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Cheap flights from St. Louis to Hong Kong from $438

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 3/9. 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 St. Louis to Hong Kong

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
23h 20m2 stops
$701Air Canada
Tue, May 12 - Tue, Jun 23
Air Canada Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m2 stops
$706Air Canada
Mon, Apr 6 - Thu, May 7
Multiple Airlines Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m2 stops
Multiple Airlines Logo
9:05 am - 8:05 pm
HKG
-
STL
24h 00m2 stops
$709Multiple Airlines
Tue, Apr 28 - Tue, May 5
Air Canada Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
23h 20m2 stops
$738Air Canada
Mon, Apr 6 - Thu, May 7
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m2 stops
$743Air Canada
Tue, May 12 - Wed, Jun 17
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
32h 30m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m2 stops
$744Air Canada
Tue, Apr 28 - Tue, May 5
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m2 stops
Air Canada Logo
9:30 am - 8:05 pm
HKG
-
STL
23h 35m2 stops
$746Air Canada
Sun, May 3 - Thu, May 14
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m2 stops
Air Canada Logo
9:45 am - 2:02 pm
HKG
-
STL
41h 17m2 stops
$747Air Canada
Tue, May 12 - Tue, Jun 30
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m2 stops
Air Canada Logo
9:45 am - 12:21 pm
HKG
-
STL
39h 36m2 stops
$748Air Canada
Tue, May 12 - Tue, Jun 23
Air Canada Logo
7:30 am - 5:10 am
STL
-
HKG
32h 40m2 stops
Air Canada Logo
9:30 am - 8:05 pm
HKG
-
STL
23h 35m2 stops
$751Air Canada
Mon, May 4 - Thu, May 14

Air Canada flights from St. Louis to Hong Kong

Our best Air Canada deals on St. Louis to Hong Kong flight tickets
Air Canada
May 12
STL1:00 pmLambert-St Louis
27h 10m
2 stops
HKG5:10 amHong Kong Intl
Jun 23
HKG9:45 amHong Kong Intl
23h 20m
2 stops
STL8:05 pmLambert-St Louis
$701
Find similar
Air Canada
Apr 6
STL4:05 pmLambert-St Louis
48h 10m
2 stops
HKG5:15 amHong Kong Intl
May 7
HKG9:45 amHong Kong Intl
47h 20m
2 stops
STL8:05 pmLambert-St Louis
$706
Find similar
Air Canada
Apr 6
STL4:05 pmLambert-St Louis
48h 10m
2 stops
HKG5:15 amHong Kong Intl
May 7
HKG9:45 amHong Kong Intl
23h 20m
2 stops
STL8:05 pmLambert-St Louis
$738
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
May 12
STL8:30 amLambert-St Louis
21h 25m
1 stop
HKG6:55 pmHong Kong Intl
Jun 17
HKG10:30 pmHong Kong Intl
29h 51m
2 stops
STL3:21 pmLambert-St Louis
$1,130
Find similar
United Airlines
Apr 6
STL7:05 pmLambert-St Louis
20h 55m
1 stop
HKG5:00 amHong Kong Intl
May 7
HKG9:30 amHong Kong Intl
25h 56m
2 stops
STL10:26 pmLambert-St Louis
$1,133
Find similar
United Airlines
May 12
STL6:00 amLambert-St Louis
23h 30m
2 stops
HKG6:30 pmHong Kong Intl
Jun 23
HKG11:45 amHong Kong Intl
19h 08m
1 stop
STL5:53 pmLambert-St Louis
$1,134
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 January 6, 2026.
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 5/12

1:00 pm-5:10 am

2 stops27h 10m

Hong Kong Intl

Tue 6/23

9:45 am-8:05 pm

2 stops23h 20m

$701

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

4:05 pm-5:15 am

2 stops48h 10m

Hong Kong Intl

Thu 5/7

9:45 am-8:05 pm

2 stops47h 20m

$706

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

4:05 pm-5:15 am

2 stops48h 10m

Hong Kong Intl

Tue 5/5

9:05 am-8:05 pm

2 stops24h 00m

$709

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

4:05 pm-5:15 am

2 stops48h 10m

Hong Kong Intl

Thu 5/7

9:45 am-8:05 pm

2 stops23h 20m

$738

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:00 pm-5:10 am

2 stops51h 10m

Hong Kong Intl

Wed 6/17

9:45 am-8:05 pm

2 stops47h 20m

$743

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

7:45 am-5:15 am

2 stops32h 30m

Hong Kong Intl

Tue 5/5

9:45 am-8:05 pm

2 stops47h 20m

$744

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 5/3

1:00 pm-5:10 am

2 stops27h 10m

Hong Kong Intl

Thu 5/14

9:30 am-8:05 pm

2 stops23h 35m

$746

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:00 pm-5:10 am

2 stops51h 10m

Hong Kong Intl

Tue 6/30

9:45 am-2:02 pm

2 stops41h 17m

$747

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:00 pm-5:10 am

2 stops51h 10m

Hong Kong Intl

Tue 6/23

9:45 am-12:21 pm

2 stops39h 36m

$748

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 5/4

7:30 am-5:10 am

2 stops32h 40m

Hong Kong Intl

Thu 5/14

9:30 am-8:05 pm

2 stops23h 35m

$751

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 typical price of a round-trip flight between St. Louis and Hong Kong?

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 $754. The month of October is another great option to travel to Hong Kong, with average flight prices from St. Louis averaging around $1,072.

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

You could potentially save up to 3% 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

Fastest flight time

20h 54m

Direct flights

None
The fastest flight from St. Louis to Hong Kong takes 20h 54m
There are no direct flights from St. Louis to Hong Kong. There are no popular flight routes from St. Louis to Hong Kong.
Search flight deals

  • 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. 20h 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
United AirlinesPriceFrom $1,179Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,331Free CancellationRating
7.6
1,121 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.

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Cathay Pacific