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$424+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Hong Kong are usually found in April or March, booked 20 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 July 31, 2025.

Round-trip from

$786
(Expedia)

One-way from

$424
(iWofly)

Popular in

June

Cheapest in

April

Average price

$1,236
From Ontario to Hong Kong
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One-way flight from Ontario to Hong Kong
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Highest demand for flights based on searches. 12% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Expedia deal was found by Cheapflights users on 7/30. 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 8/186:00 amONT - HKG
2 stops25h 30mKorean Air
Wed 9/1712:45 amHKG - ONT
2 stops31h 15mKorean Air
Deal found 7/30$786
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 11/256:43 amONT - HKG
2 stops24h 27mDelta
Thu 12/1112:35 pmHKG - ONT
2 stops26h 07mDelta
Deal found 7/29$789
This oojo deal was found by Cheapflights users on 7/31. 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 10/512:10 amONT - HKG
1 stop25h 20mChina Airlines
Wed 10/82:00 pmHKG - ONT
1 stop19h 00mChina Airlines
Deal found 7/31$855
This CrystalTravel deal was found by Cheapflights users on 7/31. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:10 pmONT - HKG
1 stop28h 45mSTARLUX Airlines
Mon 10/2011:20 amHKG - ONT
1 stop20h 45mSTARLUX Airlines
Deal found 7/31$863
This oojo deal was found by Cheapflights users on 7/30. 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 10/611:10 pmONT - HKG
1 stop19h 45mMultiple Airlines
Wed 10/812:55 pmHKG - ONT
1 stop19h 10mMultiple Airlines
Deal found 7/30$891

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 31, 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

Mon 8/18

6:00 am-10:30 pm

2 stops25h 30m

Hong Kong Intl

Wed 9/17

12:45 am-5:00 pm

2 stops31h 15m

$786

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 11/25

6:43 am-11:10 pm

2 stops24h 27m

Hong Kong Intl

Tue 12/9

12:55 am-5:17 pm

2 stops32h 22m

$789

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 1/20

10:50 pm-9:15 am

1 stop18h 25m

Hong Kong Intl

Mon 1/26

5:35 pm-4:50 pm

1 stop15h 15m

$844

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 9/26

11:10 pm-6:55 pm

1 stop28h 45m

Hong Kong Intl

Mon 10/20

11:20 am-5:05 pm

1 stop20h 45m

$863

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 10/6

11:10 pm-9:55 am

1 stop19h 45m

Hong Kong Intl

Wed 10/8

12:55 pm-5:05 pm

1 stop19h 10m

$891

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/18

6:00 am-10:40 am

2 stops37h 40m

$424

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/18

6:05 am-10:30 pm

2 stops25h 25m

$436

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 12/8

6:00 am-10:45 pm

2 stops24h 45m

$446

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/18

6:00 am-12:40 pm

3 stops39h 40m

$466

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 1/19

10:50 pm-10:10 am

1 stop19h 20m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results
1
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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 July 25, 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 $960). 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 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 July 31, 2025.

It’s optimal to fly from Ontario to Hong Kong in the afternoon. By choosing this option you can save up to 19% 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 July 31, 2025.
Read through reviews of airlines operating flights from Ontario to Hong Kong, such as STARLUX Airlines, Korean Air, and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,121 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
754 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Alaska Airlines
8.0
Very good
10,000 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Delta
8.0
Very good
7,981 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Overall

9.0

Boarding

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

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

    According to our current data, Korean Air ($786), Delta ($789), and China Airlines ($844) offers the cheapest pricing from Ontario to Hong Kong. Users have found that Korean Air is 27% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Hong Kong one-way?

    One-way options have recently been found by users for as low as $424 on Korean Air. Other airlines that offer cheap prices include Delta from $436 and Alaska Airlines from $446 one-way.

  • 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 $960). 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$851Average$1,216FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$872Average$971FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$977Average$1,218FlexibilityNo cancel feeOn-time69%

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