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 £103, while return flights cost around £115.

How much is a return flight to Ontario?

A return flight to Ontario will typically cost around £145, however they can be found for as little as £145.

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).

£355+ Flights to Ontario, California

Flights to Ontario in 2025

Return from	£400
One-way from	£355
Popular in	August
Cheapest in	September
Average price	£466

American Airlines
12/3-2/4
Nonstop
22h 00m total
London to Los Angeles

Search Deals

16/3
1 total stop
26h 26m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£43 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for return flights in February 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 21 February 2025.

Thu 20/306:30LHR - ONT

2 stops18h 34mUnited Airlines

Thu 27/305:05ONT - LHR

2 stops19h 05mUnited Airlines

Deal found 19/2£400

Sat 8/314:30LHR - ONT

1 stop16h 22mKLM

Wed 12/313:30ONT - LHR

1 stop13h 30mKLM

Deal found 20/2£408

Fri 28/212:45LHR - ONT

1 stop17h 14mLufthansa

Fri 7/306:00ONT - LHR

1 stop17h 25mLufthansa

Deal found 20/2£417

Fri 25/413:25LHR - ONT

1 stop17h 17mVirgin Atlantic

Wed 30/414:35ONT - LHR

1 stop15h 40mVirgin Atlantic

Deal found 20/2£421

Tue 4/311:10LHR - ONT

2 stops17h 42mMultiple Airlines

Tue 11/313:40ONT - LHR

2 stops15h 10mMultiple Airlines

Deal found 20/2£433

Thu 27/210:45LHR - ONT

1 stop13h 43mDelta

Wed 12/313:30ONT - LHR

1 stop13h 30mDelta

Deal found 20/2£438

Sun 2/313:50LHR - ONT

1 stop18h 03mBritish Airways

Sun 9/323:59ONT - LHR

1 stop26h 41mBritish Airways

Deal found 20/2£448

Fri 25/407:45LCY - ONT

2 stops22h 57mDelta

Wed 30/413:20ONT - LCY

2 stops19h 20mDelta

Deal found 20/2£472

Tue 9/915:10LHR - ONT

1 stop16h 26mFinnair

Sat 13/923:09ONT - LHR

1 stop24h 31mFinnair

Deal found 20/2£581

Fri 25/411:45LGW - ONT

2 stops20h 05mIberia

Wed 30/412:50ONT - LGW

2 stops23h 10mIberia

Deal found 20/2£588

Thu 20/312:00LGW - ONT

1 stop26h 26mMultiple Airlines

Wed 26/300:59ONT - LGW

2 stops26h 01mMultiple Airlines

Deal found 19/2£623

Thu 1/508:15LHR - ONT

1 stop21h 07mJetBlue

Fri 9/522:40ONT - LHR

1 stop14h 05mJetBlue

Deal found 20/2£675

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 21 February 2025.

Thu 1/509:30LHR - ONT

2 stops20h 30mLufthansa

Wed 14/516:15ONT - LHR

1 stop12h 05mLufthansa

Deal found 21/2£397

Thu 20/306:30LHR - ONT

2 stops18h 34mUnited Airlines

Thu 27/305:05ONT - LHR

2 stops19h 05mUnited Airlines

Deal found 19/2£400

Sat 8/314:30LHR - ONT

1 stop16h 22mKLM

Wed 12/313:30ONT - LHR

1 stop13h 30mKLM

Deal found 20/2£408

Fri 25/413:25LHR - ONT

1 stop17h 17mVirgin Atlantic

Wed 30/414:35ONT - LHR

1 stop15h 40mVirgin Atlantic

Deal found 20/2£421

Tue 4/311:10LHR - ONT

2 stops17h 42mMultiple Airlines

Tue 11/313:40ONT - LHR

2 stops15h 10mMultiple Airlines

Deal found 20/2£433

Mon 10/310:40LHR - ONT

1 stop20h 14mBritish Airways

Wed 26/310:57ONT - LHR

1 stop13h 23mBritish Airways

Deal found 20/2£436

Fri 25/407:45LCY - ONT

2 stops22h 57mDelta

Wed 30/413:20ONT - LCY

2 stops19h 20mDelta

Deal found 20/2£472

Fri 25/411:45LGW - ONT

2 stops20h 05mIberia

Wed 30/412:50ONT - LGW

2 stops23h 10mIberia

Deal found 20/2£588

Mon 26/511:15LHR - ONT

1 stop18h 43mAmerican Airlines

Thu 12/610:32ONT - LHR

1 stop20h 08mAmerican Airlines

Deal found 21/2£634

Thu 1/508:15LHR - ONT

1 stop21h 07mJetBlue

Fri 9/522:40ONT - LHR

1 stop14h 05mJetBlue

Deal found 20/2£675

Mon 10/314:50LHR - ONT

3 stops32h 52mWestJet

Wed 26/311:42ONT - LHR

2 stops18h 08mWestJet

Deal found 20/2£940

Thu 20/312:00LGW - ONT

1 stop26h 26mMultiple Airlines

Wed 26/300:59ONT - LGW

2 stops26h 01mMultiple Airlines

Deal found 19/2£623

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated 21 February 2025 and is based on user searches.

