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Cheap flights from South Korea to St. Louis from $575

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to St. Louis departing on 6/5. 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

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Find the cheapest flights from South Korea to St. Louis

Recent round-trip flight deals from South Korea to St. Louis

Enter your travel dates to find the best prices.
American Airlines Logo
5:50 pm - 12:14 am
ICN
-
STL
20h 24m
2 stops
American Airlines Logo
5:51 pm - 3:45 pm
STL
-
ICN
31h 54m
2 stops
$1,393American Airlines
Fri, Aug 28 - Tue, Sep 1
American Airlines Logo
5:50 pm - 11:43 pm
ICN
-
STL
19h 53m
1 stop
American Airlines Logo
3:34 pm - 3:45 pm
STL
-
ICN
34h 11m
1 stop
$1,394American Airlines
Tue, Sep 15 - Wed, Sep 16
American Airlines Logo
5:50 pm - 11:43 pm
ICN
-
STL
19h 53m
1 stop
American Airlines Logo
2:27 pm - 3:45 pm
STL
-
ICN
35h 18m
2 stops
$1,398American Airlines
Tue, Sep 15 - Wed, Sep 16
Multiple Airlines Logo
8:40 pm - 4:37 pm
ICN
-
STL
33h 57m
2 stops
Multiple Airlines Logo
6:02 am - 4:00 am
STL
-
ICN
31h 58m
1 stop
$1,437Multiple Airlines
Tue, Jun 9 - Mon, Jul 20
Multiple Airlines Logo
8:40 pm - 4:37 pm
ICN
-
STL
33h 57m
2 stops
Multiple Airlines Logo
7:56 pm - 5:30 pm
STL
-
ICN
31h 34m
1 stop
$1,452Multiple Airlines
Tue, Jun 9 - Tue, Jul 21
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
2:40 pm - 4:05 pm
STL
-
ICN
35h 25m
2 stops
$1,494Air Canada
Tue, Jun 9 - Tue, Jul 21
Multiple Airlines Logo
8:45 pm - 9:46 am
ICN
-
STL
27h 01m
2 stops
Multiple Airlines Logo
6:02 am - 4:00 am
STL
-
ICN
31h 58m
1 stop
$1,507Multiple Airlines
Thu, Jun 11 - Mon, Jul 20
ANA Logo
7:55 pm - 2:16 pm
GMP
-
STL
32h 21m
2 stops
ANA Logo
9:30 am - 11:05 am
STL
-
GMP
35h 35m
2 stops
$1,662ANA
Wed, Jul 15 - Wed, Jul 22
Japan Airlines Logo
8:00 am - 11:40 pm
GMP
-
STL
29h 40m
2 stops
Japan Airlines Logo
8:30 am - 10:40 am
STL
-
GMP
36h 10m
2 stops
$1,821Japan Airlines
Mon, Sep 14 - Wed, Sep 16
Japan Airlines Logo
8:00 am - 11:40 pm
GMP
-
STL
29h 40m
2 stops
Japan Airlines Logo
8:30 am - 10:40 am
STL
-
GMP
36h 10m
2 stops
$1,822Japan Airlines
Mon, Sep 14 - Wed, Sep 16

Japan Airlines flights from South Korea to St. Louis

Our best Japan Airlines deals on South Korea to St. Louis flight tickets
Japan Airlines
Sep 14
GMP8:00 amSeoul Gimpo Intl
29h 40m
2 stops
STL11:40 pmLambert-St Louis
Sep 16
STL8:30 amLambert-St Louis
36h 10m
2 stops
GMP10:40 amSeoul Gimpo Intl
$1,821
Japan Airlines
Sep 14
GMP8:00 amSeoul Gimpo Intl
29h 40m
2 stops
STL11:40 pmLambert-St Louis
Sep 16
STL8:30 amLambert-St Louis
36h 10m
2 stops
GMP10:40 amSeoul Gimpo Intl
$1,822
Japan Airlines
Sep 14
GMP8:00 amSeoul Gimpo Intl
29h 40m
2 stops
STL11:40 pmLambert-St Louis
Sep 16
STL8:30 amLambert-St Louis
22h 45m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,827

