ONT - HKG

$365 Find Cheap Flights from Ontario to Hong Kong

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Hong Kong departing on 1/13. 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 Hong Kong

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hong Kong, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hong Kong, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$705
Overall average: $944
Korean Air
Wed 3/18Sat 3/21
ONT - HKG • 2 stops
Cheapest one-way
$365
Typical prices: $444-$502
Delta
Tue 1/13
ONT - HKG • 2 stops
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 20% price drop
November
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 Hong Kong!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Hong Kong (ONT-HKG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Hong Kong 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 Ontario to Hong Kong

Wed, Mar 18 - Sat, Mar 21
Korean Air Logo
6:00 am - 4:50 pmONT-HKG
43h 50m2 stops
Korean Air Logo
12:35 pm - 5:13 pmHKG-ONT
43h 38m2 stops
$705Korean Air
Find Deal
Thu, Jan 22 - Mon, Jan 26
Delta Logo
3:30 pm - 11:20 amONT-HKG
51h 50m2 stops
Delta Logo
6:10 pm - 10:51 pmHKG-ONT
44h 41m2 stops
$712Delta
Find Deal
Thu, Jan 29 - Sun, Feb 8
Delta Logo
7:30 am - 11:10 pmONT-HKG
23h 40m2 stops
Delta Logo
12:55 am - 10:44 pmHKG-ONT
37h 49m2 stops
$730Delta
Find Deal
Fri, Jan 30 - Wed, Feb 11
Delta Logo
7:30 am - 11:10 pmONT-HKG
23h 40m2 stops
Delta Logo
12:35 pm - 10:44 pmHKG-ONT
26h 09m2 stops
$732Delta
Find Deal
Mon, Apr 27 - Mon, Jul 27
Korean Air Logo
7:00 am - 10:30 pmONT-HKG
24h 30m2 stops
Korean Air Logo
12:45 am - 5:16 pmHKG-ONT
31h 31m2 stops
$733Korean Air
Find Deal
Fri, Jan 30 - Sat, Feb 14
Delta Logo
7:30 am - 11:10 pmONT-HKG
23h 40m2 stops
Delta Logo
12:35 pm - 10:37 pmHKG-ONT
26h 02m2 stops
$734Delta
Find Deal
Fri, Mar 13 - Sat, Mar 28
Korean Air Logo
6:00 am - 11:20 amONT-HKG
38h 20m2 stops
Korean Air Logo
6:10 pm - 5:13 pmHKG-ONT
38h 03m2 stops
$735Korean Air
Find Deal
Fri, Apr 10 - Fri, Apr 24
Korean Air Logo
6:00 am - 10:30 pmONT-HKG
25h 30m2 stops
Korean Air Logo
12:45 am - 5:16 pmHKG-ONT
31h 31m2 stops
$737Korean Air
Find Deal
Fri, Mar 13 - Sat, Mar 28
Multiple Airlines Logo
10:45 pm - 2:00 pmONT-HKG
24h 15m1 stop
Multiple Airlines Logo
9:05 am - 4:50 pmHKG-ONT
22h 45m1 stop
$781Multiple Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19
Multiple Airlines Logo
9:45 pm - 10:30 amONT-HKG
20h 45m1 stop
Multiple Airlines Logo
4:35 pm - 3:50 pmHKG-ONT
15h 15m1 stop
$805Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Hong Kong flights

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

What is the cheapest month to fly from Ontario to Hong Kong?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Hong Kong, 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 from Ontario to Hong Kong is August, where tickets cost $858 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,789 and $1,516 respectively.

How far in advance should I book a flight from Ontario to Hong Kong?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Hong Kong, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Hong Kong, you should book around 5 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$365
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Ontario to Hong Kong

When to book flights from Ontario to Hong Kong

Are your dates flexible? Find out the best times to travel from Ontario to Hong Kong based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Hong Kong

  • What is the cheapest flight from Ontario to Hong Kong?

    In the last 3 days, the lowest price for a flight from Ontario to Hong Kong was $365 for a one-way ticket and $705 for a round-trip.

  • Do I need a passport to fly between Ontario and Hong Kong?

    Yes

  • Which aircraft models fly most regularly from Ontario to Hong Kong?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Hong Kong?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Hong Kong, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Hong Kong from Ontario?

    Taipei City is the most popular layover city among KAYAK users traveling from Ontario to Hong Kong.

  • Which is the best airline for flights from Ontario to Hong Kong, China Airlines or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Ontario to Hong Kong are China Airlines and Cathay Pacific. With an average price for the route of $938 and an overall rating of 8.3, China Airlines is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,216 and an overall rating of 7.6.

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

    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 from Ontario to Hong Kong.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hong Kong from 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 from Ontario to Hong Kong?

    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 Hong Kong with an airline and back to Ontario with another airline. Booking your flights between Ontario and HKG can sometimes prove cheaper using this method.

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

    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 Hong Kong from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Ontario to Hong Kong

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Hong Kong. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Hong Kong? 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 783 reviews
7.8Food
8.6Crew
8.0Entertainment
8.0Comfort
8.3Boarding
Airline reviews

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

8.0 ExcellentAnonymous, Oct 2025SEA - TPE
Read more China Airlines reviews

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.

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

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. :)

Most relaxing long distance flight I have been on. And I have flown on many.

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

The morning in Hong Kong was ridiculous. Very chaotic. The flight was delayed. Missed connecting flights. Kathy should be more competent in getting the planes ready ahead of time so that flights can depart on time.. totally ridiculous and unnecessary. Very poor performance.

Flew from lax economy on cathay 777. Seat configuration 3-4-3. When the forward seat reclines it feels like someone is leaning forward and staring you. If you are slightly big tray tables will touch your abdomen even with seats upright. AVOID this above 777 configuration at all cost for a long flight. However their Airbus 350 3-3-3 configuration felt spacious and Seats wider.

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

Well- trained, cheerful onboard staff. Business class seating and storage were excellent. Outstanding range of food choices, though quality ranged from just OK (seasonal rice and beef dish) to outstanding ( congee and soup noodles with beef brisket). But what can you expect; it's on a plane. I couldn't figure out the remote control, but touch screen worked well. My wife and I (in our 60s), didnt find much to watch from the Entertainment choices. We mostly watched the flight maps. The bedding did the job but is unwieldy and ends up in a clump, with one-third falling on the floor.

First time tying out business class with this airline, hat a disappointment, never returning. We didn’t get the meal as requested from Singapore to HKG flight. While meals served connecting flight, crew takes meal order based off passenger membership status by giving the. Priority selection of meals. It was a battle, plain disappointment, not worth the hype, price, class as categorized/ advertised

Very friendly and accommodating staff. Food was great. Lots of movies and tv shows to choose from. Highly recommend.

Leg room wasn't that great. Other than that it was a good flight

Close to excellent. The only problem is when I try to charge my phone on the USB in front of my seat, the battery level is decreasing rather than increasing. Why?

If my return flight was not so much better, I would have given an excellent review.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Everything you need to know for your flight from Ontario to Hong Kong

Information on your arrival and departure airports