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Cheap flights from St. Louis to Hong Kong from $796

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 1/18. 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
4:05 pm - 6:40 pm
STL
-
HKG
60h 35m2 stops
Air Canada Logo
8:25 pm - 3:29 pm
HKG
-
STL
57h 04m2 stops
$796Air Canada
Sun, Jan 18 - Thu, Jan 22
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m2 stops
Air Canada Logo
9:45 am - 3:16 pm
HKG
-
STL
42h 31m2 stops
$809Air Canada
Tue, May 12 - Wed, Aug 5
Air Canada Logo
10:00 am - 5:10 am
STL
-
HKG
30h 10m2 stops
Air Canada Logo
9:45 am - 3:16 pm
HKG
-
STL
42h 31m2 stops
$810Air Canada
Tue, Apr 28 - Tue, May 5
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
$816Air Canada
Tue, May 12 - Wed, Jun 17
Air Canada Logo
6:30 am - 5:10 am
STL
-
HKG
33h 40m2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m2 stops
$817Air Canada
Tue, Apr 28 - Tue, May 5
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m2 stops
Air Canada Logo
9:45 am - 3:16 pm
HKG
-
STL
42h 31m2 stops
$819Air Canada
Tue, May 12 - Tue, Jun 30
Air Canada Logo
1:00 pm - 5:10 am
STL
-
HKG
27h 10m2 stops
Air Canada Logo
9:45 am - 3:16 pm
HKG
-
STL
42h 31m2 stops
$859Air Canada
Tue, May 12 - Fri, Jul 31
Air Canada Logo
9:57 am - 6:40 pm
STL
-
HKG
42h 43m2 stops
Air Canada Logo
8:25 pm - 7:27 pm
HKG
-
STL
37h 02m2 stops
$891Air Canada
Fri, Jan 23 - Fri, Jan 30
Air Canada Logo
4:05 pm - 6:40 pm
STL
-
HKG
36h 35m2 stops
Air Canada Logo
8:25 pm - 3:29 pm
HKG
-
STL
33h 04m2 stops
$937Air Canada
Thu, Jan 8 - Thu, Jan 15
Air Canada Logo
1:30 pm - 5:10 am
STL
-
HKG
50h 40m2 stops
Air Canada Logo
9:45 am - 6:17 pm
HKG
-
STL
45h 32m2 stops
$979Air Canada
Tue, May 12 - Mon, Aug 10

Delta flights from St. Louis to Hong Kong

Our best Delta deals on St. Louis to Hong Kong flight tickets
Delta
Mar 13
STL6:00 amLambert-St Louis
40h 20m
2 stops
HKG11:20 amHong Kong Intl
Apr 11
HKG12:45 amHong Kong Intl
35h 57m
2 stops
STL11:42 pmLambert-St Louis
$1,306
Find similar
Delta
Mar 14
STL1:00 pmLambert-St Louis
45h 10m
2 stops
HKG11:10 pmHong Kong Intl
Apr 11
HKG12:45 amHong Kong Intl
33h 25m
2 stops
STL9:10 pmLambert-St Louis
$1,311
Find similar
Delta
Dec 14
STL6:39 amLambert-St Louis
38h 41m
2 stops
HKG11:20 amHong Kong Intl
Jan 8
HKG12:55 amHong Kong Intl
34h 40m
2 stops
STL9:35 pmLambert-St Louis
$2,709
Find similar

Air Canada flights from St. Louis to Hong Kong

Our best Air Canada deals on St. Louis to Hong Kong flight tickets
Air Canada
Jan 18
STL4:05 pmLambert-St Louis
60h 35m
2 stops
HKG6:40 pmHong Kong Intl
Jan 22
HKG8:25 pmHong Kong Intl
57h 04m
2 stops
STL3:29 pmLambert-St Louis
$796
Find similar
Air Canada
May 12
STL1:00 pmLambert-St Louis
27h 10m
2 stops
HKG5:10 amHong Kong Intl
Aug 5
HKG9:45 amHong Kong Intl
42h 31m
2 stops
STL3:16 pmLambert-St Louis
$809
Find similar
Air Canada
Apr 28
STL10:00 amLambert-St Louis
30h 10m
2 stops
HKG5:10 amHong Kong Intl
May 5
HKG9:45 amHong Kong Intl
42h 31m
2 stops
STL3:16 pmLambert-St Louis
$810
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 December 11, 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

Sun 1/18

4:05 pm-6:40 pm

2 stops60h 35m

Hong Kong Intl

Thu 1/22

8:25 pm-3:29 pm

2 stops57h 04m

$796

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:00 pm-5:10 am

2 stops27h 10m

Hong Kong Intl

Wed 8/5

9:45 am-3:16 pm

2 stops42h 31m

$809

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

10:00 am-5:10 am

2 stops30h 10m

Hong Kong Intl

Tue 5/5

9:45 am-3:16 pm

2 stops42h 31m

$810

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

$816

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

6:30 am-5:10 am

2 stops33h 40m

Hong Kong Intl

Tue 5/5

9:45 am-8:05 pm

2 stops47h 20m

$817

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-3:16 pm

2 stops42h 31m

$819

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:00 pm-5:10 am

2 stops27h 10m

Hong Kong Intl

Fri 7/31

9:45 am-3:16 pm

2 stops42h 31m

$859

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Fri 1/23

9:57 am-6:40 pm

2 stops42h 43m

Hong Kong Intl

Fri 1/30

8:25 pm-7:27 pm

2 stops37h 02m

$891

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Thu 1/8

4:05 pm-6:40 pm

2 stops36h 35m

Hong Kong Intl

Thu 1/15

8:25 pm-3:29 pm

2 stops33h 04m

$937

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:30 pm-5:10 am

2 stops50h 40m

Hong Kong Intl

Mon 8/10

9:45 am-6:17 pm

2 stops45h 32m

$979

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 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 $807. The month of February is another great option to travel to Hong Kong, with average flight prices from St. Louis averaging around $835.

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 29% 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

23h 29m

Direct flights

None
The fastest flight from St. Louis to Hong Kong takes 23h 29m
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. 23h 29m 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
10,514 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,179Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,331Free CancellationRating
7.6
1,093 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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Fly your favorite airline to Hong Kong

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Cathay Pacific
Air Canada