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$415+ Cheap flights from Ontario (ONT) to Hong Kong (HKG)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Hong Kong Intl are usually found in April or March, booked 21 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Ontario to Hong Kong

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Hong Kong (HKG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 14, 2025.

Round-trip from

$771
(oojo)

One-way from

$415
(oojo)

Popular in

December

Cheapest in

April

Average price

$955
From Ontario to Hong Kong Intl
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One-way flight from Ontario to Hong Kong Intl
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Highest demand for flights based on searches. 8% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Ontario to Hong Kong

Cheapest flights from Ontario to Hong Kong
Explore the most affordable flight options available from Ontario to Hong Kong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3011:45 pmONT - HKG
1 stop23h 30mMultiple Airlines
sáb. 9/69:15 amHKG - ONT
1 stop22h 50mMultiple Airlines
Deal found 8/13$771
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1311:10 pmONT - HKG
1 stop33h 35mMultiple Airlines
dom. 9/216:50 pmHKG - ONT
1 stop37h 15mMultiple Airlines
Deal found 8/14$772
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/266:37 amONT - HKG
2 stops43h 13mDelta
mié. 10/296:10 pmHKG - ONT
2 stops43h 31mDelta
Deal found 8/13$774
This Korean Air deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/266:37 amONT - HKG
2 stops37h 43mKorean Air
mar. 10/2812:55 amHKG - ONT
2 stops31h 15mKorean Air
Deal found 8/13$775
This Gotogate deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/611:10 pmONT - HKG
1 stop31h 05mMultiple Airlines
mar. 10/2810:55 pmHKG - ONT
1 stop32h 55mMultiple Airlines
Deal found 8/14$788
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/226:00 amONT - HKG
2 stops43h 20mDelta
lun. 11/1712:55 amHKG - ONT
2 stops32h 22mDelta
Deal found 8/13$789
This Korean Air deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/216:37 amONT - HKG
2 stops37h 03mKorean Air
sáb. 11/1512:55 amHKG - ONT
2 stops32h 22mKorean Air
Deal found 8/13$793
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1711:10 pmONT - HKG
1 stop19h 45mMultiple Airlines
vie. 9/196:50 pmHKG - ONT
1 stop37h 15mMultiple Airlines
Deal found 8/13$795
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/39:45 pmONT - HKG
1 stop31h 40mMultiple Airlines
lun. 12/293:45 pmHKG - ONT
1 stop16h 45mMultiple Airlines
Deal found 8/14$796
This Booking.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2011:10 pmONT - HKG
1 stop23h 55mMultiple Airlines
mié. 11/1210:25 amHKG - ONT
1 stop22h 05mMultiple Airlines
Deal found 8/13$800
This Trip.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2411:10 pmONT - HKG
1 stop20h 20mMultiple Airlines
vie. 10/314:35 pmHKG - ONT
1 stop15h 15mMultiple Airlines
Deal found 8/14$807
This Trip.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/59:45 pmONT - HKG
1 stop20h 45mMultiple Airlines
sáb. 11/152:00 pmHKG - ONT
1 stop18h 30mMultiple Airlines
Deal found 8/13$809

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Hong Kong 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 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Ontario to Hong Kong that are best for you.

Fly from

Ontario

Fly to

Hong Kong

Route

Depart

Return

Price

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

sáb. 9/13

11:10 pm-5:50 pm

1 stop27h 40m

Hong Kong Intl

jue. 9/25

6:50 pm-5:05 pm

1 stop37h 15m

$772

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

sáb. 9/13

11:10 pm-5:50 pm

1 stop27h 40m

Hong Kong Intl

lun. 9/22

12:55 pm-5:05 pm

1 stop19h 10m

$772

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

dom. 10/26

6:37 am-4:50 pm

2 stops43h 13m

Hong Kong Intl

mié. 10/29

6:10 pm-10:41 pm

2 stops43h 31m

$774

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

dom. 10/26

6:37 am-11:20 am

2 stops37h 43m

Hong Kong Intl

mar. 10/28

12:55 am-5:10 pm

2 stops31h 15m

$775

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mar. 9/16

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

jue. 9/25

12:20 pm-10:40 pm

2 stops25h 20m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 9/3

6:05 am-10:30 pm

2 stops25h 25m

Hong Kong Intl

mié. 9/10

12:20 pm-10:42 pm

2 stops25h 22m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 10/22

6:00 am-4:20 pm

2 stops43h 20m

Hong Kong Intl

mié. 11/19

12:55 am-10:42 pm

2 stops37h 47m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

lun. 9/15

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

mié. 9/24

12:20 pm-10:40 pm

2 stops25h 20m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

jue. 9/11

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

jue. 9/25

12:20 pm-10:40 pm

2 stops25h 20m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

lun. 9/1

6:05 am-10:30 pm

2 stops25h 25m

Hong Kong Intl

jue. 9/11

12:20 pm-10:40 pm

2 stops25h 20m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Hong Kong

Have a flexible travel schedule? Discover the best time to fly to Hong Kong from Ontario with our price prediction graph.
Estimated round-trip 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 Ontario to Hong Kong

How far ahead should I book a flight from Ontario to Hong Kong?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Hong Kong. Price data was last updated on August 8, 2025.

The price you pay for your flight from Ontario to Hong Kong may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $949). Flying from Ontario to Hong Kong in December is currently the most expensive (average of $1,629). 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 ONT to HKG?

Find hourly flight availability from Ontario to Hong Kong. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

One of the essential ways to save on airfare from Ontario to Hong Kong is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 19% on airfare.

Reviews of airlines servicing Hong Kong

Get insights into the airlines that provide service to Hong Kong. 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 Hong Kong. Reviews last updated agosto 14, 2025.
Get a feel of what it's like to fly with China Airlines, Cathay Pacific, and United Airlines from Ontario to Hong Kong by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
762 reviews

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

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
762 reviews
China Airlines
8.3
Very good
762 reviews

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

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.
Cathay Pacific
7.6
Good
968 reviews
China Airlines
8.3
Very good
762 reviews

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

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.
United Airlines
7.4
Good
8,916 reviews
China Airlines
8.3
Very good
762 reviews

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Food

7.8

Overall

8.3

Crew

8.5

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 Ontario to Hong Kong. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Ontario to Hong Kong round-trip?

    According to our current data, Cathay Pacific ($851), China Airlines ($858), and United Airlines ($977) offers the cheapest pricing from Ontario to Hong Kong. Users have found that Cathay Pacific is 21% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Hong Kong 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 Ontario to Hong Kong?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $949). Flying from Ontario to Hong Kong in December is currently the most expensive (average of $1,629). 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 3 airlines flying from Ontario to Hong Kong

Discover the top 3 airlines that operate flights from Ontario to Hong Kong. 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 2,558,603 searches. Data last updated agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$851Average$1,216FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$858Average$963FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$977Average$1,218FlexibilityNo cancel feeOn-time69%

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