Find flights
When to book
Airlines
FAQs

Cheap flights from Hong Kong to Ontario from HK$3,405

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 15-1. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — ONT
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Hong Kong to Ontario

Enter your travel dates to find the best prices.

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 4 November 2025.

Thu 25-1222:30HKG - ONT
1 stop27h 31mUnited Airlines
Sat 3-105:05ONT - HKG
2 stops46h 15mUnited Airlines
Deal found 4-11HK$4,851
Mon 3-1122:30HKG - ONT
1 stop16h 21mUnited Airlines
Fri 28-1113:40ONT - HKG
1 stop25h 05mUnited Airlines
Deal found 3-11HK$4,913
Thu 13-1122:30HKG - ONT
1 stop16h 21mUnited Airlines
Tue 25-1113:40ONT - HKG
1 stop37h 40mUnited Airlines
Deal found 4-11HK$5,006
Tue 18-1117:35HKG - ONT
1 stop15h 15mChina Airlines
Wed 3-1222:50ONT - HKG
1 stop18h 25mChina Airlines
Deal found 2-11HK$5,434
Fri 21-1117:35HKG - ONT
1 stop15h 15mChina Airlines
Sat 29-1122:50ONT - HKG
1 stop18h 25mChina Airlines
Deal found 4-11HK$5,512
Sat 22-1114:05HKG - ONT
1 stop18h 45mChina Airlines
Sat 29-1122:50ONT - HKG
1 stop19h 20mChina Airlines
Deal found 2-11HK$5,519
Sat 15-1111:15HKG - ONT
1 stop20h 35m星宇航空
Sat 22-1121:45ONT - HKG
1 stop28h 45m星宇航空
Deal found 2-11HK$5,574
Wed 19-1110:35HKG - ONT
1 stop18h 02mUnited Airlines
Thu 4-1206:00ONT - HKG
2 stops38h 55mUnited Airlines
Deal found 3-11HK$5,706
Thu 20-1119:45HKG - ONT
1 stop36h 05m星宇航空
Fri 5-1221:45ONT - HKG
1 stop28h 45m星宇航空
Deal found 4-11HK$5,737
Fri 26-1219:45HKG - ONT
1 stop36h 05m星宇航空
Sat 27-1221:45ONT - HKG
1 stop20h 25m星宇航空
Deal found 4-11HK$5,753
Thu 25-1217:35HKG - ONT
1 stop15h 15mChina Airlines
Tue 30-1222:50ONT - HKG
1 stop25h 45mChina Airlines
Deal found 4-11HK$5,776

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 4 November 2025.

Round-trip from

HK$4,851

One-way from

HK$3,405

Popular in

July

Cheapest in

March

Average price

HK$6,647
United Airlines
  • United Airlines
  • 26-1-8-2
  • 2 total stops
  • 55h 53m total
  • Hong Kong to Ontario
Search Deals
星宇航空
  • 星宇航空
  • 15-1
  • 1 total stop
  • 36h 05m total
  • Hong Kong to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (HK$5,750 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$1,425 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 4 November 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

Thu 25-12

10:35-21:07

2 stops26h 32m

Ontario

Wed 7-1

05:05-19:20

2 stops46h 15m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 15-11

10:35-20:44

2 stops26h 09m

Ontario

Sun 23-11

05:05-19:20

2 stops46h 15m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 28-1

10:35-22:53

1 stop28h 18m

Ontario

Fri 6-2

06:00-19:20

1 stop21h 20m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 27-1

22:30-22:53

1 stop16h 23m

Ontario

Fri 6-2

06:00-19:20

1 stop21h 20m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 26-1

10:35-12:17

1 stop17h 42m

Ontario

Tue 10-2

05:05-19:20

2 stops46h 15m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Fri 20-2

10:35-20:50

2 stops26h 15m

Ontario

Tue 24-2

13:45-19:20

2 stops37h 35m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 23-12

22:30-21:07

2 stops38h 37m

Ontario

Thu 8-1

06:00-19:20

1 stop21h 20m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 22-11

22:30-22:51

1 stop16h 21m

Ontario

Mon 1-12

06:00-19:20

1 stop21h 20m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 28-1

10:35-20:58

2 stops26h 23m

Ontario

Sat 7-2

13:24-19:20

2 stops37h 56m

HK$4,851

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 15-11

10:35-17:34

1 stop22h 59m

Ontario

Mon 24-11

13:40-19:20

1 stop37h 40m

HK$4,851

Flights are sorted by cheapest return flights first.

Deals found on 4-11

Showing 1-10 of 22 results
1
2
3

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 month to book a flight from Hong Kong to Ontario?

Currently, October is the cheapest month in which you can book a flight from Hong Kong to Ontario (average of HK$4,773). Flying from Hong Kong to Ontario in July is currently the most expensive (average of HK$6,382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 4 November 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 54% versus a flight in the evening.

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 4 November 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.
China Airlines
8.3
Very Good
776 reviews
Check prices

Comfort

8.0

Overall

8.3

Boarding

8.3

Entertainment

8.0

Crew

8.5

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.
China Airlines
8.3
Very Good
776 reviews
China Airlines
8.3
Very Good
776 reviews
Check prices

Comfort

8.0

Overall

8.3

Boarding

8.3

Entertainment

8.0

Crew

8.5

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 26h 32m. 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$5,613), offers the cheapest pricing from Hong Kong to Ontario. This flight start at 20% 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.

  • What is the cheapest month to book a flight from Hong Kong to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Hong Kong to Ontario (average of HK$4,773). Flying from Hong Kong to Ontario in July is currently the most expensive (average of HK$6,382). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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.

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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestHK$5,613AverageHK$6,534FlexibilityNo cancel feeOn-time70%
Search China Airlines flights

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 from Hong Kong to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hong Kong 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 from Hong Kong to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Hong Kong to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Hong Kong to Ontario with no change fees?

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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.