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$365+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Hong Kong are usually found in August or September, booked 21 days in advance, depart on a Monday or Wednesday and return on a Wednesday

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 diciembre 16, 2025.

This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3010:50 pmONT - HKG
1 stop18h 25mChina Airlines
mié. 1/148:05 pmHKG - ONT
1 stop36h 45mChina Airlines
Deal found 12/14$1,163
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:00 amONT - HKG
1 stop21h 20mUnited Airlines
sáb. 1/310:35 amHKG - ONT
1 stop15h 24mUnited Airlines
Deal found 12/14$1,290
This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2410:50 pmONT - HKG
1 stop19h 20mChina Airlines
lun. 1/1910:20 amHKG - ONT
1 stop22h 30mChina Airlines
Deal found 12/14$1,332
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/3110:50 pmONT - HKG
1 stop18h 25mMultiple Airlines
sáb. 1/37:40 amHKG - ONT
2 stops25h 10mMultiple Airlines
Deal found 12/15$1,346
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:40 pmONT - HKG
2 stops61h 40mUnited Airlines
lun. 1/1910:35 amHKG - ONT
1 stop23h 08mUnited Airlines
Deal found 12/14$1,360
This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3010:50 pmONT - HKG
1 stop18h 25mChina Airlines
sáb. 1/109:10 pmHKG - ONT
1 stop35h 40mChina Airlines
Deal found 12/14$1,371
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:00 amONT - HKG
1 stop21h 20mUnited Airlines
vie. 12/1910:30 pmHKG - ONT
1 stop16h 11mUnited Airlines
Deal found 12/14$1,440
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.
mar. 12/236:39 pmONT - HKG
1 stop32h 41mUnited Airlines
sáb. 12/2710:30 pmHKG - ONT
1 stop16h 11mUnited Airlines
Deal found 12/15$1,447
This oojo deal was found by Cheapflights users on 12/13. 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. 12/3110:50 pmONT - HKG
1 stop19h 20mChina Airlines
mié. 1/78:05 pmHKG - ONT
1 stop36h 45mChina Airlines
Deal found 12/13$1,489
This SmartFares deal was found by Cheapflights users on 12/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/319:45 pmONT - HKG
1 stop20h 25mSTARLUX Airlines
sáb. 1/1011:15 amHKG - ONT
1 stop20h 35mSTARLUX Airlines
Deal found 12/14$1,526
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3010:42 amONT - HKG
1 stop28h 03mUnited Airlines
sáb. 1/1010:35 amHKG - ONT
2 stops26h 23mUnited Airlines
Deal found 12/14$1,537

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 diciembre 16, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$638
(Delta)

One-way from

$365
(Delta)

Popular in

December

Cheapest in

August

Average price

$1,789
Provider with most accurate pricing for Los Angeles-Hong Kong Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for 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. 13% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($66 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 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 diciembre 16, 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

mar. 3/17

6:00 am-11:10 pm

2 stops26h 10m

Hong Kong Intl

jue. 3/26

12:35 pm-10:34 pm

2 stops24h 59m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

lun. 1/12

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

jue. 1/29

12:35 pm-10:51 pm

2 stops26h 16m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

lun. 3/9

6:00 am-11:10 pm

2 stops26h 10m

Hong Kong Intl

mar. 3/17

12:55 am-10:34 pm

2 stops36h 39m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mar. 3/17

6:00 am-11:10 pm

2 stops26h 10m

Hong Kong Intl

lun. 3/30

12:20 pm-11:54 pm

2 stops26h 34m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

dom. 4/5

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

jue. 4/16

12:20 pm-5:16 pm

2 stops19h 56m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 4/1

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

lun. 4/13

12:20 pm-5:16 pm

2 stops19h 56m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 2/11

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

dom. 3/15

12:35 pm-11:54 pm

2 stops26h 19m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 3/4

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

dom. 3/15

12:35 pm-10:34 pm

2 stops24h 59m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

dom. 3/22

6:00 am-11:10 pm

2 stops26h 10m

Hong Kong Intl

mié. 3/25

12:35 pm-10:34 pm

2 stops24h 59m

$638

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

mié. 4/1

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

jue. 4/16

12:20 pm-5:16 pm

2 stops19h 56m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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 December 12, 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 $597). Flying from Ontario to Hong Kong in June is currently the most expensive (average of $896). 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 HK?

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 diciembre 16, 2025.

It’s optimal to fly from Ontario to Hong Kong in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

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 diciembre 16, 2025.
Read through reviews of airlines operating flights from Ontario to Hong Kong, such as China Airlines, Cathay Pacific, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
792 reviews

Entertainment

8.0

Crew

8.5

Overall

8.3

Food

7.8

Boarding

8.3

Comfort

8.0

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

Entertainment

8.0

Crew

8.5

Overall

8.3

Food

7.8

Boarding

8.3

Comfort

8.0

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.
Cathay Pacific
7.6
Good
1,095 reviews
China Airlines
8.3
Very good
792 reviews

Entertainment

8.0

Crew

8.5

Overall

8.3

Food

7.8

Boarding

8.3

Comfort

8.0

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.
United Airlines
7.4
Good
9,094 reviews
China Airlines
8.3
Very good
792 reviews

Entertainment

8.0

Crew

8.5

Overall

8.3

Food

7.8

Boarding

8.3

Comfort

8.0

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 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 26h 10m. 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, China Airlines ($835), United Airlines ($908), and Cathay Pacific ($928) offers the cheapest pricing from Ontario to Hong Kong. Users have found that China Airlines 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 $597). Flying from Ontario to Hong Kong in June is currently the most expensive (average of $896). 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.

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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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$835Average$938FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$908Average$1,218FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$928Average$1,216FlexibilityNo cancel feeOn-time72%

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