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.

What is the cheapest month to fly to Ontario?

Currently, March is the cheapest month in which you can book a flight to Ontario . Flying to Ontario in August will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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 is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario typically cost £483, while return flights cost around £118.

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 27 minutes).

Does Ontario have car hire?

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

Are there hotels close to Ontario?

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

£304+ Flights to Ontario, California

Flights to Ontario in 2025

Return from	£431
One-way from	£304
Popular in	August
Cheapest in	February
Average price	£504

SWISS
27/1-10/2
2 total stops
30h 45m total
London to Los Angeles

Search Deals

20/2
1 total stop
27h 26m total
London to Ontario

Search Deals

High demand for flights, 9% potential price rise

Search Deals

Best time to find cheap flights, 2% potential price drop

Search Deals

Average for return flights in January 2025

Search Deals

Find flight deals to Ontario

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

Wed 12/209:30LHR - ONT

2 stops20h 27mUnited Airlines

Mon 17/306:00ONT - LHR

2 stops18h 10mUnited Airlines

Deal found 16/1£405

Mon 27/111:20LGW - ONT

2 stops30h 36mAmerican Airlines

Sun 9/223:59ONT - LGW

2 stops25h 01mAmerican Airlines

Deal found 16/1£412

Tue 11/219:30LHR - ONT

2 stops30h 34mMultiple Airlines

Tue 18/206:00ONT - LHR

1 stop17h 25mMultiple Airlines

Deal found 15/1£418

Wed 12/309:25LHR - ONT

1 stop16h 36mFinnair

Thu 27/314:54ONT - LHR

1 stop14h 11mFinnair

Deal found 16/1£421

Wed 29/115:50LHR - ONT

1 stop14h 42mKLM

Wed 5/213:00ONT - LHR

1 stop13h 35mKLM

Deal found 16/1£423

Wed 12/210:45LHR - ONT

1 stop21h 06mVirgin Atlantic

Mon 17/306:00ONT - LHR

1 stop21h 00mVirgin Atlantic

Deal found 16/1£425

Tue 11/206:20LHR - ONT

2 stops17h 05mDelta

Tue 18/207:05ONT - LHR

2 stops15h 45mDelta

Deal found 15/1£432

Wed 5/314:30LHR - ONT

1 stop15h 34mBritish Airways

Thu 20/306:00ONT - LHR

1 stop20h 40mBritish Airways

Deal found 17/1£455

Sun 2/310:45LHR - ONT

1 stop13h 43mAir France

Tue 11/312:46ONT - LHR

1 stop14h 49mAir France

Deal found 16/1£457

Thu 30/110:05LHR - ONT

2 stops21h 53mIberia

Thu 6/210:56ONT - LHR

1 stop13h 19mIberia

Deal found 16/1£457

Mon 24/310:05LHR - ONT

1 stop14h 59mLufthansa

Sun 13/416:17ONT - LHR

1 stop33h 23mLufthansa

Deal found 16/1£495

Sun 26/112:00LGW - ONT

1 stop15h 59mMultiple Airlines

Thu 30/107:56ONT - LGW

1 stop18h 39mMultiple Airlines

Deal found 16/1£536

Best flights to Ontario
Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.

