Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Hong Kong from $398

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 3/16. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Hong Kong

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 5:15 am
STL
-
HKG
33h 15m
2 stops
Multiple Airlines Logo
9:45 am - 11:59 pm
HKG
-
STL
27h 14m
2 stops
$654Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
4:05 pm - 5:15 am
STL
-
HKG
24h 10m
2 stops
Multiple Airlines Logo
9:45 am - 12:06 pm
HKG
-
STL
39h 21m
2 stops
$836Multiple Airlines
Fri, Apr 24 - Mon, May 4
Multiple Airlines Logo
4:05 pm - 5:15 am
STL
-
HKG
24h 10m
2 stops
Multiple Airlines Logo
9:45 am - 12:06 pm
HKG
-
STL
39h 21m
2 stops
$851Multiple Airlines
Fri, Apr 24 - Sun, May 3
Air Canada Logo
10:00 am - 5:15 am
STL
-
HKG
30h 15m
2 stops
Air Canada Logo
9:45 am - 9:08 pm
HKG
-
STL
24h 23m
2 stops
$854Air Canada
Tue, Apr 28 - Tue, May 5
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
56h 30m
2 stops
Air Canada Logo
9:45 am - 9:08 pm
HKG
-
STL
48h 23m
2 stops
$884Air Canada
Mon, Apr 6 - Thu, May 7
Air Canada Logo
4:05 pm - 5:15 am
STL
-
HKG
48h 10m
2 stops
Air Canada Logo
9:45 am - 3:24 pm
HKG
-
STL
42h 39m
2 stops
$885Air Canada
Mon, Apr 6 - Tue, Apr 14
Multiple Airlines Logo
1:00 pm - 5:10 am
STL
-
HKG
51h 10m
2 stops
Multiple Airlines Logo
9:45 am - 2:02 pm
HKG
-
STL
41h 17m
2 stops
$887Multiple Airlines
Wed, May 13 - Wed, Jul 22
Air Canada Logo
7:45 am - 5:15 am
STL
-
HKG
56h 30m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$895Air Canada
Mon, Apr 6 - Thu, May 7
Air Canada Logo
2:20 pm - 5:10 am
STL
-
HKG
49h 50m
2 stops
Air Canada Logo
9:45 am - 3:46 pm
HKG
-
STL
43h 01m
2 stops
$900Air Canada
Tue, May 12 - Tue, Jun 23
Air Canada Logo
2:20 pm - 5:10 am
STL
-
HKG
49h 50m
2 stops
Air Canada Logo
9:45 am - 8:05 pm
HKG
-
STL
47h 20m
2 stops
$905Air Canada
Tue, May 12 - Mon, Jun 22

Cathay Pacific flights from St. Louis to Hong Kong

Our best Cathay Pacific deals on St. Louis to Hong Kong flight tickets
Cathay Pacific
Aug 12
STL6:30 amLambert-St Louis
23h 25m
1 stop
HKG6:55 pmHong Kong Intl
Aug 26
HKG4:05 pmHong Kong Intl
19h 58m
1 stop
STL11:03 pmLambert-St Louis
$1,113
Cathay Pacific
Apr 24
STL8:03 pmLambert-St Louis
35h 57m
1 stop
HKG9:00 pmHong Kong Intl
May 4
HKG4:05 pmHong Kong Intl
19h 54m
1 stop
STL10:59 pmLambert-St Louis
$1,155
Cathay Pacific
May 12
STL6:21 amLambert-St Louis
23h 34m
1 stop
HKG6:55 pmHong Kong Intl
Jun 17
HKG12:10 pmHong Kong Intl
20h 09m
1 stop
STL7:19 pmLambert-St Louis
$1,168

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
STL10:00 amLambert-St Louis
30h 15m
2 stops
HKG5:15 amHong Kong Intl
May 5
HKG9:45 amHong Kong Intl
24h 23m
2 stops
STL9:08 pmLambert-St Louis
$854
Air Canada
Apr 6
STL7:45 amLambert-St Louis
56h 30m
2 stops
HKG5:15 amHong Kong Intl
May 7
HKG9:45 amHong Kong Intl
48h 23m
2 stops
STL9:08 pmLambert-St Louis
$884
Air Canada
Apr 6
STL4:05 pmLambert-St Louis
48h 10m
2 stops
HKG5:15 amHong Kong Intl
Apr 14
HKG9:45 amHong Kong Intl
42h 39m
2 stops
STL3:24 pmLambert-St Louis
$885

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 February 23, 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 4/7

7:00 am-5:15 am

2 stops33h 15m

Hong Kong Intl

Tue 4/14

9:45 am-11:59 pm

2 stops27h 14m

$654

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Fri 4/24

4:05 pm-5:15 am

2 stops24h 10m

Hong Kong Intl

Mon 5/4

9:45 am-12:06 pm

2 stops39h 21m

$836

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Fri 4/24

4:05 pm-5:15 am

2 stops24h 10m

Hong Kong Intl

Sun 5/3

9:45 am-12:06 pm

2 stops39h 21m

$851

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 4/28

10:00 am-5:15 am

2 stops30h 15m

Hong Kong Intl

Tue 5/5

9:45 am-9:08 pm

2 stops24h 23m

$854

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

7:45 am-5:15 am

2 stops56h 30m

Hong Kong Intl

Thu 5/7

9:45 am-9:08 pm

2 stops48h 23m

$884

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

4:05 pm-5:15 am

2 stops48h 10m

Hong Kong Intl

Tue 4/14

9:45 am-3:24 pm

2 stops42h 39m

$885

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Wed 5/13

1:00 pm-5:10 am

2 stops51h 10m

Hong Kong Intl

Wed 7/22

9:45 am-2:02 pm

2 stops41h 17m

$887

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Mon 4/6

7:45 am-5:15 am

2 stops56h 30m

Hong Kong Intl

Thu 5/7

9:45 am-8:05 pm

2 stops47h 20m

$895

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

2:20 pm-5:10 am

2 stops49h 50m

Hong Kong Intl

Tue 6/23

9:45 am-3:46 pm

2 stops43h 01m

$900

St. LouisHong Kong

STL - HKG

STLHKG

Lambert-St Louis

Tue 5/12

2:20 pm-5:10 am

2 stops49h 50m

Hong Kong Intl

Mon 6/22

9:45 am-8:05 pm

2 stops47h 20m

$905

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $944. The month of February is another great option to travel to Hong Kong, with average flight prices from St. Louis averaging around $1,043.

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

You could potentially save up to 66% 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

Fastest flight time

20h 37m

Direct flights

None
The fastest flight from St. Louis to Hong Kong takes 20h 37m
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
United AirlinesPriceFrom $1,000Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights
Cathay PacificPriceFrom $1,166Free CancellationRating
7.6
1,178 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.

An easier way to manage your Hong Kong trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/25
Wed 4/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Hong Kong

Popular cities in Hong Kong

Popular flights according to clicks in the last 7 days on momondo
Flights to Hong Kongfrom $449