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Cheap flights from St. Louis to Hong Kong from $424

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Hong Kong departing on 11/25. 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 St. Louis to Hong Kong

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 am - 4:05 pmSTL-HKG
43h 05m2 stops
Air Canada Logo
6:00 pm - 3:21 pmHKG-STL
34h 21m2 stops
$762Air Canada
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Tue, Apr 28 - Tue, May 5
Air Canada Logo
4:05 pm - 4:05 pmSTL-HKG
59h 00m2 stops
Air Canada Logo
6:00 pm - 3:16 pmHKG-STL
34h 16m2 stops
$807Air Canada
Find Deal
Mon, Apr 27 - Fri, May 1
Air Canada Logo
4:05 pm - 4:05 pmSTL-HKG
59h 00m2 stops
Air Canada Logo
6:00 pm - 3:24 pmHKG-STL
58h 24m2 stops
$858Air Canada
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Mon, Mar 30 - Mon, Apr 13
Multiple Airlines Logo
2:55 pm - 12:40 amSTL-HKG
43h 45m2 stops
Multiple Airlines Logo
1:10 pm - 11:56 pmHKG-STL
24h 46m2 stops
$919Multiple Airlines
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Sun, Feb 15 - Thu, Mar 5
United Airlines Logo
6:30 pm - 5:00 amSTL-HKG
21h 30m1 stop
United Airlines Logo
11:45 am - 10:40 pmHKG-STL
23h 55m1 stop
$939United Airlines
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Tue, Apr 28 - Tue, May 5
United Airlines Logo
3:15 pm - 5:00 amSTL-HKG
24h 45m2 stops
United Airlines Logo
11:45 am - 5:03 pmHKG-STL
18h 18m1 stop
$943United Airlines
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Tue, Apr 28 - Tue, May 5
ANA Logo
1:11 pm - 5:45 amSTL-HKG
50h 34m2 stops
ANA Logo
12:05 am - 7:19 pmHKG-STL
33h 14m2 stops
$1,031ANA
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Sun, Feb 15 - Wed, Mar 4
Multiple Airlines Logo
5:59 pm - 4:35 amSTL-HKG
21h 36m1 stop
Multiple Airlines Logo
12:05 am - 11:16 pmHKG-STL
36h 11m1 stop
$1,142Multiple Airlines
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Mon, Mar 30 - Sun, Apr 12
Cathay Pacific Logo
12:56 pm - 8:50 pmSTL-HKG
18h 54m1 stop
Cathay Pacific Logo
12:05 am - 11:16 pmHKG-STL
36h 11m1 stop
$1,143Cathay Pacific
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Tue, Apr 28 - Mon, May 4
ANA Logo
8:00 am - 5:45 amSTL-HKG
31h 45m2 stops
ANA Logo
12:05 am - 5:54 pmHKG-STL
31h 49m2 stops
$1,906ANA
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Sun, Dec 14 - Sat, Dec 20

Air Canada flights from St. Louis to Hong Kong

Our best Air Canada deals on St. Louis to Hong Kong flight tickets
Air Canada
Apr 28
STL8:00 amLambert-St Louis
43h 05m
2 stops
HKG4:05 pmHong Kong Intl
May 5
HKG6:00 pmHong Kong Intl
34h 21m
2 stops
STL3:21 pmLambert-St Louis
$762
Find similar
Air Canada
Apr 27
STL4:05 pmLambert-St Louis
59h 00m
2 stops
HKG4:05 pmHong Kong Intl
May 1
HKG6:00 pmHong Kong Intl
34h 16m
2 stops
STL3:16 pmLambert-St Louis
$807
Find similar
Air Canada
Mar 30
STL4:05 pmLambert-St Louis
59h 00m
2 stops
HKG4:05 pmHong Kong Intl
Apr 13
HKG6:00 pmHong Kong Intl
58h 24m
2 stops
STL3:24 pmLambert-St Louis
$858
Find similar

United Airlines flights from St. Louis to Hong Kong

Our best United Airlines deals on St. Louis to Hong Kong flight tickets
United Airlines
Apr 28
STL6:30 pmLambert-St Louis
21h 30m
1 stop
HKG5:00 amHong Kong Intl
May 5
HKG11:45 amHong Kong Intl
23h 55m
1 stop
STL10:40 pmLambert-St Louis
$939
Find similar
United Airlines
Apr 28
STL3:15 pmLambert-St Louis
24h 45m
2 stops
HKG5:00 amHong Kong Intl
May 5
HKG11:45 amHong Kong Intl
18h 18m
1 stop
STL5:03 pmLambert-St Louis
$943
Find similar
United Airlines
Feb 15
STL5:25 pmLambert-St Louis
35h 55m
1 stop
HKG7:20 pmHong Kong Intl
Mar 5
HKG10:35 amHong Kong Intl
20h 09m
1 stop
STL4:44 pmLambert-St Louis
$948
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis 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 October 30, 2025.
Use the filters below to find and compare flights from St. Louis to Hong Kong that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

8:00 am-4:05 pm

2 stops43h 05m

Hong Kong Intl

Tue 5/5

6:00 pm-3:21 pm

2 stops34h 21m

$762

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/27

4:05 pm-4:05 pm

2 stops59h 00m

Hong Kong Intl

Fri 5/1

6:00 pm-3:16 pm

2 stops34h 16m

$807

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 3/30

4:05 pm-4:05 pm

2 stops59h 00m

Hong Kong Intl

Mon 4/13

6:00 pm-3:24 pm

2 stops58h 24m

$858

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 2/15

2:55 pm-12:40 am

2 stops43h 45m

Hong Kong Intl

Thu 3/5

1:10 pm-11:56 pm

2 stops24h 46m

$919

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

6:30 pm-5:00 am

1 stop21h 30m

Hong Kong Intl

Tue 5/5

11:45 am-10:40 pm

1 stop23h 55m

$939

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

3:15 pm-5:00 am

2 stops24h 45m

Hong Kong Intl

Tue 5/5

11:45 am-5:03 pm

1 stop18h 18m

$943

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 2/15

1:11 pm-5:45 am

2 stops50h 34m

Hong Kong Intl

Wed 3/4

12:05 am-7:19 pm

2 stops33h 14m

$1,031

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 3/30

5:59 pm-4:35 am

1 stop21h 36m

Hong Kong Intl

Sun 4/12

12:05 am-11:16 pm

1 stop36h 11m

$1,142

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

12:56 pm-8:50 pm

1 stop18h 54m

Hong Kong Intl

Mon 5/4

12:05 am-11:16 pm

1 stop36h 11m

$1,143

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 12/14

8:00 am-5:45 am

2 stops31h 45m

Hong Kong Intl

Sat 12/20

12:05 am-5:54 pm

2 stops31h 49m

$1,906

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 St. Louis 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 April is, on average, the cheapest month to fly to Hong Kong from St. Louis, with most prices found around $859. The month of October is another great option to travel to Hong Kong, with average flight prices from St. Louis averaging around $1,072.

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

The cheapest day to depart from St. Louis to Hong Kong is on a Sunday. Travelers who choose to depart for Hong Kong on a Sunday will often find tickets for as low as $1,293. The most expensive day to fly to Hong Kong is Friday, with ticket prices averaging around $1,955.

Can stopping save me money on St. Louis to Hong Kong flights?

You could potentially save up to 12% on your flight if you consider stops on a St. Louis to Hong Kong flight.

When to book flights from St. Louis to Hong Kong

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

Cheap St. Louis to Hong Kong (STL to HKG) flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to Hong Kong. There are no popular flight routes from St. Louis to Hong Kong.
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  • How far is Lambert-St Louis to Hong Kong Intl by plane?

    The straight-line distance from Lambert-St Louis to Hong Kong Intl is 7933.7 mi. 18h 54m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Hong Kong Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Hong Kong Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Hong Kong Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Hong Kong Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis 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 St. Louis to Hong Kong?

Best airlines flying from St. Louis to Hong Kong

Compare and see reviews for airlines that fly from St. Louis to Hong Kong with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $733Free CancellationRating
7.1
10,378 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,179Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,331Free CancellationRating
7.6
1,044 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Hong Kong?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Hong Kong from St. Louis.

Can I find flights from St. Louis to Hong Kong with flexible booking policies on momondo?

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

How can momondo help me find flights from St. Louis to Hong Kong?

Once all potential St. Louis to Hong Kong flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from St. Louis to Hong Kong now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Hong Kong and let you know when they change.

An easier way to manage your Hong Kong trip

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