Wed 12/206:30LHR - ONT

2 stops19h 34mMultiple Airlines

Mon 17/306:00ONT - LHR

1 stop18h 25mMultiple Airlines

Deal found 16/1£405

Mon 27/111:20LGW - ONT

2 stops30h 36mAmerican Airlines

Sun 9/223:59ONT - LGW

2 stops25h 01mAmerican Airlines

Deal found 16/1£412

Mon 27/107:30LHR - ONT

2 stops21h 21mUnited Airlines

Mon 10/206:00ONT - LHR

1 stop17h 30mUnited Airlines

Deal found 16/1£415

Wed 12/309:25LHR - ONT

1 stop16h 36mFinnair

Thu 27/314:54ONT - LHR

1 stop14h 11mFinnair

Deal found 16/1£421

Wed 29/115:50LHR - ONT

1 stop14h 42mKLM

Wed 5/213:00ONT - LHR

1 stop13h 35mKLM

Deal found 16/1£423

Wed 12/210:45LHR - ONT

1 stop21h 06mVirgin Atlantic

Mon 17/306:00ONT - LHR

1 stop21h 00mVirgin Atlantic

Deal found 16/1£425

Tue 11/206:20LHR - ONT

2 stops17h 05mDelta

Tue 18/207:05ONT - LHR

2 stops15h 45mDelta

Deal found 15/1£432

Wed 5/314:30LHR - ONT

1 stop15h 34mBritish Airways

Thu 20/306:00ONT - LHR

1 stop20h 40mBritish Airways

Deal found 17/1£455

Sun 2/310:45LHR - ONT

1 stop13h 43mAir France

Tue 11/312:46ONT - LHR

1 stop14h 49mAir France

Deal found 16/1£457

Thu 30/110:05LHR - ONT

2 stops21h 53mIberia

Thu 6/210:56ONT - LHR

1 stop13h 19mIberia

Deal found 16/1£457

Mon 24/310:05LHR - ONT

1 stop14h 59mLufthansa

Sun 13/416:17ONT - LHR

1 stop33h 23mLufthansa

Deal found 16/1£495

Sat 15/211:10LHR - ONT

2 stops17h 42mAir Canada

Sat 22/213:44ONT - LHR

2 stops32h 46mAir Canada

Deal found 16/1£577

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated 17 January 2025 and is based on user searches.

Wed 22/110:40LHR - ONT

1 stop15h 57mBritish Airways

Wed 29/115:04ONT - LHR

1 stop13h 01mBritish Airways

Deal found 17/1£804

Thu 23/114:50LHR - ONT

3 stops32h 35mWestJet

Sat 8/206:00ONT - LHR

3 stops22h 50mWestJet

Deal found 16/1£992

Thu 23/110:05LHR - ONT

1 stop15h 52mLufthansa

Fri 31/106:00ONT - LHR

1 stop17h 30mLufthansa

Deal found 16/1£1,264

Thu 23/113:50LHR - ONT

1 stop16h 26mIberia

Thu 30/110:56ONT - LHR

1 stop13h 19mIberia

Deal found 16/1£9,405

Sat 25/110:45LHR - ONT

1 stop20h 40mVirgin Atlantic

Fri 28/213:21ONT - LHR

1 stop12h 39mVirgin Atlantic

Deal found 15/1£484

Sat 25/111:10LHR - ONT

2 stops17h 41mMultiple Airlines

Tue 15/405:00ONT - LHR

2 stops17h 35mMultiple Airlines

Deal found 17/1£519

Sun 26/112:00LGW - ONT

1 stop15h 59mMultiple Airlines

Thu 30/107:56ONT - LGW

1 stop18h 39mMultiple Airlines

Deal found 16/1£536

Mon 27/107:30LHR - ONT

2 stops21h 21mUnited Airlines

Mon 10/210:47ONT - LHR

2 stops16h 18mUnited Airlines

Deal found 16/1£415

Mon 27/112:30LHR - ONT

1 stop18h 22mKLM

Mon 10/213:00ONT - LHR

1 stop13h 35mKLM

Deal found 17/1£443

Mon 27/120:05LHR - ONT

2 stops23h 45mDelta

Mon 14/422:59ONT - LHR

2 stops24h 16mDelta

Deal found 17/1£493

Mon 27/121:15LHR - ONT

1 stop27h 35mChina Airlines

Mon 10/222:45ONT - LHR

1 stop34h 10mChina Airlines

Deal found 16/1£6,727

Mon 27/111:20LGW - ONT

2 stops30h 36mAmerican Airlines

Sun 9/223:59ONT - LGW

2 stops25h 01mAmerican Airlines

Deal found 16/1£412

One-way flights to Ontario
Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.

