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Cheap flights to Ontario from £394

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 10/9. 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
18 May — 25 May1
1 adult
Sat 18/5
Sat 25/5

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 841,996 searches and data was last updated on 13 May 2024.

Popular in

July

Cheapest in

November

Average price

£507

Return from

£272

One-way from

£394
High demand for flights, 17% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for return flights in May 2024
From London to Los Angeles
One-way flight from London to Ontario (ONT)

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 841,996 searches and data was last updated on 13 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 11/610:40LGW - ONT
2 stops20h 19mAmerican Airlines
Tue 18/606:00ONT - LGW
2 stops18h 35mAmerican Airlines
Deal found 11/5£443
Wed 12/610:40LGW - ONT
2 stops20h 19mAmerican Airlines
Wed 19/622:45ONT - LGW
2 stops23h 50mAmerican Airlines
Deal found 12/5£450
Tue 11/611:00LHR - ONT
1 stop15h 37mFinnair
Tue 18/612:49ONT - LHR
2 stops15h 26mFinnair
Deal found 11/5£452
Mon 24/612:00LHR - ONT
1 stop14h 57mFinnair
Sun 30/622:45ONT - LHR
1 stop24h 55mFinnair
Deal found 12/5£453
Tue 21/521:00LHR - ONT
2 stops29h 59mAmerican Airlines
Wed 29/510:34ONT - LHR
2 stops15h 56mAmerican Airlines
Deal found 13/5£457
Tue 21/511:45LHR - ONT
2 stops18h 53mDelta
Wed 29/506:50ONT - LHR
1 stop24h 00mDelta
Deal found 13/5£458
Tue 11/612:00LHR - ONT
1 stop14h 57mAmerican Airlines
Tue 18/622:45ONT - LHR
1 stop29h 25mAmerican Airlines
Deal found 12/5£470
Wed 22/511:00LHR - ONT
1 stop20h 43mKLM
Wed 5/614:13ONT - LHR
1 stop16h 37mKLM
Deal found 13/5£472
Sat 29/612:20LGW - ONT
2 stops19h 39mAmerican Airlines
Wed 10/706:10ONT - LGW
2 stops18h 25mAmerican Airlines
Deal found 12/5£473

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 841,996 searches and data were last updated on 13 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 17/915:15LHR - ONT
1 stop14h 45mFinnair
Mon 23/910:50ONT - LHR
1 stop13h 10mFinnair
Deal found 12/5£412
Wed 13/1106:20LHR - ONT
2 stops24h 13mVirgin Atlantic
Sun 17/1112:45ONT - LHR
1 stop34h 30mVirgin Atlantic
Deal found 12/5£422
Tue 12/1111:55LHR - ONT
1 stop13h 57mBritish Airways
Tue 19/1112:51ONT - LHR
1 stop12h 54mBritish Airways
Deal found 12/5£429
Wed 13/1110:45LHR - ONT
1 stop13h 27mDelta
Sun 17/1122:59ONT - LHR
1 stop24h 16mDelta
Deal found 12/5£430
Wed 11/912:20LGW - ONT
2 stops19h 06mAmerican Airlines
Sun 6/1006:32ONT - LGW
2 stops17h 38mAmerican Airlines
Deal found 12/5£431
Sat 9/1110:45LHR - ONT
1 stop13h 27mVirgin Atlantic
Mon 11/1113:42ONT - LHR
1 stop12h 18mVirgin Atlantic
Deal found 12/5£443
Tue 11/610:40LGW - ONT
2 stops20h 19mAmerican Airlines
Tue 18/606:00ONT - LGW
2 stops18h 35mAmerican Airlines
Deal found 11/5£443
Wed 21/816:25LHR - ONT
1 stop15h 24mFinnair
Mon 2/922:35ONT - LHR
1 stop24h 55mFinnair
Deal found 12/5£448
Wed 12/610:40LGW - ONT
2 stops20h 19mAmerican Airlines
Wed 19/622:45ONT - LGW
2 stops23h 50mAmerican Airlines
Deal found 12/5£450

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 841,996 searches and data was last updated on 13 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.
Mon 20/511:35LHR - ONT
1 stop16h 31mKLM
Wed 29/513:20ONT - LHR
1 stop12h 40mKLM
Deal found 12/5£671
Tue 21/516:25LHR - ONT
1 stop15h 31mIberia
Tue 28/514:50ONT - LHR
1 stop13h 25mIberia
Deal found 12/5£707
Wed 22/511:00LHR - ONT
1 stop19h 29mBritish Airways
Thu 30/512:53ONT - LHR
1 stop16h 42mBritish Airways
Deal found 12/5£733
Mon 20/512:00LHR - ONT
1 stop16h 08mBritish Airways
Wed 14/812:46ONT - LHR
1 stop14h 19mBritish Airways
Deal found 12/5£782
Fri 17/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Mon 20/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 12/5£793
Mon 20/516:25LHR - ONT
1 stop15h 31mIberia
Sun 26/514:50ONT - LHR
1 stop13h 25mIberia
Deal found 12/5£800
Fri 17/514:50LHR - ONT
1 stop14h 03mUnited Airlines
Sun 19/513:36ONT - LHR
1 stop12h 04mUnited Airlines
Deal found 12/5£823
Sun 19/512:45LHR - ONT
1 stop18h 02mKLM
Tue 18/607:05ONT - LHR
2 stops25h 10mKLM
Deal found 12/5£840
Sat 18/512:00LGW - ONT
2 stops43h 43mDelta
Tue 21/505:45ONT - LGW
2 stops20h 15mDelta
Deal found 12/5£841

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 841,996 searches and data was last updated on 13 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.
Tue 10/907:40LHR - ONT
3 stops34h 27mMultiple Airlines
Deal found 12/5£394
Tue 17/909:50LHR - ONT
3 stops32h 17mMultiple Airlines
Deal found 12/5£467
Wed 5/621:05LGW - ONT
2 stops42h 03mMultiple Airlines
Deal found 12/5£479
Tue 17/911:35LGW - ONT
3 stops30h 32mMultiple Airlines
Deal found 12/5£485
Tue 17/910:30LGW - ONT
1 stop19h 51mJetBlue
Deal found 13/5£577
Wed 29/510:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 13/5£594
Wed 28/810:30LGW - ONT
1 stop19h 58mJetBlue
Deal found 12/5£597
Wed 12/610:30LGW - ONT
1 stop19h 39mJetBlue
Deal found 13/5£600
Tue 10/907:25LHR - ONT
1 stop22h 56mJetBlue
Deal found 12/5£606

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 £533 while a return flight costs £490. Price data was last updated on 5 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.
Search Deals

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 Monday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Tuesday at midday, when prices are usually at their highest.
Search Deals

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 13 May 2024.
Read reviews from past customers who have flown Finnair, American Airlines and Iberia to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

8.0
Very Good
10,736 reviews
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

7.9
Good
1,583 reviews
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

7.8
Good
1,378 reviews
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

7.7
Good
738 reviews
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

7.6
Good
4,505 reviews
8.0
Very Good
10,736 reviews

Comfort

7.9

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Boarding

8.2

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?

    Ontario Airport is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario Airport typically cost £99, while return flights cost around £47.

  • 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 41 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).

See more FAQs

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