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Cheap flights to Ontario from £473

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. 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
21 May — 28 May1
1 adult
Tue 21/5
Tue 28/5

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 844,321 searches and data was last updated on 16 May 2024.

Popular in

July

Cheapest in

November

Average price

£503

Return from

£332

One-way from

£557
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 844,321 searches and data was last updated on 16 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.
Wed 12/615:15LHR - ONT
1 stop15h 44mAmerican Airlines
Wed 26/614:44ONT - LHR
1 stop14h 01mAmerican Airlines
Deal found 14/5£473
Tue 28/516:25LHR - ONT
1 stop15h 31mAmerican Airlines
Tue 4/612:53ONT - LHR
1 stop14h 12mAmerican Airlines
Deal found 14/5£474
Thu 13/615:15LHR - ONT
1 stop15h 44mAmerican Airlines
Thu 20/610:54ONT - LHR
1 stop13h 06mAmerican Airlines
Deal found 14/5£503
Wed 26/613:40LHR - ONT
1 stop15h 34mUnited Airlines
Wed 25/907:40ONT - LHR
1 stop15h 15mUnited Airlines
Deal found 15/5£546
Tue 25/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Tue 24/907:40ONT - LHR
1 stop15h 15mUnited Airlines
Deal found 16/5£547
Wed 12/612:20LGW - ONT
2 stops19h 39mAmerican Airlines
Wed 19/623:59ONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 15/5£598
Mon 17/611:05LHR - ONT
1 stop17h 43mUnited Airlines
Mon 24/606:10ONT - LHR
1 stop20h 15mUnited Airlines
Deal found 15/5£601
Tue 25/616:15LHR - ONT
1 stop14h 12mUnited Airlines
Tue 2/713:35ONT - LHR
1 stop14h 45mUnited Airlines
Deal found 15/5£603
Sun 2/610:55LHR - ONT
1 stop13h 41mDelta
Wed 29/111:29ONT - LHR
1 stop13h 16mDelta
Deal found 15/5£605

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 844,321 searches and data were last updated on 16 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.
Wed 12/615:15LHR - ONT
1 stop15h 44mAmerican Airlines
Wed 26/614:44ONT - LHR
1 stop14h 01mAmerican Airlines
Deal found 14/5£473
Tue 28/516:25LHR - ONT
1 stop15h 31mAmerican Airlines
Tue 4/612:53ONT - LHR
1 stop14h 12mAmerican Airlines
Deal found 14/5£474
Wed 18/915:15LHR - ONT
1 stop14h 45mFinnair
Thu 3/1010:50ONT - LHR
1 stop13h 10mFinnair
Deal found 15/5£476
Wed 11/914:50LHR - ONT
1 stop14h 12mUnited Airlines
Tue 24/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 15/5£481
Tue 31/1210:05LHR - ONT
1 stop15h 55mUnited Airlines
Tue 21/113:00ONT - LHR
1 stop12h 40mUnited Airlines
Deal found 16/5£483
Tue 17/914:50LHR - ONT
1 stop14h 12mUnited Airlines
Tue 24/913:35ONT - LHR
1 stop12h 05mUnited Airlines
Deal found 15/5£484
Mon 16/913:40LHR - ONT
1 stop15h 51mUnited Airlines
Mon 30/913:30ONT - LHR
1 stop12h 10mUnited Airlines
Deal found 15/5£487
Wed 13/1110:25LHR - ONT
2 stops18h 00mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 14/5£489
Wed 13/1110:00LHR - ONT
2 stops18h 25mUnited Airlines
Sun 17/1118:35ONT - LHR
1 stop28h 50mUnited Airlines
Deal found 15/5£492

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 844,321 searches and data was last updated on 16 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 21/510:30LGW - ONT
1 stop19h 39mJetBlue
Tue 28/523:40ONT - LGW
1 stop24h 15mJetBlue
Deal found 16/5£726
Wed 22/511:05LHR - ONT
1 stop17h 48mUnited Airlines
Wed 5/605:15ONT - LHR
1 stop23h 05mUnited Airlines
Deal found 15/5£768
Wed 22/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Wed 29/513:50ONT - LHR
1 stop12h 35mUnited Airlines
Deal found 15/5£772
Wed 22/508:40LHR - ONT
2 stops21h 58mDelta
Wed 5/606:50ONT - LHR
2 stops19h 40mDelta
Deal found 15/5£783
Thu 23/511:00LHR - ONT
1 stop15h 48mFinnair
Tue 11/622:45ONT - LHR
1 stop24h 55mFinnair
Deal found 15/5£791
Sun 26/516:25LHR - ONT
1 stop15h 31mFinnair
Tue 4/612:53ONT - LHR
1 stop14h 12mFinnair
Deal found 15/5£792
Sun 26/514:50LHR - ONT
1 stop13h 58mUnited Airlines
Mon 17/605:15ONT - LHR
1 stop23h 05mUnited Airlines
Deal found 15/5£797
Sun 26/510:25LHR - ONT
1 stop34h 20mUnited Airlines
Mon 17/605:15ONT - LHR
1 stop20h 25mUnited Airlines
Deal found 16/5£802
Sat 25/513:10LHR - ONT
1 stop14h 58mIberia
Mon 27/514:50ONT - LHR
1 stop13h 25mIberia
Deal found 15/5£814

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 844,321 searches and data was last updated on 16 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.
Wed 4/922:30LHR - ONT
2 stops32h 27mMultiple Airlines
Deal found 15/5£557
Mon 3/610:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 15/5£597
Wed 29/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 15/5£599
Mon 1/710:30LGW - ONT
1 stop20h 08mJetBlue
Deal found 16/5£600
Wed 29/511:55LHR - ONT
1 stop18h 14mJetBlue
Deal found 15/5£620
Thu 30/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 15/5£621
Tue 27/811:55LHR - ONT
1 stop18h 33mJetBlue
Deal found 15/5£622
Tue 4/611:55LHR - ONT
1 stop18h 14mJetBlue
Deal found 16/5£623
Thu 30/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 15/5£623

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 844,321 searches and data was last updated on 16 May 2024.

Fly from

Any airport

Budget

£473 - £605

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 12/6

1 stop15h 44m

Ontario

Wed 26/6

1 stop14h 01m

£473

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 18/9

1 stop14h 45m

Ontario

Thu 3/10

1 stop13h 10m

£476

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/9

1 stop14h 12m

Ontario

Tue 24/9

1 stop12h 05m

£481

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 4/11

1 stop14h 28m

Ontario

Mon 11/11

1 stop14h 25m

£505

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 26/10

1 stop13h 42m

Ontario

Sat 9/11

1 stop12h 40m

£523

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 22/9

1 stop15h 01m

Ontario

Mon 30/9

1 stop13h 10m

£530

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Wed 11/9

2 stops20h 40m

Ontario

Sun 22/9

2 stops18h 20m

£549

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 26/8

1 stop18h 33m

Ontario

Mon 9/9

1 stop13h 09m

£568

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sun 2/6

1 stop13h 41m

Ontario

Wed 29/1

1 stop13h 16m

£605

Flights are sorted by cheapest first

Deals found on 14/5

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 £607 while a return flight costs £523. 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 16 May 2024.
Read reviews from past customers who have flown American Airlines, Finnair 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
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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
10,673 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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
1,568 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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
1,376 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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
4,472 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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.

Avianca
7.5
Good
3,765 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Crew

8.6

Boarding

8.2

Food

7.4

Comfort

7.9

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 16 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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