ONT - HKG

$411 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 2/18. 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

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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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

Fri, Feb 13 - Thu, Feb 26
Delta Logo
6:45 am - 11:10 pmONT-HKG
24h 25m2 stops
Delta Logo
12:35 pm - 10:38 pmHKG-ONT
26h 03m2 stops
$778Delta
Find Deal
Fri, Mar 13 - Sat, Mar 28
Korean Air Logo
6:45 am - 11:20 amONT-HKG
37h 35m2 stops
Korean Air Logo
6:10 pm - 10:38 pmHKG-ONT
43h 28m2 stops
$782Korean Air
Find Deal
Fri, Nov 7 - Fri, Nov 21
Multiple Airlines Logo
9:45 pm - 9:35 pmONT-HKG
31h 50m1 stop
Multiple Airlines Logo
1:40 pm - 4:30 pmHKG-ONT
18h 50m1 stop
$806Multiple Airlines
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Sat, Nov 8 - Fri, Nov 21
Multiple Airlines Logo
9:45 pm - 9:25 pmONT-HKG
31h 40m1 stop
Multiple Airlines Logo
4:35 pm - 4:30 pmHKG-ONT
15h 55m1 stop
$809Multiple Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 27
Multiple Airlines Logo
9:45 pm - 1:00 pmONT-HKG
23h 15m1 stop
Multiple Airlines Logo
10:25 am - 4:30 pmHKG-ONT
22h 05m1 stop
$810Multiple Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 17
Multiple Airlines Logo
9:45 pm - 10:20 pmONT-HKG
32h 35m1 stop
Multiple Airlines Logo
2:00 pm - 4:30 pmHKG-ONT
18h 30m1 stop
$811Multiple Airlines
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Mon, Oct 27 - Tue, Nov 18
Multiple Airlines Logo
10:45 pm - 10:30 amONT-HKG
20h 45m1 stop
Multiple Airlines Logo
10:55 pm - 4:30 pmHKG-ONT
33h 35m1 stop
$817Multiple Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 24
Multiple Airlines Logo
10:45 pm - 10:30 amONT-HKG
20h 45m1 stop
Multiple Airlines Logo
4:35 pm - 4:30 pmHKG-ONT
15h 55m1 stop
$818Multiple Airlines
Find Deal
Mon, Oct 27 - Wed, Oct 29
China Airlines Logo
11:50 pm - 1:00 pmONT-HKG
22h 10m1 stop
China Airlines Logo
5:35 pm - 5:50 pmHKG-ONT
15h 15m1 stop
$832China Airlines
Find Deal
Fri, Mar 13 - Sat, Mar 28
China Airlines Logo
11:50 pm - 10:10 amONT-HKG
19h 20m1 stop
China Airlines Logo
2:05 pm - 5:50 pmHKG-ONT
18h 45m1 stop
$841China Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $778 (round-trip)
China Airlines
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 19% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$778
Typical prices: $921-$991
Delta
Fri 2/13Thu 2/26
ONT - HKG • 2 stops
Cheapest one-way
$411
Korean Air
Wed 2/18
ONT - HKG • 2 stops
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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!
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.

How much is a round-trip flight from Ontario to Hong Kong?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Hong Kong departing in February.

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 $1,642 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 4 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$411
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 11% 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 $411 for a one-way ticket and $778 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 $941 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 768 reviews
8.5Crew
8.0Comfort
8.0Entertainment
7.8Food
8.3Boarding
Airline reviews

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

10.0 ExcellentAnonymous, Aug 2025SEA - TPE
Read more China Airlines reviews

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!

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

They downgraded me from premium economy to regular economy and me had 2 major lay over and had to have an emergency landing due to engine failure mid flight Don’t use them worst experience I have ever had still dealing with the trauma

Seats in the absolute back row of the plane even though we booked ages ago :( Crew was awesome though

The only problem was my connecting flight to Chiang Mai on Hong Kong express that I booked through Cathay Pacific was canceled and I was never told about it. I was rescheduled on a flight 10 hours later. Very long day at rgr airport in Hing Kong after a 13 hour flight but that's OK, I understand things change but I think I should have been told. I would have prepared myself for a long wait. Great flights all around though. Thank you

Overall pretty good experience. It would be nice to have caught the attendants even they were flying down the aisle with snacks, and if they could cater to multiple dietary restrictions (bland and no lactose. The customer service chat is a bad experience), but otherwise no complaints.

There was a flight attendant named Angela who took care of me because I injured my foot badly right before the flight. Because of the service she provided I will always fly Cathay.

I am Vegetarian also has Gluten free food. However they gave me chicken and fish which is gluten free, but i am a vegetrain and i requested crew Hindu meal vegetarian, they said they will come back. .but they never showed up even i asked 2nd time. They could have compensate. I also request airline industry to have another option Gluten Free for Vegetarin people as well. Because Vegetarin people will have gluen issue...

they are deley vancouver to hankong 3 hour after honkong 20 hour stay there honkong not visa approved and they cant help to visa so we are stay in airport 20 hour even honkong staf very bad person they cant do for us 6 hour we arround they said you there you go there waste time next time i dont want to go cathay stay in honkong

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

The economy seats are incredibly tight. A large percent of the traveling public will not fit. I will not fly Cathay again because of this. You are literally squeezing passengers for profit. The CEO should fly some economy flights.

it was a great experience as far as business class.. but I have had better meals and wine on other airlines.. that said.. the price was a great value for what I got in return.. crew made the difference.

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.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

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

Information on your arrival and departure airports

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