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$405+ Cheap flights from Ontario (ONT) to Hong Kong

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
1 adult, Economy
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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 March 20, 2026.

This flugladen.de deal was found by Cheapflights users on 3/16. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:10 am
ONT
-
HKG
1 stop18h 05m
China Airlines
Fri 5/12:05 pm
HKG
-
ONT
1 stop18h 55m
China Airlines
Deal found 3/16$847
This oojo deal was found by Cheapflights users on 3/16. 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.
Wed 4/2912:10 am
ONT
-
HKG
1 stop21h 55m
China Airlines
Mon 5/115:35 pm
HKG
-
ONT
1 stop15h 25m
China Airlines
Deal found 3/16$853
This SmartFares deal was found by Cheapflights users on 3/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am
ONT
-
HKG
1 stop17h 30m
China Airlines
Wed 9/162:05 pm
HKG
-
ONT
1 stop18h 55m
China Airlines
Deal found 3/16$854
This oojo deal was found by Cheapflights users on 3/17. 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.
Thu 4/2312:10 am
ONT
-
HKG
1 stop21h 55m
China Airlines
Sun 5/319:15 pm
HKG
-
ONT
1 stop35h 45m
China Airlines
Deal found 3/17$855
This SmartFares deal was found by Cheapflights users on 3/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:10 am
ONT
-
HKG
1 stop21h 55m
China Airlines
Sun 5/178:10 pm
HKG
-
ONT
1 stop36h 50m
China Airlines
Deal found 3/17$863
This FlightHub deal was found by Cheapflights users on 3/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:00 pm
ONT
-
HKG
2 stops30h 05m
Multiple Airlines
Mon 10/1910:15 am
HKG
-
ONT
1 stop22h 45m
Multiple Airlines
Deal found 3/16$878
This oojo deal was found by Cheapflights users on 3/18. 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.
Thu 4/2312:10 am
ONT
-
HKG
1 stop18h 05m
China Airlines
Sun 5/39:15 pm
HKG
-
ONT
1 stop35h 45m
China Airlines
Deal found 3/18$879
This oojo deal was found by Cheapflights users on 3/19. 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 4/1312:10 am
ONT
-
HKG
1 stop25h 25m
China Airlines
Tue 5/58:10 pm
HKG
-
ONT
1 stop36h 50m
China Airlines
Deal found 3/19$880
This oojo deal was found by Cheapflights users on 3/15. 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.
Sun 4/1212:10 am
ONT
-
HKG
1 stop21h 55m
China Airlines
Mon 4/209:15 pm
HKG
-
ONT
1 stop35h 45m
China Airlines
Deal found 3/15$884
This oojo deal was found by Cheapflights users on 3/17. 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 5/912:10 am
ONT
-
HKG
1 stop21h 55m
China Airlines
Tue 5/262:05 pm
HKG
-
ONT
1 stop18h 55m
China Airlines
Deal found 3/17$887
This oojo deal was found by Cheapflights users on 3/18. 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 9/411:10 pm
ONT
-
HKG
1 stop31h 00m
Multiple Airlines
Sat 9/1912:55 pm
HKG
-
ONT
1 stop19h 10m
Multiple Airlines
Deal found 3/18$888

Find flight deals from Ontario to Hong Kong

Keep the following information in mind while searching for Ontario to Hong Kong flight deals. Data was last updated March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$847
(flugladen.de)

One-way from

$405
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$919
Provider with most accurate pricing for Los Angeles Los Angeles-Hong Kong Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Hong Kong Intl flights.
Search Deals
From Ontario to Hong Kong
Search Deals
One-way flight from Ontario to Hong Kong
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 20, 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

Thu 4/30

6:59 pm-5:00 am

1 stop19h 01m

Hong Kong Intl

Tue 5/26

11:45 am-10:37 pm

1 stop25h 52m

$1,131

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 4/29

1:27 pm-5:00 am

1 stop24h 33m

Hong Kong Intl

Thu 5/28

11:45 am-5:56 pm

1 stop21h 11m

$1,131

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 5/17

6:00 am-6:55 pm

1 stop21h 55m

Hong Kong Intl

Tue 5/26

2:45 pm-10:37 pm

2 stops46h 52m

$1,131

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 3/31

11:05 am-5:00 am

1 stop26h 55m

Hong Kong Intl

Thu 4/16

10:30 pm-12:20 pm

1 stop28h 50m

$1,137
Quickest round-trip

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 5/6

7:00 am-10:45 pm

2 stops24h 45m

Hong Kong Intl

Sun 5/17

12:20 pm-5:10 pm

2 stops19h 50m

$1,176

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 5/5

1:40 pm-5:00 am

2 stops24h 20m

Hong Kong Intl

Sun 5/17

11:45 am-5:52 pm

1 stop21h 07m

$1,185

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 4/17

5:10 am-5:00 am

2 stops32h 50m

Hong Kong Intl

Sat 4/25

11:45 am-12:20 pm

1 stop15h 35m

$1,185

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 5/8

6:59 pm-5:00 am

1 stop19h 01m

Hong Kong Intl

Sun 5/31

2:45 pm-10:37 pm

2 stops46h 52m

$1,192

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Thu 4/2

6:00 am-6:55 pm

1 stop21h 55m

Hong Kong Intl

Mon 4/20

10:30 pm-8:36 pm

2 stops37h 06m

$1,238

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Thu 3/26

6:15 am-7:20 pm

1 stop22h 05m

Hong Kong Intl

Thu 4/2

11:45 am-10:45 pm

1 stop26h 00m

$1,338

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 23 resultsSorted by cheapest first
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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 March 13, 2026.

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 77 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, June is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $489). Flying from Ontario to Hong Kong in July is currently the most expensive (average of $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.

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 March 20, 2026.
Read through reviews of airlines operating flights from Ontario to Hong Kong, such as China Airlines,Cathay Pacific, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
814 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Comfort

8.0

Entertainment

8.0

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
814 reviews
China Airlines
8.3
Very good
814 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Comfort

8.0

Entertainment

8.0

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.
Cathay Pacific
7.6
Good
1,217 reviews
China Airlines
8.3
Very good
814 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Comfort

8.0

Entertainment

8.0

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
9,443 reviews
China Airlines
8.3
Very good
814 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Comfort

8.0

Entertainment

8.0

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.

  • What airport do you fly from for flights from Ontario to Hong Kong?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Hong Kong.

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

    Departing from Ontario to Hong Kong will take you 19h 01m. The distance from Ontario to Hong Kong is about 7273 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, China Airlines ($825), United Airlines ($908), and Cathay Pacific ($1,138) offers the cheapest pricing from Ontario to Hong Kong. Users have found that China Airlines is 20% 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, June is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $489). Flying from Ontario to Hong Kong in July is currently the most expensive (average of $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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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 March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$825Average$894FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$908Average$1,116FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,138Average$1,216FlexibilityNo cancel feeOn-time72%

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