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HK$3,708+ 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 15-6. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
28 Apr — 5 May1
1 adult

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 70,647 searches and data was last updated on 23 April 2025.

Return from

HK$5,539

One-way from

HK$3,708

Popular in

August

Cheapest in

March

Average price

HK$6,501
China Airlines
  • China Airlines
  • 11-9-14-9
  • 2 total stops
  • 49h 50m total
  • Hong Kong to Los Angeles
星宇航空
  • 星宇航空
  • 15-6
  • 1 total stop
  • 35h 55m total
  • Hong Kong to Ontario
Highest demand for flights based on searches. 19% potential increase in price (HK$14,848 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$2,747 potential savings vs. average return price).
Average for return flights in April 2025

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 23 April 2025.

Mon 16-611:20HKG - ONT
1 stop20h 45m星宇航空
Fri 20-623:10ONT - HKG
1 stop28h 45m星宇航空
Deal found 21-4HK$6,036
Tue 9-917:30HKG - ONT
1 stop16h 10mChina Airlines
Wed 24-900:10ONT - HKG
1 stop18h 55mChina Airlines
Deal found 21-4HK$6,199
Tue 6-511:15HKG - ONT
1 stop16h 09mUnited Airlines
Tue 6-515:10ONT - HKG
1 stop22h 50mUnited Airlines
Deal found 21-4HK$6,431
Tue 9-915:25HKG - ONT
2 stops23h 34mMultiple Airlines
Thu 25-919:17ONT - HKG
2 stops23h 48mMultiple Airlines
Deal found 21-4HK$7,339
Sun 2-1100:55HKG - ONT
2 stops32h 22mDelta
Fri 28-1111:29ONT - HKG
2 stops43h 41mDelta
Deal found 22-4HK$10,660
Mon 8-900:45HKG - ONT
2 stops31h 32mKorean Air
Thu 25-907:00ONT - HKG
2 stops36h 40mKorean Air
Deal found 21-4HK$10,683
Tue 20-501:25HKG - ONT
2 stops32h 11mQatar Airways
Wed 28-510:51ONT - HKG
2 stops43h 54mQatar Airways
Deal found 21-4HK$10,908
Mon 11-823:00HKG - ONT
2 stops33h 32mBritish Airways
Tue 26-817:00ONT - HKG
2 stops31h 35mBritish Airways
Deal found 21-4HK$14,252
Sun 4-501:20HKG - ONT
2 stops35h 38mAmerican Airlines
Wed 28-523:59ONT - HKG
2 stops32h 01mAmerican Airlines
Deal found 21-4HK$15,632

Cheapflights Fare Finder

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 70,647 searches and data was last updated on 23 April 2025.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 16-6

11:20-17:05

1 stop20h 45m

Ontario

Fri 20-6

23:10-18:55

1 stop28h 45m

HK$6,036

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 9-9

17:30-18:40

1 stop16h 10m

Ontario

Wed 24-9

00:10-10:05

1 stop18h 55m

HK$6,199

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 6-5

11:15-12:24

1 stop16h 09m

Ontario

Tue 6-5

15:10-05:00

1 stop22h 50m

HK$6,431

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 9-9

15:25-23:59

2 stops23h 34m

Ontario

Thu 25-9

19:17-10:05

2 stops23h 48m

HK$7,339

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 8-9

00:45-17:17

2 stops31h 32m

Ontario

Thu 25-9

07:00-10:40

2 stops36h 40m

HK$10,683

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 20-5

01:25-18:36

2 stops32h 11m

Ontario

Wed 28-5

10:51-21:45

2 stops43h 54m

HK$10,908

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 4-5

00:45-16:44

2 stops30h 59m

Ontario

Mon 26-5

19:05-22:30

2 stops36h 25m

HK$13,561

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 11-8

23:00-17:32

2 stops33h 32m

Ontario

Tue 26-8

17:00-15:35

2 stops31h 35m

HK$14,252

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 4-5

01:20-21:58

2 stops35h 38m

Ontario

Wed 28-5

23:59-23:00

2 stops32h 01m

HK$15,632

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 7-5

22:45-22:29

2 stops38h 44m

Ontario

Wed 21-5

13:10-15:25

2 stops35h 15m

HK$17,805

Flights are sorted by cheapest return flights first.

Deals found on 22-4

Showing 1-10 of 21 results
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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.

Cheapflights Insights

Everything you need to know about your flight to Ontario

How long is the flight to Ontario?

On average, a flight from Hong Kong to Ontario takes 15 hours 58 minutes. Flights to Ontario from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from Hong Kong to Ontario is China Airlines.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm 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

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

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 23 April 2025.
To help decide which airline to fly to Ontario, see what other customers have to say about 星宇航空, EVA Air and Korean Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
星宇航空
9.1
Wonderful
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
8.0
Very Good
星宇航空
9.1
Wonderful

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

FAQs about flying to Ontario

  • What airport do you fly into for flights to Ontario?

    For a flight to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city.

  • 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, China Airlines is rated the highest out of the airlines that fly to Ontario.

  • Does Ontario have rental cars?

    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 km away from Ontario).

See more FAQs

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How does Cheapflights help users find flights to Ontario?

Deals for Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Ontario with no change fees?

Certainly. Search results for flights to Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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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