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Cheap flights from Ontario to Hong Kong from $418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Hong Kong departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Hong Kong

Cheap round-trip flights

Delta Logo
6:00 am - 11:20 amONT-HKG
37h 20m2 stops
Delta Logo
12:35 pm - 6:18 pmHKG-ONT
21h 43m2 stops
$722Delta
Find Deal
Mon, Nov 24 - Thu, Nov 27
Korean Air Logo
7:35 am - 10:30 pmONT-HKG
23h 55m2 stops
Korean Air Logo
12:55 am - 5:07 pmHKG-ONT
32h 12m2 stops
$726Korean Air
Find Deal
Tue, Oct 21 - Tue, Dec 9
Delta Logo
5:49 pm - 11:20 amONT-HKG
49h 31m2 stops
Delta Logo
12:35 pm - 6:18 pmHKG-ONT
21h 43m2 stops
$728Delta
Find Deal
Sun, Nov 23 - Thu, Nov 27
Korean Air Logo
7:35 am - 10:30 pmONT-HKG
23h 55m2 stops
Korean Air Logo
6:10 pm - 5:10 pmHKG-ONT
39h 00m2 stops
$733Korean Air
Find Deal
Tue, Oct 21 - Wed, Nov 5
Delta Logo
6:45 am - 11:10 pmONT-HKG
24h 25m2 stops
Delta Logo
12:55 am - 6:18 pmHKG-ONT
33h 23m2 stops
$738Delta
Find Deal
Mon, Nov 24 - Wed, Nov 26
Delta Logo
6:45 am - 11:20 amONT-HKG
36h 35m2 stops
Delta Logo
6:10 pm - 6:18 pmHKG-ONT
40h 08m2 stops
$740Delta
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Sun, Nov 23 - Wed, Nov 26
Multiple Airlines Logo
11:10 pm - 9:30 pmONT-HKG
31h 20m1 stop
Multiple Airlines Logo
10:00 am - 4:30 pmHKG-ONT
22h 30m1 stop
$772Multiple Airlines
Find Deal
Wed, Oct 22 - Sat, Nov 8
Multiple Airlines Logo
9:45 pm - 2:00 pmONT-HKG
24h 15m1 stop
Multiple Airlines Logo
4:35 pm - 4:30 pmHKG-ONT
15h 55m1 stop
$786Multiple Airlines
Find Deal
Mon, Nov 24 - Wed, Nov 26
China Airlines Logo
10:50 pm - 1:00 pmONT-HKG
22h 10m1 stop
China Airlines Logo
5:35 pm - 4:50 pmHKG-ONT
15h 15m1 stop
$824China Airlines
Find Deal
Wed, Jan 7 - Mon, Feb 23
China Airlines Logo
10:50 pm - 1:00 pmONT-HKG
22h 10m1 stop
China Airlines Logo
10:20 am - 4:50 pmHKG-ONT
22h 30m1 stop
$825China Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19

Delta flights from Ontario to Hong Kong

Our best Delta deals on Ontario to Hong Kong flight tickets
Delta
Nov 24
ONT6:00 amOntario
37h 20m
2 stops
HKG11:20 amHong Kong Intl
Nov 27
HKG12:35 pmHong Kong Intl
21h 43m
2 stops
ONT6:18 pmOntario
$722
Find similar
Delta
Nov 23
ONT5:49 pmOntario
49h 31m
2 stops
HKG11:20 amHong Kong Intl
Nov 27
HKG12:35 pmHong Kong Intl
21h 43m
2 stops
ONT6:18 pmOntario
$728
Find similar
Delta
Nov 24
ONT6:45 amOntario
24h 25m
2 stops
HKG11:10 pmHong Kong Intl
Nov 26
HKG12:55 amHong Kong Intl
33h 23m
2 stops
ONT6:18 pmOntario
$738
Find similar

Korean Air flights from Ontario to Hong Kong

Our best Korean Air deals on Ontario to Hong Kong flight tickets
Korean Air
Oct 21
ONT7:35 amOntario
23h 55m
2 stops
HKG10:30 pmHong Kong Intl
Dec 9
HKG12:55 amHong Kong Intl
32h 12m
2 stops
ONT5:07 pmOntario
$726
Find similar
Korean Air
Oct 21
ONT7:35 amOntario
23h 55m
2 stops
HKG10:30 pmHong Kong Intl
Nov 5
HKG6:10 pmHong Kong Intl
39h 00m
2 stops
ONT5:10 pmOntario
$733
Find similar
Korean Air
Oct 1
ONT6:00 amOntario
25h 30m
2 stops
HKG10:30 pmHong Kong Intl
Oct 29
HKG12:55 amHong Kong Intl
31h 15m
2 stops
ONT5:10 pmOntario
$741
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Hong Kong that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Ontario to Hong Kong that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 11/24

6:00 am-11:20 am

2 stops37h 20m

Hong Kong Intl

Thu 11/27

12:35 pm-6:18 pm

2 stops21h 43m

$722

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 10/21

7:35 am-10:30 pm

2 stops23h 55m

Hong Kong Intl

Tue 12/9

12:55 am-5:07 pm

2 stops32h 12m

$726

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 11/23

5:49 pm-11:20 am

2 stops49h 31m

Hong Kong Intl

Thu 11/27

12:35 pm-6:18 pm

2 stops21h 43m

$728

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 10/21

7:35 am-10:30 pm

2 stops23h 55m

Hong Kong Intl

Wed 11/5

6:10 pm-5:10 pm

2 stops39h 00m

$733

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 11/24

6:45 am-11:10 pm

2 stops24h 25m

Hong Kong Intl

Wed 11/26

12:55 am-6:18 pm

2 stops33h 23m

$738

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 11/23

6:45 am-11:20 am

2 stops36h 35m

Hong Kong Intl

Wed 11/26

6:10 pm-6:18 pm

2 stops40h 08m

$740

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 10/22

11:10 pm-9:30 pm

1 stop31h 20m

Hong Kong Intl

Sat 11/8

10:00 am-4:30 pm

1 stop22h 30m

$772

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 11/24

9:45 pm-2:00 pm

1 stop24h 15m

Hong Kong Intl

Wed 11/26

4:35 pm-4:30 pm

1 stop15h 55m

$786

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 1/7

10:50 pm-1:00 pm

1 stop22h 10m

Hong Kong Intl

Mon 2/23

5:35 pm-4:50 pm

1 stop15h 15m

$824

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 1/12

10:50 pm-1:00 pm

1 stop22h 10m

Hong Kong Intl

Mon 1/19

10:20 am-4:50 pm

1 stop22h 30m

$825

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Hong Kong from

How to get the cheapest flight ticket from Ontario to Hong Kong

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Hong Kong?

The month of August is, on average, the cheapest month to fly to Hong Kong from Ontario, with most prices found around $858. The month of October is another great option to travel to Hong Kong, with average flight prices from Ontario averaging around $913.

What is the cheapest day to depart on your flight to Hong Kong?

The cheapest day to depart from Ontario to Hong Kong is on a Monday. Travelers who choose to depart for Hong Kong on a Monday will often find tickets for as low as $850. The most expensive day to fly to Hong Kong is Friday, with ticket prices averaging around $1,039.

What is the cheapest time of day to depart on your flight to Hong Kong?

The cheapest time of day to fly to Hong Kong is in the evening when flights can be purchased for as low as $913. At noon is when there is more demand to fly to Hong Kong, so prices are often more expensive at around $1,012 per ticket.

How far in advance should I book a flight to Hong Kong?

You are more likely to see cheaper flights to Hong Kong from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Hong Kong for around $1,067 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hong Kong from Ontario for as low as $880 on momondo.

When to book flights from Ontario to Hong Kong

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Hong Kong according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Hong Kong (ONT to HKG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Hong Kong

Direct flights

None
There are no direct flights from Ontario to Hong Kong. There are no popular flight routes from Ontario to Hong Kong.
Search flight deals

  • How far is Ontario to Hong Kong Intl by plane?

    The distance between Ontario and Hong Kong Intl is about 7258.2 mi. Flights usually cover this in 18h 25m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Hong Kong Intl Airport?

    Prices for flights from Ontario Airport to Hong Kong Intl Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Hong Kong Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Hong Kong Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Hong Kong Intl Airport.

  • What documentation or ID do you need to fly to Hong Kong Intl Airport?

    The necessary travel and health documents for your Hong Kong Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Hong Kong?

Best airlines flying from Ontario to Hong Kong

Compare and see reviews for airlines that fly from Ontario to Hong Kong with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $846Free CancellationRating
8.3
768 reviews
Search China Airlines flights
United AirlinesPriceFrom $908Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Cathay PacificPriceFrom $928Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Hong Kong?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Hong Kong. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Hong Kong with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Hong Kong flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Hong Kong?

momondo helps you find the best flight between Ontario and Hong Kong by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Hong Kong right now. Can momondo alert me if prices change?

Price alerts on flights to Hong Kong from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Hong Kong trip

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