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Cheap flights from Ontario to Hong Kong from $314

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 2/12. 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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0 bags

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Find the cheapest flights from Ontario to Hong Kong

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:30 pm - 11:20 am
ONT
-
HKG
51h 50m2 stops
Delta Logo
12:35 pm - 10:44 pm
HKG
-
ONT
26h 09m2 stops
$619Delta
Sat, Feb 7 - Wed, Feb 11
Delta Logo
7:30 am - 11:10 pm
ONT
-
HKG
23h 40m2 stops
Delta Logo
12:55 am - 10:37 pm
HKG
-
ONT
37h 42m2 stops
$639Delta
Tue, Feb 24 - Sun, Mar 1
Korean Air Logo
7:00 am - 10:30 pm
ONT
-
HKG
24h 30m2 stops
Korean Air Logo
12:45 am - 5:16 pm
HKG
-
ONT
31h 31m2 stops
$642Korean Air
Tue, May 12 - Mon, Jun 15
Delta Logo
3:30 pm - 11:10 pm
ONT
-
HKG
39h 40m2 stops
Delta Logo
12:55 am - 10:34 pm
HKG
-
ONT
36h 39m2 stops
$644Delta
Sat, Mar 7 - Wed, Mar 18
Delta Logo
3:30 pm - 11:20 am
ONT
-
HKG
51h 50m2 stops
Delta Logo
12:45 am - 5:13 pm
HKG
-
ONT
31h 28m2 stops
$645Delta
Sat, Feb 21 - Mon, Mar 30
Delta Logo
1:10 pm - 11:20 am
ONT
-
HKG
54h 10m2 stops
Delta Logo
6:10 pm - 12:23 pm
HKG
-
ONT
57h 13m2 stops
$650Delta
Sun, Feb 22 - Sat, Mar 28
Delta Logo
3:30 pm - 11:20 am
ONT
-
HKG
51h 50m2 stops
Delta Logo
6:10 pm - 12:23 pm
HKG
-
ONT
57h 13m2 stops
$651Delta
Sat, Feb 21 - Sat, Mar 28
Delta Logo
7:30 am - 11:10 pm
ONT
-
HKG
23h 40m2 stops
Delta Logo
12:20 pm - 5:15 pm
HKG
-
ONT
19h 55m2 stops
$689Delta
Fri, Jan 23 - Thu, Apr 23
Korean Air Logo
7:00 am - 4:20 pm
ONT
-
HKG
42h 20m2 stops
Korean Air Logo
12:45 am - 5:16 pm
HKG
-
ONT
31h 31m2 stops
$692Korean Air
Fri, May 8 - Sat, Jun 20
Delta Logo
3:30 pm - 11:10 pm
ONT
-
HKG
39h 40m2 stops
Delta Logo
12:35 pm - 10:33 pm
HKG
-
ONT
24h 58m2 stops
$694Delta
Sat, Feb 7 - Fri, Mar 13

Korean Air flights from Ontario to Hong Kong

Our best Korean Air deals on Ontario to Hong Kong flight tickets
Korean Air
May 12
ONT7:00 amOntario
24h 30m
2 stops
HKG10:30 pmHong Kong Intl
Jun 22
HKG5:55 pmHong Kong Intl
38h 21m
2 stops
ONT5:16 pmOntario
$642
Find similar
Korean Air
May 8
ONT7:00 amOntario
24h 30m
2 stops
HKG10:30 pmHong Kong Intl
Jun 17
HKG5:55 pmHong Kong Intl
38h 21m
2 stops
ONT5:16 pmOntario
$692
Find similar
Korean Air
Feb 14
ONT6:00 amOntario
25h 10m
2 stops
HKG11:10 pmHong Kong Intl
Feb 24
HKG12:55 amHong Kong Intl
37h 42m
2 stops
ONT10:37 pmOntario
$715
Find similar

China Airlines flights from Ontario to Hong Kong

Our best China Airlines deals on Ontario to Hong Kong flight tickets
China Airlines
Mar 8
ONT11:50 pmOntario
18h 25m
1 stop
HKG9:15 amHong Kong Intl
Mar 13
HKG2:05 pmHong Kong Intl
18h 45m
1 stop
ONT5:50 pmOntario
$866
Find similar
China Airlines
Jan 20
ONT10:50 pmOntario
28h 10m
1 stop
HKG7:00 pmHong Kong Intl
Jan 27
HKG5:35 pmHong Kong Intl
15h 15m
1 stop
ONT4:50 pmOntario
$890
Find similar
China Airlines
Jan 20
ONT10:50 pmOntario
25h 45m
1 stop
HKG4:35 pmHong Kong Intl
Jan 28
HKG5:35 pmHong Kong Intl
15h 15m
1 stop
ONT4:50 pmOntario
$903
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 January 6, 2026.
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

Sat 2/7

3:30 pm-11:20 am

2 stops51h 50m

Hong Kong Intl

Wed 2/11

12:35 pm-10:44 pm

2 stops26h 09m

$619

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 2/24

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

Sun 3/1

12:55 am-10:37 pm

2 stops37h 42m

$639

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Tue 5/12

7:00 am-10:30 pm

2 stops24h 30m

Hong Kong Intl

Mon 6/15

12:45 am-5:16 pm

2 stops31h 31m

$642

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 3/7

3:30 pm-11:10 pm

2 stops39h 40m

Hong Kong Intl

Wed 3/18

12:55 am-10:34 pm

2 stops36h 39m

$644

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 2/21

3:30 pm-11:20 am

2 stops51h 50m

Hong Kong Intl

Mon 3/30

12:45 am-5:13 pm

2 stops31h 28m

$645

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sun 2/22

1:10 pm-11:20 am

2 stops54h 10m

Hong Kong Intl

Sat 3/28

6:10 pm-12:23 pm

2 stops57h 13m

$650

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 2/21

3:30 pm-11:20 am

2 stops51h 50m

Hong Kong Intl

Sat 3/28

6:10 pm-12:23 pm

2 stops57h 13m

$651

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 1/23

7:30 am-11:10 pm

2 stops23h 40m

Hong Kong Intl

Thu 4/23

12:20 pm-5:15 pm

2 stops19h 55m

$689

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 5/8

7:00 am-4:20 pm

2 stops42h 20m

Hong Kong Intl

Sat 6/20

12:45 am-5:16 pm

2 stops31h 31m

$692

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 2/7

3:30 pm-11:10 pm

2 stops39h 40m

Hong Kong Intl

Fri 3/13

12:35 pm-10:33 pm

2 stops24h 58m

$694

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 $875. The month of September is another great option to travel to Hong Kong, with average flight prices from Ontario averaging around $879.

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 $833. The most expensive day to fly to Hong Kong is Friday, with ticket prices averaging around $989.

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 $890. At noon is when there is more demand to fly to Hong Kong, so prices are often more expensive at around $994 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 $853 on momondo.

Can stopping save me money on Ontario to Hong Kong flights?

You could potentially save up to 22% on your flight if you consider stops on a Ontario to Hong Kong flight.

How have Ontario to Hong Kong flight prices changed over time?

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

Fastest flight time

18h 10m

Direct flights

None
The fastest flight from Ontario to Hong Kong takes 18h 10m
There are no direct flights from Ontario to Hong Kong. There are no popular flight routes from Ontario to Hong Kong.
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  • 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 10m, 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 $833Free CancellationRating
8.3
798 reviews
Search China Airlines flights
United AirlinesPriceFrom $908Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
Cathay PacificPriceFrom $928Free CancellationRating
7.6
1,121 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.

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