HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Hong Kong

$469+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKG
Jun 19 — Jun 261
Thu 6/19
Thu 6/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Hong Kong with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Hong Kong 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

Keep the following information in mind while searching for Ontario to Hong Kong flight deals. Data was last updated June 14, 2025.

Round-trip from

$874
(oojo)

One-way from

$469
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$1,520
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 ($249 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 14, 2025.

This Delta deal was found by Cheapflights users on 6/14. 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 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 6/14$849
This Korean Air deal was found by Cheapflights users on 6/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:45 amONT - HKG
2 stops36h 55mKorean Air
Wed 10/296:10 pmHKG - ONT
2 stops43h 32mKorean Air
Deal found 6/13$852
This CrystalTravel deal was found by Cheapflights users on 6/12. 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.
Mon 10/612:10 amONT - HKG
1 stop18h 55mChina Airlines
Tue 10/282:05 pmHKG - ONT
1 stop18h 45mChina Airlines
Deal found 6/12$868
This oojo deal was found by Cheapflights users on 6/12. 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 9/111:10 pmONT - HKG
1 stop28h 45mSTARLUX Airlines
Wed 9/1011:20 amHKG - ONT
1 stop20h 45mSTARLUX Airlines
Deal found 6/12$885
This Booking.com deal was found by Cheapflights users on 6/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:10 pmONT - HKG
1 stop19h 45mMultiple Airlines
Mon 10/279:05 amHKG - ONT
2 stops22h 45mMultiple Airlines
Deal found 6/12$945
This United Airlines deal was found by Cheapflights users on 6/12. 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 11/185:40 amONT - HKG
2 stops33h 05mUnited Airlines
Thu 11/2010:30 pmHKG - ONT
1 stop16h 15mUnited Airlines
Deal found 6/12$1,068
This oojo deal was found by Cheapflights users on 6/13. 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.
Mon 9/297:22 pmONT - HKG
2 stops22h 28mEVA Air
Sat 11/157:40 pmHKG - ONT
2 stops31h 04mEVA Air
Deal found 6/13$1,101

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 June 14, 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

Sun 9/7

12:45 am-4:30 pm

1 stop24h 45m

Hong Kong Intl

Wed 9/10

2:00 pm-6:40 pm

1 stop19h 40m

$874

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/4

6:25 am-10:30 pm

2 stops25h 05m

Hong Kong Intl

Wed 9/3

12:45 am-5:11 pm

2 stops31h 26m

$875

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 9/10

11:10 pm-6:55 pm

1 stop28h 45m

Hong Kong Intl

Sat 10/4

11:20 am-5:05 pm

1 stop20h 45m

$883

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 7/28

6:25 am-10:30 pm

2 stops25h 05m

Hong Kong Intl

Thu 8/21

12:20 pm-10:42 pm

2 stops25h 22m

$884

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 9/8

11:10 pm-9:55 am

1 stop19h 45m

Hong Kong Intl

Wed 9/10

3:45 pm-5:05 pm

1 stop16h 20m

$954

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 8/4

6:39 pm-5:00 am

1 stop19h 21m

Hong Kong Intl

Mon 8/18

11:15 am-12:14 pm

1 stop15h 59m

$1,072

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 9/6

3:04 pm-10:00 pm

2 stops39h 56m

Hong Kong Intl

Mon 11/17

10:20 am-3:14 pm

2 stops20h 54m

$1,225

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 8/12

6:00 am-12:40 pm

3 stops39h 40m

$469

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Thu 7/10

6:25 am-10:30 pm

2 stops25h 05m

$493

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Thu 8/7

6:25 am-10:30 pm

2 stops25h 05m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 16 results
1
2

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 9, 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, March is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $989). 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 June 14, 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.

Rainfall in Hong Kong by month

Plan your trip to Hong Kong by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hong Kong ranges from 0.8 - 15.4 inches per month. June is typically the wettest month, when rainfall can reach 15.4 in. January is typically the driest time to visit Hong Kong when rainfall is around 0.8 in.

Temperature in Hong Kong by month

Plan your trip to Hong Kong by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hong Kong, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

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 June 14, 2025.
Read through reviews of airlines operating flights from Ontario to Hong Kong, such as STARLUX Airlines, EVA Air and Korean Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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.
EVA Air
8.4
Very good
1,204 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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
1,091 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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
1,494 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

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, China Airlines ($874), Korean Air ($875), and STARLUX Airlines ($883) 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.

  • 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 $493 on Korean Air. Other airlines that offer cheap prices include Delta from $494 and STARLUX Airlines from $498 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, March is the cheapest month in which you can book a flight from Ontario to Hong Kong (average of $989). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Hong Kong

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
Los Angeles to Narita flights
San Francisco to Haneda flights
San Francisco to Narita flights
Los Angeles to Manila flights
Los Angeles to Suvarnabhumi flights
San Francisco to Manila flights
San Francisco to New Delhi flights
Los Angeles to Incheon Intl flights
Ontario to Narita flights
Los Angeles to Taiwan Taoyuan Intl flights
San Francisco to Hong Kong flights
San Francisco to Ho Chi Minh City flights
San Francisco to Taiwan Taoyuan Intl flights
San Francisco to Suvarnabhumi flights
Ontario to Haneda flights
San Diego to Narita flights
Los Angeles to Ho Chi Minh City flights
San Francisco to Mumbai flights
Los Angeles to Hong Kong flights
Los Angeles to Kansai Intl flights
Ontario to Suvarnabhumi flights
Ontario to Manila flights
San Francisco to Hongqiao Intl flights
San Francisco to Incheon Intl flights
San Francisco to Bangalore flights
Los Angeles to Hongqiao Intl flights
Los Angeles to Gimpo Intl flights
Los Angeles to Sung Shan flights
San Francisco to Hyderabad flights
San Francisco to Singapore flights
San Francisco to Pu Dong flights
Burbank to Narita flights
San Diego to Haneda flights
Los Angeles to Singapore flights
Santa Ana to Suvarnabhumi flights
Ontario to Taiwan Taoyuan Intl flights
Los Angeles to Pu Dong flights
San Francisco to Capital flights
Burbank to Manila flights
San Jose to New Delhi flights
Burbank to Suvarnabhumi flights
San Jose to Manila flights
Los Angeles to Denpasar flights
San Francisco to Kansai Intl flights
San Francisco to Sung Shan flights
Oakland to New Delhi flights
San Jose to Narita flights
Los Angeles to Kuala Lumpur Intl flights
Santa Ana to Manila flights

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 June 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$851Average$1,216FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$873Average$980FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$977Average$1,218FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.