$431 Find Cheap Flights from Hong Kong to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 2/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$623
Overall average: $856
United Airlines
Mon 2/9Thu 2/12
HKG - ONT • 1 stop
Cheapest one-way
$427
Typical prices: $466-$612
STARLUX Airlines
Sat 2/21
HKG - ONT • 1 stop
When to travel
March
Cheapest • 17% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hong Kong to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hong Kong to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hong Kong to Ontario

Mon, Feb 9 - Thu, Feb 12
United Airlines Logo
10:30 pm - 5:43 pmHKG-ONT
35h 13m1 stop
United Airlines Logo
5:00 am - 7:20 pmONT-HKG
46h 20m2 stops
$623United Airlines
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Sat, Feb 7 - Fri, Feb 20
United Airlines Logo
10:35 am - 8:58 pmHKG-ONT
26h 23m2 stops
United Airlines Logo
6:00 am - 7:20 pmONT-HKG
21h 20m1 stop
$624United Airlines
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Mon, Dec 1 - Mon, Dec 8
STARLUX Airlines Logo
11:15 am - 3:50 pmHKG-ONT
20h 35m1 stop
STARLUX Airlines Logo
9:45 pm - 6:30 pmONT-HKG
28h 45m1 stop
$682STARLUX Airlines
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Wed, Apr 8 - Sat, Apr 11
China Airlines Logo
5:30 pm - 6:00 pmHKG-ONT
15h 30m1 stop
China Airlines Logo
12:10 am - 1:00 pmONT-HKG
21h 50m1 stop
$712China Airlines
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Sat, Feb 7 - Sat, Feb 21
United Airlines Logo
10:30 pm - 10:53 pmHKG-ONT
16h 23m1 stop
United Airlines Logo
1:45 pm - 7:20 pmONT-HKG
37h 35m2 stops
$724United Airlines
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Mon, Feb 9 - Thu, Feb 12
China Airlines Logo
5:35 pm - 4:50 pmHKG-ONT
15h 15m1 stop
China Airlines Logo
10:50 pm - 4:35 pmONT-HKG
25h 45m1 stop
$769China Airlines
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Mon, Feb 9 - Thu, Feb 12
China Airlines Logo
11:10 am - 4:50 pmHKG-ONT
21h 40m1 stop
China Airlines Logo
10:50 pm - 8:10 pmONT-HKG
29h 20m1 stop
$770China Airlines
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Tue, Apr 7 - Thu, Apr 16
China Airlines Logo
5:30 pm - 6:00 pmHKG-ONT
15h 30m1 stop
China Airlines Logo
12:10 am - 10:05 amONT-HKG
18h 55m1 stop
$816China Airlines
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Thu, Dec 25 - Wed, Jan 7
STARLUX Airlines Logo
7:45 pm - 3:50 pmHKG-ONT
36h 05m1 stop
STARLUX Airlines Logo
9:45 pm - 10:10 amONT-HKG
20h 25m1 stop
$835STARLUX Airlines
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Tue, Apr 7 - Sun, Apr 12
China Airlines Logo
5:30 pm - 6:00 pmHKG-ONT
15h 30m1 stop
China Airlines Logo
12:10 am - 9:15 amONT-HKG
18h 05m1 stop
$865China Airlines
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Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ontario is March, where tickets cost $780 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Hong Kong is $1,168 and $1,127 respectively. For return trips, the best month to travel is March with an average price of $780.

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Good to know

Low seasonAugust
Cheapest flight$427
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Hong Kong to Ontario

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    The distance between Ontario Airport and downtown Ontario is 3 miles.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario Airport (ONT). It can also be referred to as Ontario or Ontario Intl.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Wednesday where tickets can be as cheap as $1,088. On the other hand, the most expensive day to fly is Monday, where prices are $1,150 on average.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Ontario are there each week?

    Each week there are around 839 direct flights from within Hong Kong to Ontario. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top airline flying from Hong Kong to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Hong Kong to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
China AirlinesOverall score based on 782 reviews
8.3Boarding
8.0Entertainment
8.6Crew
8.0Comfort
7.8Food
Airline reviews

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

10.0 ExcellentLong, Oct 2025TPE - SGN
Read more China Airlines reviews

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Better organization of boarding procedures. Terrible leadership guiding people to gates.

They need to improve on how the plane lands cause it was not smooth at all.

I did not like how the plane landed. It was not smooth.

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

Staff was so nice and very helpful with directions aswell!

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)