Thu 20/212:00LGW - ONT

1 stop27h 26mMultiple Airlines

Deal found 17/1£304

Thu 20/213:50LHR - ONT

1 stop18h 03mIberia

Deal found 17/1£466

Thu 20/220:40LHR - ONT

2 stops35h 29mMultiple Airlines

Deal found 17/1£475

Tue 28/110:00LCY - ONT

2 stops19h 57mLufthansa

Deal found 17/1£502

Fri 14/309:25LHR - ONT

1 stop16h 36mFinnair

Deal found 16/1£515

Tue 28/110:05LHR - ONT

1 stop15h 59mLufthansa

Deal found 17/1£516

Wed 22/114:50LHR - ONT

3 stops32h 35mWestJet

Deal found 16/1£557

Wed 30/411:55LHR - ONT

1 stop18h 27mJetBlue

Deal found 17/1£716

Tue 20/507:50LCY - ONT

2 stops19h 57mMultiple Airlines

Deal found 16/1£761

Mon 24/321:40LHR - ONT

2 stops31h 20mAvianca

Deal found 16/1£766

Tue 1/407:25LGW - ONT

2 stops24h 29mIberia

Deal found 15/1£856

Tue 22/410:25LGW - ONT

2 stops19h 34mAmerican Airlines

Deal found 17/1£1,148

Find flights to Ontario within your budget

Fly from

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 12/2

06:30-18:04

2 stops19h 34m

Ontario

Wed 19/2

06:00-10:50

1 stop20h 50m

£405

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 27/1

11:20-09:56

2 stops30h 36m

Ontario

Sun 9/2

23:59-09:00

2 stops25h 01m

£412

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 27/1

07:30-20:51

2 stops21h 21m

Ontario

Mon 10/2

10:47-11:05

2 stops16h 18m

£415

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 12/3

09:25-19:01

1 stop16h 36m

Ontario

Thu 27/3

14:54-12:05

1 stop14h 11m

£421

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 29/1

15:50-22:32

1 stop14h 42m

Ontario

Wed 5/2

13:00-10:35

1 stop13h 35m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 12/2

10:45-23:51

1 stop21h 06m

Ontario

Mon 17/3

06:00-10:00

1 stop21h 00m

£425

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 11/2

06:20-15:25

2 stops17h 05m

Ontario

Tue 18/2

07:05-06:50

2 stops15h 45m

£432

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 5/3

14:30-22:04

1 stop15h 34m

Ontario

Thu 20/3

06:00-09:40

1 stop20h 40m

£455

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 2/3

10:45-16:28

1 stop13h 43m

Ontario

Tue 11/3

12:46-10:35

1 stop14h 49m

£457

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 30/1

10:05-23:58

2 stops21h 53m

Ontario

Thu 6/2

10:56-08:15

1 stop13h 19m

£457

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 38 results

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights to Ontario

Get recent, data-driven insights about flights to Ontario including ideal travel times, pricing trends, and more.

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

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 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Ontario?

On average, a flight from London to Ontario takes 16 hours 49 minutes. Flights to Ontario from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Ontario?

The most popular airlines flying from London to Ontario are British Airways, Virgin Atlantic and Finnair.

British Airways

From £546

Virgin Atlantic

From £498

Finnair

From £548

Lufthansa

From £591

What are the cheapest airlines that fly to Ontario?

The cheapest airlines flying from London to Ontario are Virgin Atlantic, British Airways and Finnair.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown American Airlines, Virgin Atlantic and KLM to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,513 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,339 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,285 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

786 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.5

Good

664 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 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 is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario typically cost £483, while return flights cost around £118.
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 27 minutes).
Does Ontario have car hire?
Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Ontario?
Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 mi away from Ontario).

See more FAQs

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Fly with Cheapflights

How does Cheapflights help users find flights to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario.

Can Cheapflights find flights to Ontario with no change fees?

Yes, we can. To see specific flights to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Ontario flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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£304+ Cheap flights to Ontario

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Ontario in 2025

Find the latest flights to Ontario in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 17 January 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Ontario

Cheapest flights to OntarioExplore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

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 858,174 searches and data was last updated on 17 January 2025.

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

Travel insights for flights to Ontario

Get recent, data-driven insights about flights to Ontario including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from London to Ontario. Price data was last updated on 10 January 2025.

How long is the flight to Ontario?

What are the most popular airlines that fly to Ontario?

What are the cheapest airlines that fly to Ontario?

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown American Airlines, Virgin Atlantic and KLM to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Ontario airport overview

What airport do you fly into for flights to Ontario?

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

What is the best airline to fly to Ontario?

What is the cheapest airport to fly to in Ontario?

Where does the fastest flight to Ontario depart from?

Does Ontario have car hire?

Are there hotels close to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Ontario by cabin class

Find flights to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Ontario?

Why should you use Cheapflights to find cheap flight tickets to Ontario?

Can Cheapflights find flights to Ontario with no change fees?

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

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Travel Smart

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.