ONT - HKG

$332 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 4/7. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$638
Overall average: $900
Delta
Tue 2/3Wed 3/11
ONT - HKG • 2 stops
Cheapest one-way
$332
Typical prices: $428-$497
Multiple Airlines
Tue 4/7
ONT - HKG • 2 stops
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 18% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Tue, Feb 3 - Wed, Mar 11
Delta Logo
7:30 am - 11:10 pm
ONT
-
HKG
23h 40m
2 stops
Delta Logo
12:35 pm - 10:33 pm
HKG
-
ONT
24h 58m
2 stops
$638Delta
Sat, Feb 28 - Mon, Mar 23
Delta Logo
3:30 pm - 11:10 pm
ONT
-
HKG
39h 40m
2 stops
Delta Logo
6:10 pm - 10:34 pm
HKG
-
ONT
43h 24m
2 stops
$644Delta
Mon, Feb 2 - Fri, Mar 13
Delta Logo
7:30 am - 11:10 pm
ONT
-
HKG
23h 40m
2 stops
Delta Logo
12:35 pm - 11:50 pm
HKG
-
ONT
26h 15m
2 stops
$688Delta
Fri, Apr 10 - Sat, Apr 25
Korean Air Logo
6:00 am - 10:30 pm
ONT
-
HKG
25h 30m
2 stops
Korean Air Logo
5:55 pm - 5:15 pm
HKG
-
ONT
38h 20m
2 stops
$692Korean Air
Sat, Apr 4 - Sat, Apr 18
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m
1 stop
Multiple Airlines Logo
9:15 am - 5:05 pm
HKG
-
ONT
22h 50m
1 stop
$737Multiple Airlines
Fri, Apr 10 - Sat, Apr 25
Multiple Airlines Logo
11:10 pm - 1:00 pm
ONT
-
HKG
22h 50m
1 stop
Multiple Airlines Logo
1:35 pm - 5:05 pm
HKG
-
ONT
18h 30m
1 stop
$739Multiple Airlines
Wed, Apr 8 - Fri, Apr 17
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m
1 stop
Multiple Airlines Logo
3:45 pm - 5:05 pm
HKG
-
ONT
16h 20m
1 stop
$767Multiple Airlines
Mon, Mar 2 - Thu, Mar 12
Multiple Airlines Logo
9:45 pm - 2:30 pm
ONT
-
HKG
24h 45m
1 stop
Multiple Airlines Logo
6:50 pm - 4:50 pm
HKG
-
ONT
37h 00m
1 stop
$775Multiple Airlines
Mon, Mar 2 - Wed, Mar 18
Multiple Airlines Logo
9:45 pm - 2:30 pm
ONT
-
HKG
24h 45m
1 stop
Multiple Airlines Logo
10:25 am - 4:50 pm
HKG
-
ONT
21h 25m
1 stop
$777Multiple Airlines
Sat, Mar 14 - Sat, Mar 21
Multiple Airlines Logo
10:45 pm - 10:15 am
ONT
-
HKG
20h 30m
1 stop
Multiple Airlines Logo
4:35 pm - 4:50 pm
HKG
-
ONT
15h 15m
1 stop
$794Multiple Airlines
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 $875 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,889 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 2 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$332
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 12% 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 $332 for a one-way ticket and $638 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 $919 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 799 reviews
8.0Comfort
8.0Entertainment
8.5Crew
7.8Food
8.3Boarding
Airline reviews

Flight attendants. Food, entertainment and most of all, be on time.

8.0 ExcellentAnonymous, Dec 2025
PHX - TPE
Read more China Airlines reviews

Flight attendants. Food, entertainment and most of all, be on time.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

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. :)

Flight from Hong Kong to LAX was late, the plane was grubby, overcrowded and hot. I recently flew Starlux and that was a MUCH better experience.

The crew, pilots and flight attendants were all amazing. What could be better is reinforcing that seats cannot be reclined at departure and landing. I had a person seated in front of me who had her seat all the way inclined, including during take-off - after the crew asked her to seat upright. Cathay Pacific should reinforce this safety request and perhaps penalize those who don't follow it. I felt very unsafe with this person limiting my space and perhaps putting my life in danger in the "unlikely" case of an emergency.

Given the Business class airfare, the food variety and quality both were substandard. The crew was not interested to serve other choices and work hard to provide alternatives. Very disappointing food service.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

Great service from crews and delicious dishes, snacks and drinks. Egg tarts and local dimsum are delicious.

The experience was efficient, on time, and provided great service.

one hour transit not good. cathay pacific is not helpful at all

Trip was fine. My only complaint was that when the passenger in front of me reclined her seat (which was, in essence, the whole flight except landing and take-off,) it was uncomfortably claustrophobic for me and very difficult for my husband to get in and out of his window seat. Also uncomfortable to watch the entertainment because the screen was right in your face.

The flight was just ok, but the vendor made it exceptio ally bard to manage my own reservation and would not give me access. The blocked all of the one time pins to come to their email address which caused me.to go through them eceryrime to get seats see rhe reservation and even get wheelchair access for my sick 71 year old uncle. They only xommunicates via a bot which gave me incorrect info. I thought this was Kayak and not underprivileged. They ruined his trip, did not get him aisle seats and made it impossible to purchase extra leg room. It was a horrible experience. He was taken to hospital on arrival only to find he had blood clots and pnemonia while trying to navigate the airport. This vendor is very irresponsible and the airline could not access his info.

There were delays at boarding and landing. These events resulted in a tight transfer time in HK. Poor signage for transfers. Finally, lost luggage at final destination.

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

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.

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

Information on your arrival and departure airports