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Cheap flights from South Korea to St. Louis from $559

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 6/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
56h 21m
2 stops
Air Canada Logo
7:05 am - 4:05 pm
STL
-
ICN
43h 00m
2 stops
$858Air Canada
Wed, May 6 - Wed, May 20
Air Canada Logo
5:45 pm - 8:25 pm
ICN
-
STL
40h 40m
2 stops
Air Canada Logo
7:05 am - 4:05 pm
STL
-
ICN
43h 00m
2 stops
$952Air Canada
Sun, May 10 - Sun, May 17
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
7:05 am - 5:30 pm
STL
-
ICN
20h 25m
1 stop
$1,173Air Canada
Tue, May 12 - Tue, May 19
Multiple Airlines Logo
9:00 pm - 11:59 pm
ICN
-
STL
16h 59m
1 stop
Multiple Airlines Logo
7:41 pm - 5:15 am
STL
-
ICN
19h 34m
1 stop
$1,174Multiple Airlines
Tue, May 12 - Tue, May 19
Multiple Airlines Logo
9:00 pm - 1:55 pm
ICN
-
STL
30h 55m
1 stop
Multiple Airlines Logo
7:56 pm - 4:45 am
STL
-
ICN
18h 49m
1 stop
$1,211Multiple Airlines
Thu, Jul 16 - Tue, Jul 21
Korean Air Logo
8:00 am - 1:17 pm
PUS
-
STL
19h 17m
2 stops
Korean Air Logo
6:30 am - 7:35 pm
STL
-
PUS
23h 05m
2 stops
$1,216Korean Air
Tue, Sep 15 - Sat, Sep 19
Korean Air Logo
8:00 am - 1:17 pm
PUS
-
STL
19h 17m
2 stops
Korean Air Logo
6:30 am - 7:35 pm
STL
-
PUS
23h 05m
2 stops
$1,221Korean Air
Tue, Sep 15 - Sat, Sep 19
Alaska Airlines Logo
7:35 pm - 11:59 pm
ICN
-
STL
18h 24m
1 stop
Alaska Airlines Logo
7:41 pm - 5:30 pm
STL
-
ICN
31h 49m
1 stop
$1,303Alaska Airlines
Wed, May 6 - Wed, May 20
Japan Airlines Logo
8:00 am - 11:59 pm
GMP
-
STL
29h 59m
2 stops
Japan Airlines Logo
6:21 am - 9:15 pm
STL
-
GMP
24h 54m
2 stops
$1,338Japan Airlines
Tue, May 12 - Tue, May 19
Japan Airlines Logo
12:05 pm - 11:57 pm
GMP
-
STL
25h 52m
2 stops
Japan Airlines Logo
8:54 am - 9:15 pm
STL
-
GMP
22h 21m
2 stops
$2,374Japan Airlines
Sat, Apr 11 - Tue, Apr 21

Delta flights from South Korea to St. Louis

Our best Delta deals on South Korea to St. Louis flight tickets
Delta
Apr 15
ICN7:20 pmIncheon Intl
19h 05m
1 stop
STL12:25 amLambert-St Louis
Apr 22
STL6:20 amLambert-St Louis
20h 20m
2 stops
ICN4:40 pmIncheon Intl
$1,388
Delta
Apr 14
ICN7:20 pmIncheon Intl
19h 05m
1 stop
STL12:25 amLambert-St Louis
Apr 21
STL6:20 amLambert-St Louis
20h 30m
2 stops
ICN4:50 pmIncheon Intl
$1,396
Delta
Apr 13
ICN7:20 pmIncheon Intl
19h 05m
1 stop
STL12:25 amLambert-St Louis
Apr 19
STL6:20 amLambert-St Louis
20h 30m
2 stops
ICN4:50 pmIncheon Intl
$1,504

American Airlines flights from South Korea to St. Louis

Our best American Airlines deals on South Korea to St. Louis flight tickets
American Airlines
Jun 20
ICN5:50 pmIncheon Intl
20h 09m
1 stop
STL11:59 pmLambert-St Louis
Jul 5
STL7:26 pmLambert-St Louis
30h 19m
1 stop
ICN3:45 pmIncheon Intl
$1,427
American Airlines
Jun 20
ICN5:50 pmIncheon Intl
20h 04m
2 stops
STL11:54 pmLambert-St Louis
Jul 5
STL5:18 pmLambert-St Louis
32h 27m
1 stop
ICN3:45 pmIncheon Intl
$1,431
American Airlines
Jun 20
ICN5:50 pmIncheon Intl
20h 09m
1 stop
STL11:59 pmLambert-St Louis
Jul 5
STL7:26 pmLambert-St Louis
30h 19m
1 stop
ICN3:45 pmIncheon Intl
$1,435

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 March 30, 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

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Wed 5/6

5:45 pm-12:06 pm

2 stops56h 21m

Lambert-St Louis

Wed 5/20

7:05 am-4:05 pm

2 stops43h 00m

$858

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sun 5/10

5:45 pm-8:25 pm

2 stops40h 40m

Lambert-St Louis

Sun 5/17

7:05 am-4:05 pm

2 stops43h 00m

$952

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 5/12

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Tue 5/19

7:05 am-5:30 pm

1 stop20h 25m

$1,173
Quickest round-trip

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 5/12

9:00 pm-11:59 pm

1 stop16h 59m

Lambert-St Louis

Tue 5/19

7:41 pm-5:15 am

1 stop19h 34m

$1,174

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 7/16

9:00 pm-1:55 pm

1 stop30h 55m

Lambert-St Louis

Tue 7/21

7:56 pm-4:45 am

1 stop18h 49m

$1,211

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Tue 9/15

8:00 am-1:17 pm

2 stops19h 17m

Lambert-St Louis

Sat 9/19

6:30 am-7:35 pm

2 stops23h 05m

$1,216

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Tue 9/15

8:00 am-1:17 pm

2 stops19h 17m

Lambert-St Louis

Sat 9/19

6:30 am-7:35 pm

2 stops23h 05m

$1,221

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Wed 5/6

7:35 pm-11:59 pm

1 stop18h 24m

Lambert-St Louis

Wed 5/20

7:41 pm-5:30 pm

1 stop31h 49m

$1,303

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Tue 5/12

8:00 am-11:59 pm

2 stops29h 59m

Lambert-St Louis

Tue 5/19

6:21 am-9:15 pm

2 stops24h 54m

$1,338

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

12:05 pm-11:57 pm

2 stops25h 52m

Lambert-St Louis

Tue 4/21

8:54 am-9:15 pm

2 stops22h 21m

$2,374

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

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

You could potentially save up to 40% 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

16h 59m

Direct flights

None
The fastest flight from South Korea to St. Louis takes 16h 59m
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

  • 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
American AirlinesPriceFrom $568Free CancellationRating
7.1
11,530 reviews
Search American Airlines flights
DeltaPriceFrom $630Free CancellationRating
7.9
8,358 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
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
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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