2 stops20h 26mAmerican Airlines
Tue 4/610:39ONT - LHR
2 stops16h 11mAmerican Airlines
Deal found 17/5£774
Sat 25/513:40LHR - ONT
1 stop15h 23mMultiple Airlines
Thu 30/505:15ONT - LHR
2 stops17h 15mMultiple Airlines
Deal found 18/5£792
Fri 24/516:15LHR - ONT
1 stop15h 54mUnited Airlines
Mon 27/513:50ONT - LHR
1 stop12h 35mUnited Airlines
Deal found 17/5£800
Sun 26/512:20LHR - ONT
1 stop15h 34mUnited Airlines
Mon 17/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 17/5£801

One-way flights to Ontario

Explore one-way flight options to Ontario for greater flexibility in your travel plans. Find up-to-date pricing and availability for one-way flights. In the last 7 days, Cheapflights users made a total of 841,960 searches and data was last updated on 18 May 2024.
Consider booking one of these one-way flights heading to Ontario. Users can also find round-trip Ontario flights by using the search form above.
Thu 30/513:05LGW - ONT
2 stops34h 21mMultiple Airlines
Deal found 17/5£410
Thu 30/508:10LCY - ONT
2 stops33h 14mMultiple Airlines
Deal found 17/5£465
Thu 30/520:30LHR - ONT
2 stops42h 09mMultiple Airlines
Deal found 17/5£476
Thu 30/520:50LGW - ONT
3 stops28h 11mMultiple Airlines
Deal found 17/5£480
Tue 17/912:40LGW - ONT
2 stops29h 27mMultiple Airlines
Deal found 17/5£488
Tue 17/911:35LGW - ONT
3 stops30h 32mMultiple Airlines
Deal found 17/5£495
Thu 30/522:15LHR - ONT
3 stops49h 11mMultiple Airlines
Deal found 17/5£512
Wed 25/910:30LGW - ONT
1 stop19h 35mJetBlue
Deal found 17/5£580
Sun 4/806:45LHR - ONT
3 stops34h 21mMultiple Airlines
Deal found 16/5£584

Find flights to Ontario within your budget

Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 841,960 searches and data was last updated on 18 May 2024.

Fly from

Any airport

Budget

£483 - £649

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 16/9

1 stop14h 12m

Ontario

Thu 26/9

1 stop12h 10m

£483

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Thu 14/11

2 stops20h 42m

Ontario

Mon 18/11

2 stops34h 39m

£501

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 9/11

1 stop20h 32m

Ontario

Tue 12/11

2 stops17h 45m

£551

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 3/9

2 stops28h 42m

Ontario

Tue 10/9

2 stops20h 10m

£612

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 25/8

1 stop14h 48m

Ontario

Sat 5/10

1 stop13h 10m

£620

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 9/9

1 stop14h 45m

Ontario

Wed 11/9

1 stop26h 05m

£630

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 29/9

1 stop13h 42m

Ontario

Sun 20/10

1 stop31h 20m

£634

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 3/6

1 stop15h 03m

Ontario

Sat 20/7

1 stop13h 04m

£644

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Mon 3/6

2 stops18h 47m

Ontario

Sat 20/7

2 stops19h 05m

£649

Flights are sorted by cheapest first

Deals found on 17/5

Average price of flights to Ontario by month

Plan your trip to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight to Ontario is currently £499 while a return flight costs £592. Price data was last updated on 12 May 2024.

Temperature and rainfall in Ontario by month

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

LAX

Temperature

14 - 23 °C

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

When is the best time to book a flight to Ontario?

Use this chart to determine the optimal time to book a return flight to Ontario. Price data was last updated on 10 May 2024.
The price you pay for your flight to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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When is the cheapest time to fly to Ontario?

Use this chart to determine the cheapest time to fly return to Ontario. Price data was last updated on 12 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Users looking for the lowest fares to Ontario should consider flying on Wednesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Tuesday at midday, when prices are usually at their highest.
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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 18 May 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and British Airways to Ontario. Users have also rated airlines 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

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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
1,566 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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.

Austrian Airlines
7.7
Good
1,049 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.0

Food

7.4

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.

Ontario airport overview

At just 3.7km (2.3 miles) east of downtown Ontario, Ontario International Airport  is a small but well-equipped alternative to Los Angeles Airport and John Wayne Airport for passengers flying to California.

The number of flights to Ontario International Airport has been declining steadily in recent years (there were 4.8 million passengers in 2010, but the terminals are built to handle twice that) – some say due to the lack of direct flights to major destinations, in comparison with other airports nearby. However, those who use the airport agree that it is a convenient alternative, well connected to nearby air fields and towns, easy to get in and out of, clean and with good basic facilities.

  • What does ONT mean?

    This is defined as Ontario Airport (ONT). Codes like ONT are often used to just call airports uniquely.

  • What airport do you fly into for flights to Ontario?

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

  • Can I find cheaper flights to Ontario if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, Virgin Atlantic is rated the highest out of the airlines that fly to Ontario.

  • What is the cheapest airport to fly to in Ontario?

    null is currently the cheapest airport to fly to in Ontario. One-way flights to null typically cost null, while return flights cost around null.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, London offers the quickest one-way flight (13 hours 12 minutes).

  • Does Ontario Airport have car hire?

    Yes. Those touching down at Ontario Airport can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ontario Airport?

    Yes. Ontario Airport has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario Airport (0.0 mi away from Ontario Airport).

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