ONT - HKG

$446 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 10/1. 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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Flights 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

Tue, Oct 21 - Tue, Dec 9
Korean Air Logo
6:45 am - 10:30 pmONT-HKG
24h 45m2 stops
Korean Air Logo
12:55 am - 5:17 pmHKG-ONT
32h 22m2 stops
$816Korean Air
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Tue, Oct 21 - Tue, Dec 9
Korean Air Logo
6:45 am - 10:40 amONT-HKG
36h 55m2 stops
Korean Air Logo
12:55 am - 5:17 pmHKG-ONT
32h 22m2 stops
$817Korean Air
Find Deal
Mon, Nov 3 - Tue, Nov 18
Delta Logo
6:00 am - 4:50 pmONT-HKG
42h 50m2 stops
Delta Logo
12:55 am - 10:42 pmHKG-ONT
37h 47m2 stops
$827Delta
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Mon, Aug 4 - Thu, Sep 4
Delta Logo
6:25 am - 4:20 pmONT-HKG
42h 55m2 stops
Delta Logo
12:20 pm - 10:42 pmHKG-ONT
25h 22m2 stops
$828Delta
Find Deal
Sun, Aug 17 - Mon, Sep 1
China Airlines Logo
12:45 am - 1:00 pmONT-HKG
21h 15m1 stop
China Airlines Logo
2:00 pm - 6:40 pmHKG-ONT
19h 40m1 stop
$868China Airlines
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Wed, Nov 26 - Wed, Dec 10
China Airlines Logo
10:45 pm - 7:00 pmONT-HKG
28h 15m1 stop
China Airlines Logo
5:35 pm - 4:50 pmHKG-ONT
15h 15m1 stop
$872China Airlines
Find Deal
Wed, Oct 22 - Sat, Nov 8
 Logo
11:10 pm - 8:40 pmONT-HKG
30h 30m1 stop
 Logo
1:00 pm - 3:50 pmHKG-ONT
18h 50m1 stop
Tue, Oct 7 - Tue, Dec 9
Alaska Airlines Logo
1:31 pm - 10:00 pmONT-HKG
41h 29m2 stops
Alaska Airlines Logo
10:20 am - 6:17 pmHKG-ONT
23h 57m2 stops
$950Alaska Airlines
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Sun, Aug 31 - Sun, Sep 14
Alaska Airlines Logo
7:22 pm - 10:00 pmONT-HKG
35h 38m2 stops
Alaska Airlines Logo
3:15 pm - 12:03 amHKG-ONT
47h 48m2 stops
$958Alaska Airlines
Find Deal
Sat, Aug 16 - Sat, Aug 23
 Logo
11:45 pm - 10:05 amONT-HKG
19h 20m1 stop
 Logo
3:45 pm - 5:40 pmHKG-ONT
16h 55m1 stop
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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 April, where tickets cost $940 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,535 and $1,520 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. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonDecember
High seasonOctober
Cheapest flight$446
Best time to beat the crowds but there is an average 34% increase 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 $446 for a one-way ticket and $816 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, and SkyTeam are the airline alliances operating flights between Ontario and Hong Kong, with SkyTeam 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.

  • 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 747 reviews
8.0Comfort
8.3Boarding
7.8Food
8.0Entertainment
8.5Crew
Airline reviews

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!

2.0 Mediocrelinzy, Jun 2025TPE - CGK
Read more China Airlines reviews

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. :)

Staff was so nice and very helpful with directions aswell!

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

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

The only problem I had was not being able to download my boarding passes prior to arriving at the airport. Everything else was perfect.

If I had blood clots, that window seat would've killed me for certain.

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

Flight was delayed at the last minute for six hours. Instead of delaying it to a normal hour, they moved it to 10 pm to essentially make it a redeye. There was no compensation or benefit offered for this inconvenience. Once on the plane, Inpaid for WiFi twice with both times it not working because of a “weak WiFi signal”, according to the flight attendants. They also chose the farther possible gates in both airports from the entrance/exit, even though they were one of the few active flights left so late in the evening. Overall it was pretty horrible.

I had high expectations but met with a below average experience. I hope the Airline will take a notice and improve.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

So so, crew was overly professional and lacks human touch. Equipment is very old, especially the HKG-PVG CX366 flight. That plane along with its decor must have twenty years of history, or at least I had that impression.

Worst experience I have ever had with any airline in over 25 years.

very professional and very attentive to my Special Needs as I required a Wheel Chair and assistance to board

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

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

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