Thu 27/212:00LGW - ONT

1 stop16h 35mMultiple Airlines

Thu 13/310:44ONT - LGW

1 stop16h 51mMultiple Airlines

Deal found 19/2£676

Thu 27/213:50LHR - ONT

1 stop18h 03mIberia

Sat 1/314:54ONT - LHR

1 stop31h 26mIberia

Deal found 20/2£769

Thu 27/210:45LHR - ONT

1 stop13h 43mDelta

Wed 12/313:30ONT - LHR

1 stop13h 30mDelta

Deal found 20/2£438

Fri 28/214:30LHR - ONT

1 stop16h 22mKLM

Wed 5/313:10ONT - LHR

1 stop13h 25mKLM

Deal found 20/2£558

Fri 28/212:45LHR - ONT

1 stop17h 14mLufthansa

Fri 14/306:00ONT - LHR

1 stop18h 25mLufthansa

Deal found 20/2£569

Sat 1/311:10LHR - ONT

2 stops17h 42mMultiple Airlines

Sat 8/310:38ONT - LHR

2 stops15h 32mMultiple Airlines

Deal found 20/2£877

Sun 2/313:45LHR - ONT

1 stop14h 55mUnited Airlines

Sun 30/315:55ONT - LHR

1 stop14h 15mUnited Airlines

Deal found 20/2£573

Sun 2/310:45LHR - ONT

1 stop13h 43mAir France

Sat 15/312:46ONT - LHR

1 stop14h 49mAir France

Deal found 20/2£8,390

Sun 2/309:25LHR - ONT

1 stop17h 10mBritish Airways

Sun 9/323:59ONT - LHR

1 stop24h 21mBritish Airways

Deal found 20/2£448

Mon 3/309:25LHR - ONT

1 stop17h 10mBritish Airways

Sat 8/307:00ONT - LHR

1 stop15h 20mBritish Airways

Deal found 20/2£8,983

Tue 4/311:10LHR - ONT

2 stops18h 49mMultiple Airlines

Tue 11/313:40ONT - LHR

2 stops15h 10mMultiple Airlines

Deal found 20/2£433

Sat 8/314:30LHR - ONT

1 stop16h 22mKLM

Wed 12/313:30ONT - LHR

1 stop13h 30mKLM

Deal found 20/2£408

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 21 February 2025.

Sun 16/312:00LGW - ONT

1 stop26h 26mMultiple Airlines

Deal found 19/2£355

Tue 20/514:10LHR - ONT

2 stops27h 44mMultiple Airlines

Deal found 21/2£441

Tue 18/314:10LHR - ONT

1 stop16h 44mIberia

Deal found 20/2£471

Thu 27/212:45LHR - ONT

1 stop17h 14mLufthansa

Deal found 20/2£477

Mon 3/318:15LCY - ONT

2 stops35h 44mLufthansa

Deal found 19/2£481

Mon 14/715:40LHR - ONT

1 stop13h 55mBritish Airways

Deal found 20/2£551

Wed 30/408:15LHR - ONT

1 stop21h 07mJetBlue

Deal found 21/2£589

Tue 27/516:25LHR - ONT

1 stop15h 19mFinnair

Deal found 20/2£620

Wed 16/714:10LHR - ONT

2 stops16h 31mWestJet

Deal found 20/2£658

Mon 3/321:40LHR - ONT

2 stops31h 20mAvianca

Deal found 20/2£716

Wed 30/407:10LGW - ONT

2 stops24h 40mIberia

Deal found 19/2£852

Sun 16/319:25LCY - ONT

2 stops46h 37mMultiple Airlines

Deal found 19/2£1,004

Find flights to Ontario within your budget

Fly from

Route

Depart

Return

Price

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 1/5

09:30-22:00

2 stops20h 30m

Ontario

Wed 14/5

16:15-12:20

1 stop12h 05m

£397

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 20/3

06:30-18:04

2 stops18h 34m

Ontario

Thu 27/3

05:05-07:10

2 stops19h 05m

£400

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 8/3

14:30-22:52

1 stop16h 22m

Ontario

Wed 12/3

13:30-10:00

1 stop13h 30m

£408

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Fri 25/4

13:25-22:42

1 stop17h 17m

Ontario

Wed 30/4

14:35-14:15

1 stop15h 40m

£421

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 4/3

11:10-20:52

2 stops17h 42m

Ontario

Tue 11/3

13:40-11:50

2 stops15h 10m

£433

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 10/3

10:40-23:54

1 stop20h 14m

Ontario

Wed 26/3

10:57-07:20

1 stop13h 23m

£436

LondonOntario

LCY - ONT

LCYONT

London City

Fri 25/4

07:45-22:42

2 stops22h 57m

Ontario

Wed 30/4

13:20-16:40

2 stops19h 20m

£472

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 25/4

11:45-23:50

2 stops20h 05m

Ontario

Wed 30/4

12:50-20:00

2 stops23h 10m

£588

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 20/3

12:00-07:26

1 stop26h 26m

Ontario

Wed 26/3

00:59-10:00

2 stops26h 01m

£623

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 26/5

11:15-21:58

1 stop18h 43m

Ontario

Thu 12/6

10:32-14:40

1 stop20h 08m

£634

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 35 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 77 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 46 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 £543

Finnair

From £548

Lufthansa

From £579

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 Delta, KLM and Finnair to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta

8.0

Very Good

8,217 reviews

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Virgin Atlantic

7.5

Good

654 reviews

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

United Airlines

7.4

Good

8,761 reviews

Delta

8.0

Very Good

8,217 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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 £103, while return flights cost around £115.
How much is a return flight to Ontario?
A return flight to Ontario will typically cost around £145, however they can be found for as little as £145.
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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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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£355+ 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 16/3. 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 21 February 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 21 February 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 21 February 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 21 February 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 14 February 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 Delta, KLM and Finnair 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?

How much is a return flight to 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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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 21 February 2025.