Find flights
Insights
When to book
FAQs & Tips
Direct Flights
Airlines
Deals

Find cheap flights from Hong Kong to Ontario from $637

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 9/15. 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
0 bags
Mon 6/3
Mon 6/10

Search 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
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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

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

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

Flights to Ontario - Travel Insights & Trends

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 day to fly to Ontario?

The average price of all flights to Ontario clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Ontario is Sunday where tickets can be as cheap as $1,054. On the other hand, the most expensive day to fly is Thursday, where prices are $1,633 on average.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, 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 to Ontario is April, where tickets cost $793 on average for one-way flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Hong Kong is $1,737 and $1,623 respectively. For return trips, the best month to travel is March with an average price of $1,006.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 days before departure.

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Ontario on KAYAK is from Hong Kong, which takes 12h 40m.

How many direct flights to Ontario are there each day?

There are around 98 direct flights from within Hong Kong to Ontario every day. Most flights depart in the morning, with 5:00 pm the most common departure time and 43% of flights departing in the morning.

How many direct flights to Ontario are there each week?

Each week there are around 685 direct flights from within Hong Kong to Ontario. The most common day for departures is Wednesday, with 18% of flights taking off on this day.

Good to know

Low season

March

High season

June

Cheapest flight

$637
Best time to beat the crowds with an average 18% 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

  • How far is Ontario from central Ontario?

    The distance between Ontario and downtown Ontario is 3 miles.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario (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.

  • Which airline offers the most flights to Ontario?

    Of the 8 airlines that fly to Ontario, Southwest offers the most flights, with around 275 per week, followed by Frontier with 107 flights per week.

See more FAQs

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.

Prefer to fly non-stop to Ontario?

Find which airlines fly direct to Ontario, which days they fly and book direct flights.

Nonstop departures

Hong Kong to Ontario

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights

Nonstop returns

Ontario to Hong Kong

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights
See more direct flights

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.
8.2
China AirlinesOverall score based on 944 reviews
8.1Entertainment
8.6Crew
8.0Comfort
8.3Boarding
7.8Food
Airline reviews

Very good , the weather was terrible, but i admired the professionality and politeness and care from the crew, and the excellent contition of the plane

10.0 Excellentfr Jonah, Apr 2024HKG - TPE
Read more about China Airlines reviews

Very good , the weather was terrible, but i admired the professionality and politeness and care from the crew, and the excellent contition of the plane

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

Liked that I could pick my seat and have a special meal without an extra charge. Luggage is reasonable for overseas trip. What could have been better is boarding and leaving on time.

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Free Wi-Fi could have been better in the Airport.

Ask flight attendant for water during flight and she was a little rude get the water.

Baggage made it successfully to destination despite short layover. Appreciate that.

Staff were good and nice. There should me 3 meals instead of only 2 and snacks.

Book cheap flights from Hong Kong to Ontario

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Ontario found on KAYAK in the last 72 hours.
9/7Sat
1 stopChina Airlines
23h 25mHKG-ONT
9/8Sun
1 stopChina Airlines
18h 20mONT-HKG
$950
9/3Tue
1 stopChina Airlines
17h 05mHKG-ONT
9/25Wed
1 stopChina Airlines
26h 20mONT-HKG
$985
5/16Thu
1 stopChina Airlines
35h 50mHKG-ONT
5/18Sat
1 stopChina Airlines
18h 55mONT-HKG
$1,066
9/3Tue
2 stops
25h 00mHKG-ONT
9/26Thu
2 stops
24h 27mONT-HKG
$1,088
5/14Tue
2 stops
23h 40mHKG-ONT
5/16Thu
2 stops
29h 40mONT-HKG
$1,193
6/26Wed
1 stopUnited Airlines
16h 30mHKG-ONT
9/3Tue
2 stopsUnited Airlines
22h 30mONT-HKG
$1,339
10/10Thu
1 stopUnited Airlines
15h 26mHKG-ONT
10/17Thu
2 stopsUnited Airlines
22h 30mONT-HKG
$1,340
8/13Tue
2 stopsJapan Airlines
19h 49mHKG-ONT
8/22Thu
2 stopsJapan Airlines
25h 00mONT-HKG
$1,356
8/13Tue
2 stopsJapan Airlines
19h 49mHKG-ONT
8/23Fri
2 stopsJapan Airlines
25h 00mONT-HKG
$1,433
6/7Fri
2 stopsDelta
31h 30mHKG-ONT
6/26Wed
2 stopsDelta
26h 05mONT-HKG
$1,782

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Ontario found on KAYAK in the last 72 hours.
9/15Sun
2 stops
24h 15mHKG-ONT
$637
10/12Sat
2 stops
22h 05mHKG-ONT
$647
5/18Sat
1 stopChina Airlines
19h 10mHKG-ONT
$687
5/17Fri
1 stopChina Airlines
19h 10mHKG-ONT
$688
5/30Thu
2 stopsJapan Airlines
19h 46mHKG-ONT
$730
6/24Mon
2 stopsJapan Airlines
19h 49mHKG-ONT
$887
5/21Tue
2 stopsUnited Airlines
29h 10mHKG-ONT
$915
6/20Thu
1 stopUnited Airlines
16h 30mHKG-ONT
$918
6/19Wed
2 stopsAmerican Airlines
35h 49mHKG-ONT
$1,072
6/20Thu
2 stopsAmerican Airlines
32h 37mHKG-ONT
$1,171

Search by stops

Search by airline

Search by price

Last minute flights to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Ontario that are departing in the next 10 days.
5/5Sun
multi-stopChina Airlines
16h 30mHKG-ONT
5/17Fri
multi-stopChina Airlines
18h 55mONT-HKG
$1,077
5/7Tue
multi-stopChina Airlines
16h 30mHKG-ONT
5/18Sat
multi-stopChina Airlines
21h 45mONT-HKG
$1,117
5/9Thu
multi-stopChina Airlines
35h 50mHKG-ONT
5/15Wed
multi-stopChina Airlines
18h 05mONT-HKG
$1,119
5/5Sun
multi-stopChina Airlines
22h 50mHKG-ONT
5/18Sat
multi-stopChina Airlines
18h 05mONT-HKG
$1,128
5/9Thu
multi-stopJapan Airlines
20h 25mHKG-ONT
5/16Thu
multi-stopJapan Airlines
25h 00mONT-HKG
$1,202
5/9Thu
multi-stopJapan Airlines
20h 25mHKG-ONT
5/16Thu
multi-stopJapan Airlines
25h 00mONT-HKG
$1,204
5/5Sun
multi-stop
22h 05mHKG-ONT
5/18Sat
multi-stop
26h 05mONT-HKG
$1,266
5/5Sun
multi-stop
22h 05mHKG-ONT
5/18Sat
multi-stop
26h 05mONT-HKG
$1,275
5/6Mon
multi-stopUnited Airlines
15h 34mHKG-ONT
5/9Thu
multi-stopUnited Airlines
21h 45mONT-HKG
$1,339
5/6Mon
multi-stopUnited Airlines
15h 34mHKG-ONT
5/9Thu
multi-stopUnited Airlines
21h 45mONT-HKG
$1,341

Search by stops

Search by airline

Search by price

Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Hong Kong

Cabin classes: