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Cheap flights from Hong Kong to St. Louis from $606

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to St. Louis departing on 9/29. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Hong Kong to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:00 am - 11:25 pm
HKG
-
STL
35h 25m
2 stops
American Airlines Logo
7:00 am - 5:05 am
STL
-
HKG
32h 05m
1 stop
$1,028American Airlines
Wed, Oct 28 - Mon, Nov 2
American Airlines Logo
1:10 am - 2:44 pm
HKG
-
STL
26h 34m
2 stops
American Airlines Logo
6:00 am - 5:45 am
STL
-
HKG
34h 45m
1 stop
$1,070American Airlines
Tue, Sep 15 - Sun, Sep 20
Qatar Airways Logo
6:05 pm - 11:25 pm
HKG
-
STL
42h 20m
2 stops
Qatar Airways Logo
8:40 am - 2:50 pm
STL
-
HKG
40h 10m
2 stops
$1,142Qatar Airways
Thu, Oct 29 - Mon, Nov 2
Qatar Airways Logo
12:25 am - 8:08 pm
HKG
-
STL
32h 43m
2 stops
Qatar Airways Logo
8:40 am - 2:50 pm
STL
-
HKG
40h 10m
2 stops
$1,143Qatar Airways
Wed, Oct 28 - Mon, Nov 2
Qatar Airways Logo
1:25 am - 12:27 am
HKG
-
STL
36h 02m
2 stops
Qatar Airways Logo
7:27 am - 3:10 pm
STL
-
HKG
42h 43m
2 stops
$1,173Qatar Airways
Tue, Sep 15 - Sun, Sep 20
Cathay Pacific Logo
4:30 pm - 10:00 pm
HKG
-
STL
18h 30m
1 stop
Cathay Pacific Logo
7:00 am - 7:10 pm
STL
-
HKG
22h 10m
1 stop
$1,628Cathay Pacific
Thu, Oct 29 - Mon, Nov 2
Cathay Pacific Logo
4:30 pm - 10:00 pm
HKG
-
STL
18h 30m
1 stop
Cathay Pacific Logo
7:00 am - 7:10 pm
STL
-
HKG
22h 10m
1 stop
$1,629Cathay Pacific
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
11:45 am - 6:39 pm
HKG
-
STL
19h 54m
1 stop
United Airlines Logo
8:42 am - 6:55 pm
STL
-
HKG
21h 13m
1 stop
$1,729United Airlines
Wed, Sep 16 - Sun, Sep 20

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Qatar Airways flights from Hong Kong to St. Louis

Our best Qatar Airways deals on Hong Kong to St. Louis flight tickets
Qatar Airways
Oct 29
HKG6:05 pmHong Kong Intl
42h 20m
2 stops
STL11:25 pmLambert-St Louis
Nov 2
STL8:40 amLambert-St Louis
40h 10m
2 stops
HKG2:50 pmHong Kong Intl
$1,142
Qatar Airways
Oct 28
HKG12:25 amHong Kong Intl
32h 43m
2 stops
STL8:08 pmLambert-St Louis
Nov 2
STL8:40 amLambert-St Louis
40h 10m
2 stops
HKG2:50 pmHong Kong Intl
$1,143
Qatar Airways
Sep 15
HKG1:25 amHong Kong Intl
36h 02m
2 stops
STL12:27 amLambert-St Louis
Sep 20
STL7:27 amLambert-St Louis
42h 43m
2 stops
HKG3:10 pmHong Kong Intl
$1,173

Cathay Pacific flights from Hong Kong to St. Louis

Our best Cathay Pacific deals on Hong Kong to St. Louis flight tickets
Cathay Pacific
Oct 29
HKG4:30 pmHong Kong Intl
18h 30m
1 stop
STL10:00 pmLambert-St Louis
Nov 2
STL7:00 amLambert-St Louis
22h 10m
1 stop
HKG7:10 pmHong Kong Intl
$1,628
Cathay Pacific
Oct 29
HKG4:30 pmHong Kong Intl
18h 30m
1 stop
STL10:00 pmLambert-St Louis
Nov 2
STL7:00 amLambert-St Louis
22h 10m
1 stop
HKG7:10 pmHong Kong Intl
$1,629

momondo Fare Finder

 
Customize your flight search to find flights from Hong Kong to St. Louis 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 June 24, 2026.
Use the filters below to find and compare flights from Hong Kong to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 10/28

1:00 am-11:25 pm

2 stops35h 25m

Lambert-St Louis

Mon 11/2

7:00 am-5:05 am

1 stop32h 05m

$1,028

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 9/15

1:10 am-2:44 pm

2 stops26h 34m

Lambert-St Louis

Sun 9/20

6:00 am-5:45 am

1 stop34h 45m

$1,070

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 10/29

6:05 pm-11:25 pm

2 stops42h 20m

Lambert-St Louis

Mon 11/2

8:40 am-2:50 pm

2 stops40h 10m

$1,142

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 10/28

12:25 am-8:08 pm

2 stops32h 43m

Lambert-St Louis

Mon 11/2

8:40 am-2:50 pm

2 stops40h 10m

$1,143

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 9/15

1:25 am-12:27 am

2 stops36h 02m

Lambert-St Louis

Sun 9/20

7:27 am-3:10 pm

2 stops42h 43m

$1,173
Quickest round-trip

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 10/29

4:30 pm-10:00 pm

1 stop18h 30m

Lambert-St Louis

Mon 11/2

7:00 am-7:10 pm

1 stop22h 10m

$1,628

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Thu 10/29

4:30 pm-10:00 pm

1 stop18h 30m

Lambert-St Louis

Mon 11/2

7:00 am-7:10 pm

1 stop22h 10m

$1,629

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Wed 9/16

11:45 am-6:39 pm

1 stop19h 54m

Lambert-St Louis

Sun 9/20

8:42 am-6:55 pm

1 stop21h 13m

$1,729
Cheapest one-way

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 9/29

11:05 am-2:21 pm

2 stops40h 16m

$606

Hong KongSt. Louis

HKG - STL

HKGSTL

Hong Kong Intl

Tue 9/29

11:05 am-2:21 pm

2 stops40h 16m

$607

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Hong Kong to St. Louis

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

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

You could potentially save up to 42% on your flight if you consider stops on a Hong Kong to St. Louis flight.

When to book flights from Hong Kong to St. Louis

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

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

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

Fastest flight time

42h 20m

Direct flights

None
The fastest flight from Hong Kong to St. Louis takes 42h 20m
There are no direct flights from Hong Kong to St. Louis. There are no popular flight routes from Hong Kong to St. Louis.
Search flight deals

Frequently asked questions about flying from Hong Kong to St. Louis

  • How far is Hong Kong Intl to Lambert-St Louis by plane?

    The distance between Hong Kong Intl and Lambert-St Louis is about 7933.7 mi. A reasonable flight in good conditions will take 42h 20m.

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

    Prices for flights from Hong Kong Intl Airport to Lambert-St Louis Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Hong Kong Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis 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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Hong Kong to St. Louis for you.

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

momondo does allow users to show only those flights to St. Louis from Hong Kong which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Hong Kong. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to St. Louis from Hong Kong 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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