$472 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 6/3. 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
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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

Tue, Jun 2 - Sat, Aug 1
STARLUX Airlines Logo
8:10 pm - 5:05 pm
HKG
-
ONT
35h 55m
1 stop
STARLUX Airlines Logo
11:45 pm - 6:55 pm
ONT
-
HKG
28h 10m
1 stop
$787STARLUX Airlines
Thu, Sep 10 - Mon, Sep 14
STARLUX Airlines Logo
8:10 pm - 5:05 pm
HKG
-
ONT
35h 55m
1 stop
STARLUX Airlines Logo
11:10 pm - 9:55 am
ONT
-
HKG
19h 45m
1 stop
$834STARLUX Airlines
Fri, May 8 - Mon, Nov 16
STARLUX Airlines Logo
8:10 pm - 5:05 pm
HKG
-
ONT
35h 55m
1 stop
STARLUX Airlines Logo
9:45 pm - 6:30 pm
ONT
-
HKG
28h 45m
1 stop
$839STARLUX Airlines
Sat, May 2 - Sun, May 3
United Airlines Logo
11:45 am - 8:36 pm
HKG
-
ONT
23h 51m
2 stops
United Airlines Logo
1:30 pm - 5:00 am
ONT
-
HKG
24h 30m
1 stop
$858United Airlines
Sun, Jun 21 - Sat, Jul 4
STARLUX Airlines Logo
8:10 pm - 5:05 pm
HKG
-
ONT
35h 55m
1 stop
STARLUX Airlines Logo
11:45 pm - 9:55 am
ONT
-
HKG
19h 10m
1 stop
$886STARLUX Airlines
Wed, Jun 10 - Wed, Jul 8
STARLUX Airlines Logo
11:20 am - 5:05 pm
HKG
-
ONT
20h 45m
1 stop
STARLUX Airlines Logo
11:45 pm - 9:55 am
ONT
-
HKG
19h 10m
1 stop
$892STARLUX Airlines
Sat, Jun 13 - Sat, Aug 1
Multiple Airlines Logo
1:35 pm - 5:05 pm
HKG
-
ONT
18h 30m
1 stop
Multiple Airlines Logo
11:45 pm - 6:55 pm
ONT
-
HKG
28h 10m
1 stop
$895Multiple Airlines
Thu, Apr 23 - Tue, May 5
China Airlines Logo
5:35 pm - 6:00 pm
HKG
-
ONT
15h 25m
1 stop
China Airlines Logo
12:10 am - 9:15 am
ONT
-
HKG
18h 05m
1 stop
$912China Airlines
Fri, May 22 - Wed, Jun 3
STARLUX Airlines Logo
11:20 am - 5:05 pm
HKG
-
ONT
20h 45m
1 stop
STARLUX Airlines Logo
11:10 pm - 9:55 am
ONT
-
HKG
19h 45m
1 stop
$913STARLUX Airlines
Thu, May 21 - Wed, Jun 17
China Airlines Logo
8:10 pm - 6:00 pm
HKG
-
ONT
36h 50m
1 stop
China Airlines Logo
12:10 am - 4:30 pm
ONT
-
HKG
25h 20m
1 stop
$919China Airlines
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 flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Ontario was found on the route from Hong Kong, at $787 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $168 in the last 3 days.

Find deals

Good to know

Low seasonNovember
Cheapest flight$472
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Hong Kong to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from Hong Kong, at $787 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $168 in the last 3 days.

  • 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.

  • 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 856 direct flights from within Hong Kong to Ontario. The most common day for departures is Monday, with 15% 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 817 reviews
8.0Entertainment
8.5Crew
8.3Boarding
7.8Food
8.0Comfort
Airline reviews

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

6.0 GoodJeff, Mar 2026
YVR - TPE
Read more China Airlines reviews

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

The crew are amazing. Very professional, polite, kind, and accommodating.

The crew was very professional and friendly. Although there was a water leak from panel above, the crew was trying to mitigate the consequence. We are happy with its service and the value offered. We will definitely take China Airlines again.

Well, we upgraded and on a 14 hour flight not sure how we would tolerate it otherwise. The upgrades are ridiculously expensive and even with empty seats even in first class it was difficult to upgrade. Probably won’t fly China Air again due to this. The attendants tho were much better than the airlines in the states and there attentiveness and care for your comfort far exceeds other airlines in the states.

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.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

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.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)