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$435+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Find cheap flights from Ontario to Hong Kong with Cheapflights

1. Tell us where you want to go

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Cheap 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 July 21, 2026.

This oojo deal was found by Cheapflights users on 7/19. 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.
Sat 10/1711:30 pm
ONT
-
HKG
1 stop19h 30m
Multiple Airlines
Sat 10/319:00 am
HKG
-
ONT
1 stop22h 55m
Multiple Airlines
Deal found 7/19$925
This oojo deal was found by Cheapflights users on 7/16. 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.
Sat 11/289:45 pm
ONT
-
HKG
1 stop20h 30m
Multiple Airlines
Mon 12/284:30 pm
HKG
-
ONT
1 stop15h 25m
Multiple Airlines
Deal found 7/16$926
This oojo deal was found by Cheapflights users on 7/19. 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.
Fri 9/411:30 pm
ONT
-
HKG
1 stop19h 30m
Multiple Airlines
Sun 9/136:50 pm
HKG
-
ONT
1 stop37h 15m
Multiple Airlines
Deal found 7/19$927
This oojo deal was found by Cheapflights users on 7/20. 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.
Sat 11/79:45 pm
ONT
-
HKG
1 stop20h 30m
Multiple Airlines
Sun 11/156:50 pm
HKG
-
ONT
1 stop37h 05m
Multiple Airlines
Deal found 7/20$928
This Expedia deal was found by Cheapflights users on 7/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:02 am
ONT
-
HKG
2 stops25h 58m
Multiple Airlines
Sun 11/112:40 am
HKG
-
ONT
2 stops33h 48m
Multiple Airlines
Deal found 7/19$929
This Justfly.com deal was found by Cheapflights users on 7/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/279:45 pm
ONT
-
HKG
1 stop31h 40m
Multiple Airlines
Tue 12/2910:55 pm
HKG
-
ONT
1 stop33h 00m
Multiple Airlines
Deal found 7/21$933
This oojo deal was found by Cheapflights users on 7/19. 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.
Mon 10/1911:30 pm
ONT
-
HKG
1 stop19h 30m
Multiple Airlines
Thu 11/510:55 pm
HKG
-
ONT
1 stop33h 00m
Multiple Airlines
Deal found 7/19$949
This oojo deal was found by Cheapflights users on 7/18. 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.
Fri 11/279:45 pm
ONT
-
HKG
1 stop20h 45m
Multiple Airlines
Tue 12/810:55 pm
HKG
-
ONT
1 stop33h 00m
Multiple Airlines
Deal found 7/18$952
This oojo deal was found by Cheapflights users on 7/20. 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.
Sat 10/3110:45 pm
ONT
-
HKG
1 stop20h 30m
Multiple Airlines
Sun 11/810:55 pm
HKG
-
ONT
1 stop33h 00m
Multiple Airlines
Deal found 7/20$954
This oojo deal was found by Cheapflights users on 7/21. 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.
Mon 9/711:30 pm
ONT
-
HKG
1 stop30h 40m
Multiple Airlines
Sun 9/136:15 pm
HKG
-
ONT
1 stop37h 50m
Multiple Airlines
Deal found 7/21$956
This Trip.com deal was found by Cheapflights users on 7/18. 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.
Mon 9/2111:30 pm
ONT
-
HKG
1 stop19h 30m
Multiple Airlines
Wed 9/303:45 pm
HKG
-
ONT
1 stop16h 20m
Multiple Airlines
Deal found 7/18$959

Find 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 July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$925
(oojo)

One-way from

$315
(China Airlines)

Popular in

December

Cheapest in

February

Average price

$1,362
Provider with most accurate pricing for Ontario-Hong Kong Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Hong Kong Intl flights.
Search Deals
From Ontario to Hong Kong Intl
Search Deals
One-way flight from Ontario to Hong Kong Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 21, 2026.
Use the filters below to find and compare flights from Ontario to Hong Kong that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 11/3

10:50 pm-10:10 am

1 stop19h 20m

Hong Kong Intl

Mon 11/16

2:05 pm-5:05 pm

1 stop19h 00m

$1,112
Quickest round-trip

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 8/19

12:45 am-10:05 am

1 stop18h 20m

Hong Kong Intl

Sat 12/19

1:30 pm-5:05 pm

2 stops19h 35m

$1,273

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 11/24

10:50 pm-4:35 pm

1 stop25h 45m

Hong Kong Intl

Tue 12/29

1:30 pm-5:05 pm

2 stops19h 35m

$1,357

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 11/28

5:00 am-6:45 am

2 stops33h 45m

Hong Kong Intl

Sun 12/27

12:05 am-10:48 pm

2 stops38h 43m

$1,388

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 9/6

6:02 am-10:05 pm

2 stops25h 03m

Hong Kong Intl

Wed 12/2

10:20 am-2:47 pm

2 stops20h 27m

$1,533

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 10/20

6:02 am-10:05 pm

2 stops25h 03m

Hong Kong Intl

Wed 11/4

10:20 am-3:15 pm

2 stops20h 55m

$1,533

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 10/20

6:02 am-10:05 pm

2 stops25h 03m

Hong Kong Intl

Sun 11/1

10:20 am-4:15 pm

2 stops20h 55m

$1,533

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 9/7

6:02 am-10:05 pm

2 stops25h 03m

Hong Kong Intl

Wed 12/2

10:20 am-2:47 pm

2 stops20h 27m

$1,533

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/31

6:02 am-10:05 pm

2 stops25h 03m

Hong Kong Intl

Sun 9/13

10:30 am-11:24 pm

2 stops27h 54m

$1,533

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 12/27

6:00 am-5:45 am

2 stops55h 45m

Hong Kong Intl

Thu 12/31

10:35 am-10:48 pm

1 stop28h 13m

$1,584

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to Hong Kong

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Hong Kong in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
business-class.comPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Hong Kong flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Hong Kong flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Hong Kong flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Hong Kong flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Hong Kong flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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 7 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, February is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $845). Flying from Ontario to Hong Kong in December is currently the most expensive (average of $1,822). 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.

How much does it cost to fly round-trip from Ontario to Hong Kong?

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 July 21, 2026.
Get a feel of what it's like to fly with China Airlines 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
836 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

Overall

8.3

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very good
836 reviews
China Airlines
8.3
Very good
836 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

Overall

8.3

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
United Airlines
7.4
Good
10,016 reviews
China Airlines
8.3
Very good
836 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

Overall

8.3

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

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.

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

    Departing from Ontario to Hong Kong will take you 18h 25m. The distance from Ontario to Hong Kong is about 7273 mi.

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

    According to our current data, United Airlines ($509), and China Airlines ($825) offers the cheapest pricing from Ontario to Hong Kong. Users have found that United Airlines is 52% 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, February is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $845). Flying from Ontario to Hong Kong in December is currently the most expensive (average of $1,822). 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

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Alternative routes for Ontario to Hong Kong

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Hong Kong

Discover the top 2 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$509Average$1,116FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$825Average$900FlexibilityNo cancel feeOn-time70%

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