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Cheap flights from Ontario to Hong Kong from $399

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 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m1 stop
Multiple Airlines Logo
8:10 am - 5:05 pm
HKG
-
ONT
23h 55m1 stop
$738Multiple Airlines
Fri, Apr 10 - Sat, Apr 25
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m1 stop
Multiple Airlines Logo
3:45 pm - 5:05 pm
HKG
-
ONT
16h 20m1 stop
$765Multiple Airlines
Fri, Apr 3 - Sat, Apr 11
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m1 stop
Multiple Airlines Logo
10:10 am - 5:05 pm
HKG
-
ONT
21h 55m1 stop
$769Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
11:10 pm - 10:05 am
ONT
-
HKG
19h 55m1 stop
Multiple Airlines Logo
10:10 am - 5:05 pm
HKG
-
ONT
21h 55m1 stop
$773Multiple Airlines
Mon, Apr 6 - Mon, Apr 27
Multiple Airlines Logo
9:45 pm - 6:00 pm
ONT
-
HKG
28h 15m1 stop
Multiple Airlines Logo
6:50 pm - 3:50 pm
HKG
-
ONT
37h 00m1 stop
$776Multiple Airlines
Mon, Jan 12 - Thu, Jan 29
Multiple Airlines Logo
9:45 pm - 9:25 pm
ONT
-
HKG
31h 40m1 stop
Multiple Airlines Logo
10:55 pm - 4:50 pm
HKG
-
ONT
32h 55m1 stop
$781Multiple Airlines
Wed, Mar 4 - Tue, Mar 24
Multiple Airlines Logo
9:45 pm - 2:30 pm
ONT
-
HKG
24h 45m1 stop
Multiple Airlines Logo
1:40 pm - 3:50 pm
HKG
-
ONT
18h 10m1 stop
$796Multiple Airlines
Mon, Feb 2 - Mon, Feb 16
Multiple Airlines Logo
10:45 pm - 2:30 pm
ONT
-
HKG
24h 45m1 stop
Multiple Airlines Logo
6:50 pm - 5:05 pm
HKG
-
ONT
37h 15m1 stop
$801Multiple Airlines
Wed, Mar 18 - Tue, Apr 14
Multiple Airlines Logo
9:45 pm - 1:00 pm
ONT
-
HKG
23h 15m1 stop
Multiple Airlines Logo
1:00 pm - 3:50 pm
HKG
-
ONT
18h 50m1 stop
$804Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
9:45 pm - 9:35 pm
ONT
-
HKG
31h 50m1 stop
Multiple Airlines Logo
1:00 pm - 4:50 pm
HKG
-
ONT
18h 50m1 stop
$811Multiple Airlines
Sat, Feb 14 - Wed, Mar 11

Delta flights from Ontario to Hong Kong

Our best Delta deals on Ontario to Hong Kong flight tickets
Delta
Mar 2
ONT7:30 amOntario
23h 40m
2 stops
HKG11:10 pmHong Kong Intl
Mar 23
HKG6:10 pmHong Kong Intl
43h 24m
2 stops
ONT10:34 pmOntario
$903
Find similar
Delta
Mar 1
ONT1:10 pmOntario
42h 00m
2 stops
HKG11:10 pmHong Kong Intl
Mar 15
HKG12:55 amHong Kong Intl
36h 39m
2 stops
ONT10:34 pmOntario
$909
Find similar
Delta
Apr 1
ONT6:00 amOntario
25h 30m
2 stops
HKG10:30 pmHong Kong Intl
Apr 16
HKG12:20 pmHong Kong Intl
19h 55m
2 stops
ONT5:15 pmOntario
$921
Find similar

China Airlines flights from Ontario to Hong Kong

Our best China Airlines deals on Ontario to Hong Kong flight tickets
China Airlines
Jan 26
ONT10:50 pmOntario
22h 10m
1 stop
HKG1:00 pmHong Kong Intl
Jan 29
HKG11:10 amHong Kong Intl
21h 40m
1 stop
ONT4:50 pmOntario
$833
Find similar
China Airlines
Jan 26
ONT10:50 pmOntario
22h 10m
1 stop
HKG1:00 pmHong Kong Intl
Jan 29
HKG5:35 pmHong Kong Intl
15h 15m
1 stop
ONT4:50 pmOntario
$839
Find similar
China Airlines
May 4
ONT12:10 amOntario
18h 55m
1 stop
HKG10:05 amHong Kong Intl
May 6
HKG2:00 pmHong Kong Intl
19h 00m
1 stop
ONT6:00 pmOntario
$846
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 December 23, 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

Fri 4/10

11:10 pm-10:05 am

1 stop19h 55m

Hong Kong Intl

Sat 4/25

8:10 am-5:05 pm

1 stop23h 55m

$738

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Fri 4/3

11:10 pm-10:05 am

1 stop19h 55m

Hong Kong Intl

Sat 4/11

3:45 pm-5:05 pm

1 stop16h 20m

$765

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 4/15

11:10 pm-10:05 am

1 stop19h 55m

Hong Kong Intl

Mon 4/20

10:10 am-5:05 pm

1 stop21h 55m

$769

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 4/6

11:10 pm-10:05 am

1 stop19h 55m

Hong Kong Intl

Mon 4/27

10:10 am-5:05 pm

1 stop21h 55m

$773

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 1/12

9:45 pm-6:00 pm

1 stop28h 15m

Hong Kong Intl

Thu 1/29

6:50 pm-3:50 pm

1 stop37h 00m

$776

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 3/4

9:45 pm-9:25 pm

1 stop31h 40m

Hong Kong Intl

Tue 3/24

10:55 pm-4:50 pm

1 stop32h 55m

$781

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Mon 2/2

9:45 pm-2:30 pm

1 stop24h 45m

Hong Kong Intl

Mon 2/16

1:40 pm-3:50 pm

1 stop18h 10m

$796

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 3/18

10:45 pm-2:30 pm

1 stop24h 45m

Hong Kong Intl

Tue 4/14

6:50 pm-5:05 pm

1 stop37h 15m

$801

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Wed 1/21

9:45 pm-1:00 pm

1 stop23h 15m

Hong Kong Intl

Wed 1/28

1:00 pm-3:50 pm

1 stop18h 50m

$804

OntarioHong Kong

ONT - HKG

ONTHKG

Ontario

Sat 2/14

9:45 pm-9:35 pm

1 stop31h 50m

Hong Kong Intl

Wed 3/11

1:00 pm-4:50 pm

1 stop18h 50m

$811

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 $834. The most expensive day to fly to Hong Kong is Friday, with ticket prices averaging around $995.

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 $894. At noon is when there is more demand to fly to Hong Kong, so prices are often more expensive at around $995 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 $1,069 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 $859 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.

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

19h 20m

Direct flights

None
The fastest flight from Ontario to Hong Kong takes 19h 20m
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 19h 20m, 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 $834Free CancellationRating
8.3
792 reviews
Search China Airlines flights
United AirlinesPriceFrom $908Free CancellationRating
7.4
9,106 reviews
Search United Airlines flights
Cathay PacificPriceFrom $928Free CancellationRating
7.6
1,103 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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