Cheap flights from Hong Kong to Ontario from HK$3,240

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 5-10. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — ONT
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Hong Kong to Ontario

Keep the following information in mind while searching for Hong Kong to Ontario flight deals. Data was last updated 12 September 2025.

Round-trip from

HK$5,413

One-way from

HK$3,240

Popular in

November

Cheapest in

March

Average price

HK$6,815
United Airlines
  • United Airlines
  • 19-10-23-10
  • 2 total stops
  • 35h 22m total
  • Hong Kong to Ontario
5-10
  • 5-10
  • 2 total stops
  • 40h 38m total
  • Hong Kong to Ontario
Highest demand for flights based on searches. 6% potential increase in price (HK$4,366 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$2,387 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Hong Kong to Ontario

Cheapest flights from Hong Kong to Ontario
Explore the most affordable flight options available from Hong Kong to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Fri 12-911:15HKG - ONT
1 stop15h 58mUnited Airlines
Thu 25-909:36ONT - HKG
1 stop18h 19mUnited Airlines
Deal found 10-9HK$5,086
Thu 9-1022:30HKG - ONT
1 stop34h 10mUnited Airlines
Thu 16-1018:36ONT - HKG
1 stop19h 24mUnited Airlines
Deal found 11-9HK$5,429
Mon 3-1122:30HKG - ONT
1 stop16h 21mUnited Airlines
Fri 28-1113:40ONT - HKG
1 stop25h 05mUnited Airlines
Deal found 11-9HK$5,491
Tue 16-911:15HKG - ONT
1 stop21h 22mUnited Airlines
Sun 21-918:38ONT - HKG
2 stops43h 22mUnited Airlines
Deal found 11-9HK$5,584
Fri 12-910:15HKG - ONT
1 stop23h 25mChina Airlines
Wed 24-900:10ONT - HKG
1 stop25h 20mChina Airlines
Deal found 10-9HK$5,756
Fri 12-910:15HKG - ONT
1 stop23h 25mChina Airlines
Wed 15-1000:10ONT - HKG
1 stop21h 50mChina Airlines
Deal found 11-9HK$5,771
Tue 16-917:30HKG - ONT
1 stop15h 30mChina Airlines
Sat 20-900:10ONT - HKG
1 stop18h 05mChina Airlines
Deal found 11-9HK$5,849
Mon 27-1011:15HKG - ONT
1 stop20h 35m星宇航空
Wed 3-1221:45ONT - HKG
1 stop28h 45m星宇航空
Deal found 9-9HK$5,857

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Hong Kong to Ontario that are best for you.

Fly from

Hong Kong

Fly to

Ontario

Route

Departure

Return

Price

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 19-10

11:15-12:13

1 stop15h 58m

Ontario

Thu 23-10

18:36-05:00

1 stop19h 24m

HK$5,413

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Fri 10-10

11:15-20:24

2 stops48h 09m

Ontario

Thu 16-10

09:36-18:55

1 stop18h 19m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Fri 20-2

10:35-20:17

2 stops25h 42m

Ontario

Tue 24-2

13:00-06:45

2 stops25h 45m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 23-9

11:15-12:13

1 stop15h 58m

Ontario

Tue 30-9

05:05-18:55

2 stops22h 50m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Thu 5-3

22:30-12:33

2 stops30h 03m

Ontario

Thu 26-3

05:40-19:20

2 stops22h 40m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 24-9

11:15-17:37

1 stop21h 22m

Ontario

Wed 1-10

09:36-18:55

1 stop18h 19m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 12-10

22:30-22:52

1 stop15h 22m

Ontario

Sun 19-10

13:53-05:00

1 stop24h 07m

HK$5,429

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 27-12

14:05-16:50

1 stop18h 45m

HK$3,583

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 5-11

14:05-16:50

1 stop18h 45m

HK$3,583

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 23-2

11:10-16:50

1 stop21h 40m

HK$3,583

Flights are sorted by cheapest return flights first.

Deals found on 11-9

Showing 1-10 of 17 results
1
2

Best time to book a flight from Hong Kong to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Hong Kong 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 from Hong Kong to Ontario

What is the cheapest time of day to fly from HK to ONT?

Find hourly flight availability from Hong Kong to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Hong Kong to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 41% versus a flight in the morning.

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 12 September 2025.
See what other customers who have flown with China Airlines from Hong Kong to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.3

Boarding

8.3

Crew

8.5

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Overall

8.3

Boarding

8.3

Crew

8.5

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Hong Kong?

    If you book a flight to Ontario from Hong Kong, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario.

  • How long is the flight from Hong Kong to Ontario?

    United Airlines can get you from Hong Kong to Ontario in just under 15h 58m. Your travel time can differ by up to . The distance between Hong Kong and Ontario is about 11705 km.

  • What is the cheapest airline to fly from Hong Kong to Ontario round-trip?

    According to our current data, China Airlines (HK$5,810), offers the cheapest pricing from Hong Kong to Ontario. This flight start at 24% lower than the current average price 3 months from now.

  • Can I find deals for flights from Hong Kong to Ontario that include hotel bookings?

    Yes. In addition to deals on Hong Kong to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Ontario.

  • Can I find deals for business class flights from Hong Kong to Ontario?

    Yes. Cheapflights offers flight deals from Hong Kong to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Hong Kong to Ontario

Discover the top airline that operate flights from Hong Kong to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestHK$5,810AverageHK$6,772FlexibilityNo cancel feeOn-time70%
Search China Airlines flights

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Need flexible booking options for your flight to Ontario from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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