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Cheap flights from St. Louis to Hong Kong from $428

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 2/4. 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
8:26 am - 4:05 pmSTL-HKG
42h 39m2 stops
Air Canada Logo
6:00 pm - 6:25 pmHKG-STL
61h 25m2 stops
$796Air Canada
Find Deal
Tue, Apr 28 - Tue, May 5
Air Canada Logo
8:05 am - 6:40 pmSTL-HKG
44h 35m2 stops
Air Canada Logo
8:25 pm - 9:00 pmHKG-STL
38h 35m2 stops
$801Air Canada
Find Deal
Sun, Feb 1 - Wed, Feb 11
Air Canada Logo
1:30 pm - 4:05 pmSTL-HKG
37h 35m2 stops
Air Canada Logo
6:00 pm - 6:18 pmHKG-STL
37h 18m2 stops
$809Air Canada
Find Deal
Mon, May 18 - Wed, Jun 24
Air Canada Logo
4:05 pm - 4:05 pmSTL-HKG
35h 00m2 stops
Air Canada Logo
6:00 pm - 3:16 pmHKG-STL
34h 16m2 stops
$812Air Canada
Find Deal
Tue, Apr 28 - Tue, May 5
Air Canada Logo
7:41 am - 6:40 pmSTL-HKG
44h 59m2 stops
Air Canada Logo
8:25 pm - 3:29 pmHKG-STL
57h 04m2 stops
$851Air Canada
Find Deal
Mon, Feb 16 - Sun, Mar 1
Air Canada Logo
4:05 pm - 6:40 pmSTL-HKG
36h 35m2 stops
Air Canada Logo
8:25 pm - 3:29 pmHKG-STL
33h 04m2 stops
$862Air Canada
Find Deal
Mon, Feb 16 - Sun, Mar 1
Air Canada Logo
1:30 pm - 4:05 pmSTL-HKG
37h 35m2 stops
Air Canada Logo
6:00 pm - 6:17 pmHKG-STL
37h 17m2 stops
$864Air Canada
Find Deal
Tue, May 12 - Mon, Aug 10
Air Canada Logo
9:10 am - 4:05 pmSTL-HKG
65h 55m2 stops
Air Canada Logo
6:00 pm - 6:18 pmHKG-STL
61h 18m2 stops
$870Air Canada
Find Deal
Tue, May 12 - Wed, Jun 17
Air Canada Logo
1:30 pm - 4:05 pmSTL-HKG
37h 35m2 stops
Air Canada Logo
6:00 pm - 6:17 pmHKG-STL
37h 17m2 stops
$884Air Canada
Find Deal
Tue, May 12 - Wed, Aug 5
Multiple Airlines Logo
9:57 am - 6:40 pmSTL-HKG
42h 43m2 stops
Multiple Airlines Logo
12:05 am - 3:29 pmHKG-STL
53h 24m2 stops
$894Multiple Airlines
Find Deal
Sun, Feb 1 - Tue, Feb 10

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
STL8:26 amLambert-St Louis
42h 39m
2 stops
HKG4:05 pmHong Kong Intl
May 5
HKG6:00 pmHong Kong Intl
61h 25m
2 stops
STL6:25 pmLambert-St Louis
$796
Find similar
Air Canada
Feb 1
STL8:05 amLambert-St Louis
44h 35m
2 stops
HKG6:40 pmHong Kong Intl
Feb 11
HKG8:25 pmHong Kong Intl
38h 35m
2 stops
STL9:00 pmLambert-St Louis
$801
Find similar
Air Canada
May 18
STL1:30 pmLambert-St Louis
37h 35m
2 stops
HKG4:05 pmHong Kong Intl
Jun 24
HKG6:00 pmHong Kong Intl
37h 18m
2 stops
STL6:18 pmLambert-St Louis
$809
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
STL8:30 amLambert-St Louis
21h 25m
1 stop
HKG6:55 pmHong Kong Intl
May 5
HKG11:45 amHong Kong Intl
19h 37m
1 stop
STL6:22 pmLambert-St Louis
$1,031
Find similar
United Airlines
Apr 28
STL8:30 amLambert-St Louis
21h 25m
1 stop
HKG6:55 pmHong Kong Intl
May 5
HKG12:40 pmHong Kong Intl
24h 03m
2 stops
STL11:43 pmLambert-St Louis
$1,035
Find similar
United Airlines
Nov 23
STL1:35 pmLambert-St Louis
27h 25m
2 stops
HKG7:00 amHong Kong Intl
Nov 25
HKG10:45 pmHong Kong Intl
27h 54m
2 stops
STL12:39 pmLambert-St Louis
$1,060
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 November 20, 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

8:26 am-4:05 pm

2 stops42h 39m

Hong Kong Intl

Tue 5/5

6:00 pm-6:25 pm

2 stops61h 25m

$796

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 2/1

8:05 am-6:40 pm

2 stops44h 35m

Hong Kong Intl

Wed 2/11

8:25 pm-9:00 pm

2 stops38h 35m

$801

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 5/18

1:30 pm-4:05 pm

2 stops37h 35m

Hong Kong Intl

Wed 6/24

6:00 pm-6:18 pm

2 stops37h 18m

$809

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

4:05 pm-4:05 pm

2 stops35h 00m

Hong Kong Intl

Tue 5/5

6:00 pm-3:16 pm

2 stops34h 16m

$812

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 2/16

7:41 am-6:40 pm

2 stops44h 59m

Hong Kong Intl

Sun 3/1

8:25 pm-3:29 pm

2 stops57h 04m

$851

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 2/16

4:05 pm-6:40 pm

2 stops36h 35m

Hong Kong Intl

Sun 3/1

8:25 pm-3:29 pm

2 stops33h 04m

$862

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:30 pm-4:05 pm

2 stops37h 35m

Hong Kong Intl

Mon 8/10

6:00 pm-6:17 pm

2 stops37h 17m

$864

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

9:10 am-4:05 pm

2 stops65h 55m

Hong Kong Intl

Wed 6/17

6:00 pm-6:18 pm

2 stops61h 18m

$870

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

1:30 pm-4:05 pm

2 stops37h 35m

Hong Kong Intl

Wed 8/5

6:00 pm-6:17 pm

2 stops37h 17m

$884

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Sun 2/1

9:57 am-6:40 pm

2 stops42h 43m

Hong Kong Intl

Tue 2/10

12:05 am-3:29 pm

2 stops53h 24m

$894

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.

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

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.
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
10,463 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,179Free CancellationRating
7.4
9,029 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,331Free CancellationRating
7.6
1,066 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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