American Airlines flights from South Korea to St. Louis

Our best American Airlines deals on South Korea to St. Louis flight tickets
American Airlines
Aug 28
ICN5:50 pmIncheon Intl
20h 24m
2 stops
STL12:14 amLambert-St Louis
Sep 1
STL5:51 pmLambert-St Louis
31h 54m
2 stops
ICN3:45 pmIncheon Intl
$1,393
American Airlines
Sep 15
ICN5:50 pmIncheon Intl
19h 53m
1 stop
STL11:43 pmLambert-St Louis
Sep 16
STL3:34 pmLambert-St Louis
34h 11m
1 stop
ICN3:45 pmIncheon Intl
$1,394
American Airlines
Sep 15
ICN5:50 pmIncheon Intl
19h 53m
1 stop
STL11:43 pmLambert-St Louis
Sep 16
STL2:27 pmLambert-St Louis
35h 18m
2 stops
ICN3:45 pmIncheon Intl
$1,398

momondo Fare Finder

 
Customize your flight search to find flights from South Korea to St. Louis 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 May 31, 2026.
Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Fri 8/28

5:50 pm-12:14 am

2 stops20h 24m

Lambert-St Louis

Tue 9/1

5:51 pm-3:45 pm

2 stops31h 54m

$1,393

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 9/15

5:50 pm-11:43 pm

1 stop19h 53m

Lambert-St Louis

Wed 9/16

3:34 pm-3:45 pm

1 stop34h 11m

$1,394

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 9/15

5:50 pm-11:43 pm

1 stop19h 53m

Lambert-St Louis

Wed 9/16

2:27 pm-3:45 pm

2 stops35h 18m

$1,398

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 6/9

8:40 pm-4:37 pm

2 stops33h 57m

Lambert-St Louis

Mon 7/20

6:02 am-4:00 am

1 stop31h 58m

$1,437

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 6/9

8:40 pm-4:37 pm

2 stops33h 57m

Lambert-St Louis

Tue 7/21

7:56 pm-5:30 pm

1 stop31h 34m

$1,452

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 6/9

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Tue 7/21

2:40 pm-4:05 pm

2 stops35h 25m

$1,494

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 6/11

8:45 pm-9:46 am

2 stops27h 01m

Lambert-St Louis

Mon 7/20

6:02 am-4:00 am

1 stop31h 58m

$1,507

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Wed 7/15

7:55 pm-2:16 pm

2 stops32h 21m

Lambert-St Louis

Wed 7/22

9:30 am-11:05 am

2 stops35h 35m

$1,662

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 9/14

8:00 am-11:40 pm

2 stops29h 40m

Lambert-St Louis

Wed 9/16

8:30 am-10:40 am

2 stops36h 10m

$1,821

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 9/14

8:00 am-11:40 pm

2 stops29h 40m

Lambert-St Louis

Wed 9/16

8:30 am-10:40 am

2 stops36h 10m

$1,822

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 St. Louis from

How to get the cheapest flight ticket from South Korea to St. Louis

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 St. Louis?

In general, April is the cheapest month to fly from South Korea to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of October is another great option to travel to St. Louis, with average flight prices from South Korea averaging around $498.

Can stopping save me money on South Korea to St. Louis flights?

You could potentially save up to 6% on your flight if you consider stops on a South Korea to St. Louis flight.

Cheap South Korea to St. Louis flight deals and tips

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

Fastest flight time

18h 24m

Direct flights

None
The fastest flight from South Korea to St. Louis takes 18h 24m
There are no direct flights from South Korea to St. Louis. There are no popular flight routes from South Korea to St. Louis.
Search flight deals

Frequently asked questions about flying from South Korea to St. Louis

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

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

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

  • How old do you have to be to fly from South Korea to Lambert-St Louis 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 South Korea to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from South Korea to St. Louis

Compare and see reviews for airlines that fly from South Korea to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $630Free CancellationRating
7.9
8,412 reviews
Search Delta flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Eureka
Litchfield
Clayton
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from South Korea to St. Louis?

It is quick and easy to find South Korea to St. Louis 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 St. Louis that suits you.

Can I find flights from South Korea to St. Louis with flexible booking policies on momondo?

All flight searches from South Korea to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from South Korea to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from South Korea. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from South Korea to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from South Korea to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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