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Cheap flights from St. Louis to Hong Kong from $812

This is the cheapest round-trip 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 9/2. 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

Air Canada Logo
5:30 pm - 4:05 pmSTL-HKG
33h 35m2 stops
Air Canada Logo
6:00 pm - 7:57 pmHKG-STL
38h 57m2 stops
$812Air Canada
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Tue, Sep 2 - Wed, Sep 17
Air Canada Logo
4:00 pm - 4:05 pmSTL-HKG
35h 05m2 stops
Air Canada Logo
6:00 pm - 7:57 pmHKG-STL
38h 57m2 stops
$814Air Canada
Find Deal
Sun, Aug 31 - Tue, Sep 9
Logo
5:30 pm - 4:35 amSTL-HKG
22h 05m2 stops
Logo
8:20 am - 7:57 pmHKG-STL
24h 37m2 stops
$849
Find Deal
Mon, Sep 1 - Mon, Sep 8
Logo
9:15 am - 10:45 pmSTL-HKG
24h 30m2 stops
Logo
8:20 am - 7:57 pmHKG-STL
24h 37m2 stops
$864
Find Deal
Tue, Sep 2 - Mon, Sep 8
Delta Logo
6:40 am - 10:30 pmSTL-HKG
26h 50m2 stops
Delta Logo
12:20 pm - 10:02 pmHKG-STL
22h 42m2 stops
$934Delta
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Thu, Sep 4 - Tue, Sep 9
Delta Logo
6:40 am - 10:30 pmSTL-HKG
26h 50m2 stops
Delta Logo
5:55 pm - 1:20 pmHKG-STL
32h 25m2 stops
$984Delta
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Fri, Aug 29 - Mon, Sep 8
Cathay Pacific Logo
8:50 am - 8:50 pmSTL-HKG
23h 00m1 stop
Cathay Pacific Logo
12:40 pm - 7:22 pmHKG-STL
19h 42m1 stop
$1,098Cathay Pacific
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Mon, Sep 1 - Mon, Sep 8
Cathay Pacific Logo
7:59 pm - 8:50 pmSTL-HKG
35h 51m1 stop
Cathay Pacific Logo
12:40 pm - 8:32 pmHKG-STL
20h 52m1 stop
$1,104Cathay Pacific
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Sun, Aug 31 - Tue, Sep 9
United Airlines Logo
5:49 pm - 5:00 amSTL-HKG
22h 11m1 stop
United Airlines Logo
9:15 am - 10:00 pmHKG-STL
25h 45m2 stops
$1,179United Airlines
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Thu, Sep 18 - Thu, Sep 25
United Airlines Logo
5:49 pm - 5:00 amSTL-HKG
22h 11m1 stop
United Airlines Logo
2:35 pm - 11:44 pmHKG-STL
46h 09m2 stops
$1,180United Airlines
Find Deal
Mon, Sep 1 - Mon, Sep 8

Delta flights from St. Louis to Hong Kong

Our best Delta deals on St. Louis to Hong Kong flight tickets
Delta
Sep 4
STL6:40 amLambert-St Louis
26h 50m
2 stops
HKG10:30 pmHong Kong Intl
Sep 9
HKG12:20 pmHong Kong Intl
22h 42m
2 stops
STL10:02 pmLambert-St Louis
$934
Find similar
Delta
Aug 29
STL6:40 amLambert-St Louis
26h 50m
2 stops
HKG10:30 pmHong Kong Intl
Sep 8
HKG5:55 pmHong Kong Intl
32h 25m
2 stops
STL1:20 pmLambert-St Louis
$984
Find similar
Delta
Aug 29
STL8:46 amLambert-St Louis
24h 44m
2 stops
HKG10:30 pmHong Kong Intl
Sep 4
HKG12:45 amHong Kong Intl
33h 31m
2 stops
STL9:16 pmLambert-St Louis
$1,034
Find similar

