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Cheap flights from South Korea to St. Louis from $444

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 5/22. 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.
Asiana Airlines Logo
5:45 pm - 8:05 pm
ICN
-
STL
40h 20m
2 stops
Asiana Airlines Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$661Asiana Airlines
Mon, May 4 - Thu, May 28
Air Canada Logo
5:45 pm - 8:05 pm
ICN
-
STL
40h 20m
2 stops
Air Canada Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$666Air Canada
Tue, May 5 - Thu, May 28
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$671Air Canada
Thu, May 21 - Sun, Jun 14
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
7:30 am - 4:05 pm
STL
-
ICN
42h 35m
2 stops
$676Air Canada
Mon, May 4 - Tue, May 26
Asiana Airlines Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Asiana Airlines Logo
7:30 am - 5:30 pm
STL
-
ICN
20h 00m
1 stop
$681Asiana Airlines
Mon, May 4 - Fri, May 29
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
7:30 am - 5:30 pm
STL
-
ICN
20h 00m
1 stop
$686Air Canada
Mon, May 4 - Fri, May 29
Japan Airlines Logo
8:00 am - 11:01 am
GMP
-
STL
18h 01m
2 stops
Japan Airlines Logo
7:00 am - 10:05 pm
STL
-
GMP
25h 05m
2 stops
$1,361Japan Airlines
Thu, Mar 5 - Thu, Mar 12
Japan Airlines Logo
7:15 pm - 11:59 pm
GMP
-
STL
42h 44m
2 stops
Japan Airlines Logo
8:53 am - 10:40 am
STL
-
GMP
35h 47m
2 stops
$1,404Japan Airlines
Sat, Apr 11 - Tue, Apr 21
Multiple Airlines Logo
12:05 pm - 7:30 pm
GMP
-
STL
21h 25m
2 stops
Multiple Airlines Logo
8:54 am - 9:15 pm
STL
-
GMP
22h 21m
2 stops
$1,430Multiple Airlines
Sat, Apr 11 - Tue, Apr 21
Multiple Airlines Logo
12:05 pm - 7:30 pm
GMP
-
STL
21h 25m
2 stops
Multiple Airlines Logo
8:54 am - 9:15 pm
STL
-
GMP
22h 21m
2 stops
$1,449Multiple Airlines
Sat, Apr 11 - Tue, Apr 21

Air Canada flights from South Korea to St. Louis

Our best Air Canada deals on South Korea to St. Louis flight tickets
Air Canada
May 5
ICN5:45 pmIncheon Intl
40h 20m
2 stops
STL8:05 pmLambert-St Louis
May 28
STL1:00 pmLambert-St Louis
37h 05m
2 stops
ICN4:05 pmIncheon Intl
$666
Air Canada
May 21
ICN5:45 pmIncheon Intl
32h 21m
2 stops
STL12:06 pmLambert-St Louis
Jun 14
STL1:00 pmLambert-St Louis
37h 05m
2 stops
ICN4:05 pmIncheon Intl
$671
Air Canada
May 4
ICN5:45 pmIncheon Intl
32h 21m
2 stops
STL12:06 pmLambert-St Louis
Jun 1
STL7:30 amLambert-St Louis
42h 35m
2 stops
ICN4:05 pmIncheon Intl
$676

United Airlines flights from South Korea to St. Louis

Our best United Airlines deals on South Korea to St. Louis flight tickets
United Airlines
Feb 5
ICN12:45 pmIncheon Intl
17h 52m
1 stop
STL3:37 pmLambert-St Louis
Feb 9
STL5:00 pmLambert-St Louis
21h 40m
1 stop
ICN5:40 amIncheon Intl
$1,355
United Airlines
Feb 5
ICN12:45 pmIncheon Intl
17h 52m
1 stop
STL3:37 pmLambert-St Louis
Feb 9
STL5:00 pmLambert-St Louis
21h 40m
1 stop
ICN5:40 amIncheon Intl
$1,358
United Airlines
Feb 5
ICN12:45 pmIncheon Intl
17h 52m
1 stop
STL3:37 pmLambert-St Louis
Feb 9
STL5:00 pmLambert-St Louis
21h 40m
1 stop
ICN5:40 amIncheon Intl
$1,361

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 February 4, 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

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 5/4

5:45 pm-8:05 pm

2 stops40h 20m

Lambert-St Louis

Thu 5/28

1:00 pm-4:05 pm

2 stops37h 05m

$661

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 5/5

5:45 pm-8:05 pm

2 stops40h 20m

Lambert-St Louis

Thu 5/28

1:00 pm-4:05 pm

2 stops37h 05m

$666

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 5/21

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Sun 6/14

1:00 pm-4:05 pm

2 stops37h 05m

$671

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 5/4

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Tue 5/26

7:30 am-4:05 pm

2 stops42h 35m

$676

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 5/4

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Fri 5/29

7:30 am-5:30 pm

1 stop20h 00m

$681

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 5/4

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Fri 5/29

7:30 am-5:30 pm

1 stop20h 00m

$686

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 3/5

8:00 am-11:01 am

2 stops18h 01m

Lambert-St Louis

Thu 3/12

7:00 am-10:05 pm

2 stops25h 05m

$1,361

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:15 pm-11:59 pm

2 stops42h 44m

Lambert-St Louis

Tue 4/21

8:53 am-10:40 am

2 stops35h 47m

$1,404

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

12:05 pm-7:30 pm

2 stops21h 25m

Lambert-St Louis

Tue 4/21

8:54 am-9:15 pm

2 stops22h 21m

$1,430

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

12:05 pm-7:30 pm

2 stops21h 25m

Lambert-St Louis

Tue 4/21

8:54 am-9:15 pm

2 stops22h 21m

$1,449

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 13% 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

17h 24m

Direct flights

None
The fastest flight from South Korea to St. Louis takes 17h 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

  • 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
7.2
11,216 reviews
Search American Airlines flights
DeltaPriceFrom $630Free CancellationRating
7.9
8,138 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
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

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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