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Cheap flights to Ontario from £475

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 12/8. 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
24 May — 31 May1
1 adult
Fri 24/5
Fri 31/5

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 835,321 searches and data was last updated on 19 May 2024.

Popular in

July

Cheapest in

November

Average price

£500

Return from

£334

One-way from

£475
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 835,321 searches and data was last updated on 19 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.
Tue 18/615:50LHR - ONT
2 stops33h 38mUnited Airlines
Tue 25/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 19/5£595
Tue 18/615:50LHR - ONT
2 stops33h 38mUnited Airlines
Tue 25/605:15ONT - LHR
2 stops21h 25mUnited Airlines
Deal found 19/5£599
Mon 17/612:20LHR - ONT
1 stop18h 07mUnited Airlines
Mon 24/606:00ONT - LHR
1 stop17h 40mUnited Airlines
Deal found 18/5£601
Tue 25/613:40LHR - ONT
1 stop15h 34mLufthansa
Sun 30/618:25ONT - LHR
1 stop31h 15mLufthansa
Deal found 18/5£603
Mon 17/614:50LHR - ONT
1 stop13h 58mUnited Airlines
Mon 24/606:00ONT - LHR
1 stop17h 40mUnited Airlines
Deal found 18/5£609
Wed 12/612:20LGW - ONT
2 stops19h 39mAmerican Airlines
Wed 19/623:59ONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 18/5£619
Wed 19/611:00LHR - ONT
1 stop13h 16mKLM
Wed 26/613:25ONT - LHR
1 stop12h 35mKLM
Deal found 18/5£620
Tue 18/613:40LHR - ONT
1 stop15h 34mUnited Airlines
Wed 3/713:30ONT - LHR
1 stop14h 50mUnited Airlines
Deal found 18/5£635
Wed 12/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Wed 19/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 18/5£635

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 835,321 searches and data were last updated on 19 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 29/1010:05LHR - ONT
1 stop14h 35mUnited Airlines
Tue 12/1113:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 18/5£482
Tue 10/913:40LHR - ONT
1 stop15h 51mUnited Airlines
Tue 24/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 19/5£483
Wed 13/1110:25LHR - ONT
2 stops18h 00mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 17/5£490
Wed 13/1110:00LHR - ONT
2 stops18h 25mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 18/5£490
Thu 14/1111:25LGW - ONT
2 stops20h 42mAmerican Airlines
Mon 18/1123:11ONT - LGW
2 stops24h 19mAmerican Airlines
Deal found 17/5£500
Thu 14/1115:00LGW - ONT
2 stops30h 44mAmerican Airlines
Mon 18/1123:59ONT - LGW
2 stops24h 06mAmerican Airlines
Deal found 18/5£501
Mon 9/916:15LHR - ONT
1 stop16h 30mUnited Airlines
Sun 22/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 18/5£512
Wed 13/1110:25LHR - ONT
2 stops18h 00mUnited Airlines
Sun 17/1105:15ONT - LHR
2 stops18h 40mUnited Airlines
Deal found 18/5£512
Tue 17/916:25LHR - ONT
1 stop15h 01mIberia
Tue 24/910:50ONT - LHR
1 stop13h 10mIberia
Deal found 18/5£515

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 835,321 searches and data was last updated on 19 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.
Sat 25/512:45LHR - ONT
1 stop17h 53mVirgin Atlantic
Thu 30/511:20ONT - LHR
1 stop14h 30mVirgin Atlantic
Deal found 18/5£768
Tue 28/510:35LHR - ONT
1 stop18h 39mUnited Airlines
Tue 4/618:25ONT - LHR
1 stop33h 55mUnited Airlines
Deal found 18/5£769
Tue 28/511:05LHR - ONT
1 stop14h 23mUnited Airlines
Tue 4/618:25ONT - LHR
1 stop33h 55mUnited Airlines
Deal found 19/5£771
Mon 27/511:30LHR - ONT
2 stops20h 26mAmerican Airlines
Tue 4/609:30ONT - LHR
2 stops17h 45mAmerican Airlines
Deal found 17/5£772
Mon 27/512:45LHR - ONT
1 stop15h 21mDelta
Tue 11/613:25ONT - LHR
1 stop12h 35mDelta
Deal found 19/5£788
Sat 25/513:40LHR - ONT
1 stop15h 23mMultiple Airlines
Thu 30/505:15ONT - LHR
2 stops17h 15mMultiple Airlines
Deal found 18/5£790
Sat 25/510:25LHR - ONT
1 stop20h 02mUnited Airlines
Thu 30/505:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 18/5£799
Sat 25/516:15LHR - ONT
1 stop14h 12mUnited Airlines
Sun 2/618:25ONT - LHR
1 stop31h 15mUnited Airlines
Deal found 18/5£807
Wed 29/514:50LHR - ONT
1 stop13h 58mUnited Airlines
Wed 5/613:29ONT - LHR
1 stop14h 51mUnited Airlines
Deal found 18/5£824

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 835,321 searches and data was last updated on 19 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 12/817:05LGW - ONT
2 stops45h 31mMultiple Airlines
Deal found 18/5£475
Tue 10/911:35LGW - ONT
3 stops30h 32mMultiple Airlines
Deal found 18/5£482
Tue 10/910:30LGW - ONT
1 stop19h 51mJetBlue
Deal found 18/5£572
Wed 25/910:30LGW - ONT
1 stop19h 35mJetBlue
Deal found 18/5£579
Mon 9/910:30LGW - ONT
1 stop19h 51mJetBlue
Deal found 18/5£582
Wed 4/910:30LGW - ONT
1 stop19h 35mJetBlue
Deal found 18/5£594
Mon 12/811:10LGW - ONT
3 stops29h 56mMultiple Airlines
Deal found 18/5£598
Mon 12/813:55LHR - ONT
2 stops30h 52mMultiple Airlines
Deal found 18/5£602
Wed 5/610:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 18/5£603

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 835,321 searches and data was last updated on 19 May 2024.

Fly from

Any airport

Budget

£482 - £679

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 29/10

1 stop14h 35m

Ontario

Tue 12/11

1 stop12h 40m

£482

London GatwickOntario

LGW - ONT

LGWONT

London Gatwick

Thu 14/11

2 stops20h 42m

Ontario

Mon 18/11

2 stops24h 19m

£500

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 17/9

1 stop15h 01m

Ontario

Tue 24/9

1 stop13h 10m

£515

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 27/10

1 stop16h 48m

Ontario

Mon 4/11

1 stop16h 46m

£528

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 25/9

1 stop18h 56m

Ontario

Wed 30/10

2 stops17h 00m

£575

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 25/6

1 stop15h 34m

Ontario

Sun 30/6

1 stop31h 15m

£603

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 19/6

1 stop13h 16m

Ontario

Wed 26/6

1 stop12h 35m

£620

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 24/6

2 stops43h 18m

Ontario

Sun 30/6

2 stops41h 15m

£642

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Fri 25/10

1 stop15h 47m

Ontario

Fri 1/11

1 stop13h 15m

£679

Flights are sorted by cheapest first

Deals found on 18/5

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 £565 while a return flight costs £572. 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 19 May 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and Iberia to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
10,635 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
1,561 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
1,373 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
733 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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
4,447 reviews
Delta
8.0
Very Good
10,635 reviews
Check prices

Food

7.4

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

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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