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Cheap flights to Ontario from £409

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.
CMH — ONT
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

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 853,037 searches and data was last updated on 20 May 2024.

Popular in

July

Cheapest in

November

Average price

£500

Return from

£372

One-way from

£409
High demand for flights, 18% 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 853,037 searches and data was last updated on 20 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 17/611:05LHR - ONT
1 stop14h 23mUnited Airlines
Tue 24/1213:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 19/5£542
Tue 18/618:00LHR - ONT
2 stops31h 28mAir Canada
Tue 25/618:25ONT - LHR
2 stops28h 05mAir Canada
Deal found 19/5£576
Tue 18/612:00LHR - ONT
1 stop14h 57mBritish Airways
Tue 25/610:54ONT - LHR
1 stop13h 06mBritish Airways
Deal found 19/5£593
Tue 18/615:50LHR - ONT
2 stops33h 38mUnited Airlines
Tue 25/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 19/5£595
Mon 17/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Mon 24/605:15ONT - LHR
1 stop23h 05mUnited Airlines
Deal found 20/5£601
Wed 19/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Mon 1/713:30ONT - LHR
1 stop14h 50mUnited Airlines
Deal found 19/5£603
Mon 17/606:30LHR - ONT
2 stops24h 08mDelta
Mon 24/613:25ONT - LHR
2 stops36h 50mDelta
Deal found 19/5£606
Sun 2/610:55LHR - ONT
1 stop13h 41mDelta
Wed 29/113:30ONT - LHR
1 stop12h 30mDelta
Deal found 19/5£608
Tue 18/610:40LGW - ONT
2 stops20h 19mAmerican Airlines
Tue 25/608:10ONT - LGW
2 stops18h 30mAmerican Airlines
Deal found 19/5£608

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 853,037 searches and data were last updated on 20 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 10/913:40LHR - ONT
1 stop15h 51mUnited Airlines
Tue 24/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 19/5£482
Wed 13/1110:05LHR - ONT
1 stop15h 35mUnited Airlines
Thu 5/1213:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 20/5£489
Wed 13/1110:00LHR - ONT
2 stops18h 25mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 18/5£490
Mon 16/916:25LHR - ONT
1 stop15h 01mIberia
Mon 23/910:50ONT - LHR
1 stop13h 10mIberia
Deal found 20/5£499
Thu 14/1115:00LGW - ONT
2 stops30h 44mAmerican Airlines
Mon 18/1123:59ONT - LGW
2 stops24h 06mAmerican Airlines
Deal found 18/5£501
Wed 13/1110:25LHR - ONT
2 stops18h 00mUnited Airlines
Sun 17/1105:15ONT - LHR
2 stops18h 40mUnited Airlines
Deal found 18/5£512
Thu 14/1113:45LHR - ONT
1 stop16h 36mUnited Airlines
Thu 5/1213:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 20/5£519
Sat 14/914:50LHR - ONT
1 stop14h 12mUnited Airlines
Sun 29/918:35ONT - LHR
1 stop31h 50mUnited Airlines
Deal found 20/5£520
Mon 17/611:05LHR - ONT
1 stop14h 23mUnited Airlines
Tue 24/1213:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 19/5£542

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 853,037 searches and data was last updated on 20 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 28/514:50LHR - ONT
1 stop29h 43mUnited Airlines
Tue 18/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 20/5£771
Tue 28/521:00LHR - ONT
2 stops29h 59mAmerican Airlines
Tue 4/607:31ONT - LHR
2 stops16h 29mAmerican Airlines
Deal found 20/5£773
Tue 28/516:25LHR - ONT
1 stop15h 31mBritish Airways
Fri 28/610:54ONT - LHR
1 stop13h 06mBritish Airways
Deal found 20/5£834
Mon 27/513:05LHR - ONT
1 stop15h 03mBritish Airways
Mon 3/612:50ONT - LHR
1 stop13h 50mBritish Airways
Deal found 20/5£885
Tue 28/513:05LHR - ONT
1 stop15h 03mMultiple Airlines
Tue 4/611:00ONT - LHR
1 stop17h 45mMultiple Airlines
Deal found 20/5£886
Mon 27/510:25LHR - ONT
1 stop20h 04mUnited Airlines
Sun 2/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 20/5£895
Sun 26/509:30LHR - ONT
2 stops19h 18mUnited Airlines
Mon 3/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 20/5£905
Sat 25/511:05LHR - ONT
1 stop33h 28mUnited Airlines
Mon 3/605:15ONT - LHR
1 stop23h 05mUnited Airlines
Deal found 20/5£911
Sat 25/513:40LHR - ONT
1 stop15h 23mUnited Airlines
Wed 29/513:50ONT - LHR
1 stop12h 35mUnited Airlines
Deal found 20/5£917

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 853,037 searches and data was last updated on 20 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.
Mon 27/521:05LHR - ONT
3 stops51h 36mMultiple Airlines
Deal found 19/5£409
Mon 27/520:30LHR - ONT
2 stops42h 09mMultiple Airlines
Deal found 19/5£516
Mon 9/922:30LHR - ONT
2 stops32h 27mMultiple Airlines
Deal found 19/5£554
Mon 9/910:30LGW - ONT
1 stop19h 51mJetBlue
Deal found 20/5£579
Tue 4/610:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 19/5£598
Mon 9/919:45LHR - ONT
3 stops35h 12mMultiple Airlines
Deal found 19/5£601
Tue 18/610:30LGW - ONT
1 stop20h 08mJetBlue
Deal found 20/5£604
Tue 10/911:55LHR - ONT
1 stop18h 26mJetBlue
Deal found 19/5£605
Mon 16/907:25LHR - ONT
1 stop22h 56mJetBlue
Deal found 19/5£608

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 853,037 searches and data was last updated on 20 May 2024.

Fly from

Any airport

Budget

£482 - £619

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/9

1 stop15h 51m

Ontario

Tue 24/9

1 stop12h 05m

£482

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 16/9

1 stop15h 01m

Ontario

Mon 23/9

1 stop13h 10m

£499

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Thu 14/11

2 stops19h 37m

Ontario

Mon 18/11

2 stops28h 07m

£501

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 14/9

1 stop15h 51m

Ontario

Sun 29/9

2 stops31h 15m

£549

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 25/9

1 stop16h 53m

Ontario

Wed 30/10

1 stop15h 42m

£556

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 18/6

2 stops31h 28m

Ontario

Tue 25/6

2 stops28h 05m

£576

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 2/9

1 stop23h 07m

Ontario

Mon 9/9

1 stop13h 09m

£579

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 17/6

2 stops24h 08m

Ontario

Mon 24/6

2 stops36h 50m

£606

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 19/6

1 stop13h 16m

Ontario

Wed 26/6

1 stop12h 35m

£619

Flights are sorted by cheapest first

Deals found on 19/5

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 £564 while a return flight costs £552. 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 20 May 2024.
Read reviews from past customers who have flown JetBlue, Iberia and United Airlines to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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
10,615 reviews
Delta
8.0
Very Good
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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
1,555 reviews
Delta
8.0
Very Good
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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
7.7
Good
730 reviews
Delta
8.0
Very Good
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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
4,435 reviews
Delta
8.0
Very Good
10,615 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.6

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.

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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