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$446+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Hong Kong Intl are usually found in April or March, booked 90 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 3, 2025.

Round-trip from

$816
(iWofly)

One-way from

$446
(Alaska Airlines)

Popular in

July

Cheapest in

April

Average price

$1,535
From Ontario to Hong Kong Intl
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One-way flight from Ontario to Hong Kong Intl
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Highest demand for flights based on searches. 17% potential increase in price ($235 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 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 3, 2025.

This iWofly deal was found by Cheapflights users on 7/3. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:45 amONT - HKG
2 stops24h 45mKorean Air
Tue 12/912:55 amHKG - ONT
2 stops32h 22mKorean Air
Deal found 7/3$816
This Delta deal was found by Cheapflights users on 7/3. 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.
Mon 11/36:00 amONT - HKG
2 stops42h 50mDelta
Tue 11/1812:55 amHKG - ONT
2 stops32h 22mDelta
Deal found 7/3$827
This Gotogate deal was found by Cheapflights users on 7/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:45 amONT - HKG
1 stop17h 30mChina Airlines
Mon 9/111:05 amHKG - ONT
1 stop22h 35mChina Airlines
Deal found 7/2$866
This Gurufare deal was found by Cheapflights users on 7/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:45 pmONT - HKG
1 stop19h 10mSTARLUX Airlines
Sat 9/1311:20 amHKG - ONT
1 stop20h 45mSTARLUX Airlines
Deal found 7/3$920
This FlightHub deal was found by Cheapflights users on 7/2. 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 8/411:45 pmONT - HKG
1 stop19h 20mMultiple Airlines
Thu 9/410:50 pmHKG - ONT
1 stop33h 15mMultiple Airlines
Deal found 7/2$935

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 3, 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

Tue 10/21

6:45 am-10:30 pm

2 stops24h 45m

Hong Kong Intl

Tue 12/9

12:55 am-5:17 pm

2 stops32h 22m

$816

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 11/3

6:00 am-4:50 pm

2 stops42h 50m

Hong Kong Intl

Wed 11/19

6:10 pm-5:17 pm

2 stops39h 07m

$827

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 8/17

12:45 am-9:15 am

1 stop17h 30m

Hong Kong Intl

Mon 9/1

11:05 am-6:40 pm

1 stop22h 35m

$866

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/11

11:45 pm-9:55 am

1 stop19h 10m

Hong Kong Intl

Sat 9/13

11:20 am-5:05 pm

1 stop20h 45m

$920

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/4

11:45 pm-10:05 am

1 stop19h 20m

Hong Kong Intl

Thu 9/4

10:50 pm-5:05 pm

1 stop33h 15m

$935

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 9/2

6:00 am-10:00 pm

2 stops25h 00m

$446

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/4

6:25 am-10:40 am

2 stops37h 15m

$453

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 11/24

6:00 am-11:20 am

2 stops37h 20m

$459

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 10/15

6:45 am-12:40 pm

3 stops38h 55m

$491

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Thu 7/31

12:45 am-9:15 am

1 stop17h 30m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 12 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 June 27, 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 90 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 $978). 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 HKG?

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 3, 2025.

One of the essential ways to save on airfare from Ontario to Hong Kong is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 19% on airfare.

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 3, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, Korean Air, and Japan 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.
STARLUX Airlines
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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
9.1
Wonderful
189 reviews
STARLUX Airlines
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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
1,101 reviews
STARLUX Airlines
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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.
Japan Airlines
8.3
Very good
1,505 reviews
STARLUX Airlines
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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
744 reviews
STARLUX Airlines
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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
9.1
Wonderful
189 reviews

Boarding

9.0

Entertainment

9.0

Comfort

9.0

Food

8.9

Overall

9.1

Crew

9.3

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

    According to our current data, Korean Air ($816), Delta ($827), and China Airlines ($866) offers the cheapest pricing from Ontario to Hong Kong. Users have found that Korean Air is 26% 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 $446 on Alaska Airlines. Other airlines that offer cheap prices include Korean Air from $453 and Delta from $459 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 $978). 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

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$851Average$1,216FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$873Average$975FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$977Average$1,218FlexibilityNo cancel feeOn-time69%

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