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Ontario

$448+ Cheap flights from Hong Kong to Ontario (ONT)

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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — ONT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:35 amHKG - ONT
1 stop23h 16mUnited Airlines
Wed 1/71:53 pmONT - HKG
1 stop37h 27mUnited Airlines
Deal found 12/17$621
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:35 amHKG - ONT
1 stop15h 24mUnited Airlines
Thu 1/156:00 amONT - HKG
1 stop21h 20mUnited Airlines
Deal found 12/16$623
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:30 pmHKG - ONT
2 stops38h 37mUnited Airlines
Mon 1/56:39 pmONT - HKG
2 stops43h 06mUnited Airlines
Deal found 12/17$733
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:35 amHKG - ONT
1 stop15h 26mUnited Airlines
Thu 1/18:11 amONT - HKG
1 stop19h 09mUnited Airlines
Deal found 12/15$842
This oojo deal was found by Cheapflights users on 12/16. 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.
Tue 12/237:45 pmHKG - ONT
1 stop36h 05mSTARLUX Airlines
Sat 12/279:45 pmONT - HKG
1 stop20h 25mSTARLUX Airlines
Deal found 12/16$904
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:30 pmHKG - ONT
1 stop16h 11mUnited Airlines
Sat 1/36:39 pmONT - HKG
1 stop20h 06mUnited Airlines
Deal found 12/17$919
This oojo deal was found by Cheapflights users on 12/17. 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 12/2011:15 amHKG - ONT
1 stop20h 35mSTARLUX Airlines
Sat 12/279:45 pmONT - HKG
1 stop28h 45mSTARLUX Airlines
Deal found 12/17$1,158
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:00 amHKG - ONT
2 stops23h 43mUnited Airlines
Sun 1/410:42 amONT - HKG
1 stop40h 38mUnited Airlines
Deal found 12/17$1,164
This oojo deal was found by Cheapflights users on 12/17. 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.
Mon 12/2911:15 amHKG - ONT
1 stop20h 35mSTARLUX Airlines
Fri 1/29:45 pmONT - HKG
1 stop28h 45mSTARLUX Airlines
Deal found 12/17$1,176
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:35 amHKG - ONT
1 stop23h 08mUnited Airlines
Tue 12/305:05 amONT - HKG
2 stops33h 40mUnited Airlines
Deal found 12/15$1,183

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$618
(United Airlines)

One-way from

$448
(oojo)

Popular in

January

Cheapest in

November

Average price

$880
Provider with most accurate pricing for Hong Kong Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hong Kong Intl-Los Angeles flights.
Search Deals
From Hong Kong to Ontario
Search Deals
One-way flight from Hong Kong to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 18, 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

Depart

Return

Price

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Fri 1/23

10:35 am-11:18 am

1 stop16h 43m

Ontario

Fri 1/23

1:53 pm-6:45 am

1 stop24h 52m

$618

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Mon 2/2

10:30 pm-12:47 pm

2 stops30h 17m

Ontario

Sat 2/28

6:10 am-7:20 pm

1 stop21h 10m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 3/7

10:35 am-10:57 pm

1 stop28h 22m

Ontario

Mon 3/9

5:15 am-5:45 am

2 stops33h 30m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 2/24

10:30 pm-5:41 pm

1 stop35h 11m

Ontario

Mon 3/2

1:50 pm-7:20 pm

1 stop37h 30m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Thu 1/29

10:35 am-10:53 pm

1 stop28h 18m

Ontario

Thu 2/5

6:39 pm-7:20 pm

1 stop32h 41m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 1/20

10:30 pm-10:53 pm

1 stop16h 23m

Ontario

Tue 1/27

6:00 am-7:20 pm

1 stop21h 20m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 4/14

10:30 pm-12:20 pm

1 stop28h 50m

Ontario

Mon 4/27

6:53 pm-5:00 am

1 stop19h 07m

$623

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 5/31

5:35 pm-6:00 pm

1 stop15h 25m

$448

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sun 2/22

9:10 pm-4:50 pm

1 stop35h 40m

$448

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 3/4

5:35 pm-4:50 pm

1 stop15h 15m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 18 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 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 Hong Kong to Ontario

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

Currently, November is the cheapest month in which you can book a flight from Hong Kong to Ontario (average of $599). Flying from Hong Kong to Ontario in July is currently the most expensive (average of $819). 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 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 December 18, 2025.
Get a feel of what it's like to fly with China Airlines from Hong Kong to Ontario 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
792 reviews

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Crew

8.5

Overall

8.3

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.
China Airlines
8.3
Very good
792 reviews
China Airlines
8.3
Very good
792 reviews

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Crew

8.5

Overall

8.3

Food

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.

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 3.1 mi from the center of Ontario.

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

    Departing from Hong Kong to Ontario will take you 16h 43m. The distance from Hong Kong to Ontario is about 7273 mi.

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

    Cheapflights users have booked flights from Hong Kong to Ontario round-trip from $768. You may be able to fly from Hong Kong to Ontario for 15% less than the average price by searching for this airline.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Hong Kong to Ontario (average of $599). Flying from Hong Kong to Ontario in July is currently the most expensive (average of $819). 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

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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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time70%

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