Cathay Pacific flights from St. Louis to Hong Kong

Our best Cathay Pacific deals on St. Louis to Hong Kong flight tickets
Cathay Pacific
Sep 1
STL8:50 amLambert-St Louis
23h 00m
1 stop
HKG8:50 pmHong Kong Intl
Sep 8
HKG12:40 pmHong Kong Intl
19h 42m
1 stop
STL7:22 pmLambert-St Louis
$1,098
Find similar
Cathay Pacific
Aug 31
STL7:59 pmLambert-St Louis
35h 51m
1 stop
HKG8:50 pmHong Kong Intl
Sep 9
HKG12:40 pmHong Kong Intl
20h 52m
1 stop
STL8:32 pmLambert-St Louis
$1,104
Find similar
Cathay Pacific
Sep 2
STL5:30 pmLambert-St Louis
22h 05m
1 stop
HKG4:35 amHong Kong Intl
Sep 8
HKG4:05 pmHong Kong Intl
19h 45m
1 stop
STL10:50 pmLambert-St Louis
$1,118
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 August 5, 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 9/2

5:30 pm-4:05 pm

2 stops33h 35m

Hong Kong Intl

Wed 9/17

6:00 pm-7:57 pm

2 stops38h 57m

$812

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 8/31

4:00 pm-4:05 pm

2 stops35h 05m

Hong Kong Intl

Tue 9/9

6:00 pm-7:57 pm

2 stops38h 57m

$814

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 9/1

5:30 pm-4:35 am

2 stops22h 05m

Hong Kong Intl

Mon 9/8

8:20 am-7:57 pm

2 stops24h 37m

$849

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 9/2

9:15 am-10:45 pm

2 stops24h 30m

Hong Kong Intl

Mon 9/8

8:20 am-7:57 pm

2 stops24h 37m

$864

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Thu 9/4

6:40 am-10:30 pm

2 stops26h 50m

Hong Kong Intl

Tue 9/9

12:20 pm-10:02 pm

2 stops22h 42m

$934

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Fri 8/29

6:40 am-10:30 pm

2 stops26h 50m

Hong Kong Intl

Mon 9/8

5:55 pm-1:20 pm

2 stops32h 25m

$984

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 9/1

8:50 am-8:50 pm

1 stop23h 00m

Hong Kong Intl

Mon 9/8

12:40 pm-7:22 pm

1 stop19h 42m

$1,098

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 8/31

7:59 pm-8:50 pm

1 stop35h 51m

Hong Kong Intl

Tue 9/9

12:40 pm-8:32 pm

1 stop20h 52m

$1,104

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Thu 9/18

5:49 pm-5:00 am

1 stop22h 11m

Hong Kong Intl

Thu 9/25

9:15 am-10:00 pm

2 stops25h 45m

$1,179

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 9/1

5:49 pm-5:00 am

1 stop22h 11m

Hong Kong Intl

Mon 9/8

2:35 pm-11:44 pm

2 stops46h 09m

$1,180

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 February is, on average, the cheapest month to fly to Hong Kong from St. Louis, with most prices found around $1,063. The month of August is another great option to travel to Hong Kong, with average flight prices from St. Louis averaging around $1,069.

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 32% on your flight if you consider stops on a St. Louis to Hong Kong flight.

Cheap St. Louis to Hong Kong flight deals and tips

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

Best Price Found

$812

Fastest flight time

21h 37m

Direct flights

None

Airports in Hong Kong

1 airport
The best flight deal from St. Louis to Hong Kong found on momondo in the last 72 hours is $812
The fastest flight from St. Louis to Hong Kong takes 21h 37m
There are no direct flights from St. Louis to Hong Kong. Popular non-direct route for this connection is Lambert-St Louis Airport - Hong Kong Intl Airport.
There is 1 airport near Hong Kong: Hong Kong Intl (HKG)
Search flight deals

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

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

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

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

    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.

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

    The necessary travel and health documents for your Hong Kong 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.

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
9,890 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,079Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,331Free CancellationRating
7.6
953 reviews
Search Cathay Pacific flights

Why use momondo?

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

It is quick and easy to find St. Louis to Hong Kong flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Hong Kong that suits you.

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 you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Hong Kong from St. Louis.

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.

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