$545+ Cheap flights from Seoul (SEL) to St. Louis (STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — STL
Jul 27 — Aug 31
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seoul to St. Louis
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Best
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One-way
Cheapest flights from Seoul to St. LouisExplore the most affordable flight options available from Seoul to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
Explore the most affordable flight options available from Seoul to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 pm
ICN
- STL
1 stop18h 54m
American Airlines
Wed 11/255:17 am
STL
- ICN
1 stop20h 08m
American Airlines
Deal found 6/24![American Airlines logo]()
$1,106
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:35 pm
ICN
- STL
2 stops28h 52m
American Airlines
Mon 11/165:17 am
STL
- ICN
1 stop20h 08m
American Airlines
Deal found 6/24![American Airlines logo]()
$1,243
This American Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:35 pm
ICN
- STL
1 stop18h 54m
American Airlines
Sun 11/226:45 pm
STL
- ICN
2 stops30h 40m
American Airlines
Deal found 6/26![American Airlines logo]()
$1,246
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:45 pm
ICN
- STL
2 stops20h 51m
Delta
Wed 11/257:30 am
STL
- ICN
2 stops19h 25m
Delta
Deal found 6/24![Delta logo]()
$1,251
This EVA Air deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:45 pm
ICN
- STL
3 stops34h 00m
Multiple Airlines
Wed 11/253:24 pm
STL
- ICN
2 stops28h 06m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,486
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:45 pm
ICN
- STL
2 stops34h 17m
Air Canada
Sun 7/122:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,491
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:05 pm
ICN
- STL
2 stops27h 34m
Air Canada
Sat 7/252:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,579
This Japan Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:05 pm
GMP
- STL
2 stops46h 22m
Japan Airlines
Sun 11/227:00 am
STL
- GMP
2 stops44h 20m
Japan Airlines
Deal found 6/25![Japan Airlines logo]()
$1,749
This FlightHub deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:40 am
GMP
- STL
2 stops24h 33m
ANA
Fri 12/117:33 am
STL
- GMP
2 stops23h 57m
ANA
Deal found 6/23![ANA logo]()
$4,888
Best flights from Seoul to St. LouisDiscover carefully curated flight deals from Seoul to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
Discover carefully curated flight deals from Seoul to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:35 pm
ICN
- STL
2 stops20h 21m
American Airlines
Mon 11/167:58 pm
STL
- ICN
2 stops29h 27m
American Airlines
Deal found 6/24![American Airlines logo]()
$1,243
This Japan Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:05 pm
GMP
- STL
2 stops46h 22m
Japan Airlines
Sun 11/227:00 am
STL
- GMP
2 stops44h 20m
Japan Airlines
Deal found 6/25![Japan Airlines logo]()
$1,749
This American Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:35 pm
ICN
- STL
1 stop18h 54m
American Airlines
Sun 11/2211:39 am
STL
- ICN
1 stop37h 46m
American Airlines
Deal found 6/25![American Airlines logo]()
$1,243
This FlightHub deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:40 am
GMP
- STL
2 stops24h 33m
ANA
Fri 12/117:33 am
STL
- GMP
2 stops23h 57m
ANA
Deal found 6/23![ANA logo]()
$4,888
Last-minute flights from Seoul to St. LouisDiscover last-minute flight deals from Seoul to St. Louis. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to St. Louis. Data last updated June 27, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:45 pm
ICN
- STL
2 stops34h 17m
Air Canada
Sun 7/122:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,491
This Mytrip deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:15 pm
ICN
- STL
3 stops35h 42m
Multiple Airlines
Sun 7/1212:10 pm
STL
- ICN
2 stops37h 55m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$2,017
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:05 pm
ICN
- STL
2 stops27h 34m
Air Canada
Sat 7/252:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,579
This Mytrip deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:45 pm
ICN
- STL
3 stops31h 17m
Multiple Airlines
Sat 7/258:55 am
STL
- ICN
2 stops24h 10m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$2,004
This EVA Air deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1812:00 pm
ICN
- STL
2 stops37h 10m
Multiple Airlines
Sat 7/257:56 pm
STL
- ICN
2 stops25h 04m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,655
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:05 pm
ICN
- STL
1 stop32h 57m
Air Canada
Sat 7/258:55 am
STL
- ICN
1 stop18h 35m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,838
One-way flights from Seoul to St. LouisSearch for one-way flight options from Seoul to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
Search for one-way flight options from Seoul to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:35 pm
ICN
- STL
3 stops49h 05m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:35 pm
ICN
- STL
3 stops58h 05m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:10 pm
ICN
- STL
3 stops50h 30m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$597
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:20 am
ICN
- STL
3 stops40h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$606
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:20 am
ICN
- STL
3 stops40h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:20 am
ICN
- STL
3 stops46h 51m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$612
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:30 pm
ICN
- STL
3 stops53h 21m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:30 pm
ICN
- STL
3 stops57h 41m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$614
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:20 am
ICN
- STL
3 stops48h 30m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:30 pm
ICN
- STL
3 stops57h 41m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$636
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:20 am
ICN
- STL
3 stops40h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$646
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:50 pm
GMP
- STL
3 stops51h 50m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$652
Find flight deals from Seoul to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,106 (American Airlines) |
One-way from | $545 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul 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, Cheapflights users made 2,558,603 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from Seoul to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Thu 11/12
6:35 pm-11:56 pm
2 stops20h 21m
Lambert-St Louis
Mon 11/16
7:58 pm-4:25 pm
2 stops29h 27m
$1,243
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Thu 11/19
6:35 pm-10:29 pm
1 stop18h 54m
Lambert-St Louis
Sun 11/22
11:39 am-4:25 pm
1 stop37h 46m
$1,243
SeoulSt. Louis
GMP - STL
GMPSTL
Seoul Gimpo Intl
Thu 11/19
12:05 pm-7:27 pm
2 stops46h 22m
Lambert-St Louis
Sun 11/22
7:00 am-6:20 pm
2 stops44h 20m
$1,749
Quickest round-trip
SeoulSt. Louis
GMP - STL
GMPSTL
Seoul Gimpo Intl
Sat 8/1
7:40 am-6:13 pm
2 stops24h 33m
Lambert-St Louis
Fri 12/11
7:33 am-10:30 pm
2 stops23h 57m
$4,888
Cheapest one-way
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Sun 8/9
10:35 pm-7:23 pm
3 stops58h 48m
$711
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Sun 8/16
8:10 am-6:15 pm
3 stops48h 05m
$719
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Tue 10/6
1:00 pm-11:59 pm
2 stops24h 59m
$838
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Tue 8/18
1:00 pm-5:50 pm
2 stops42h 50m
$895
SeoulSt. Louis
GMP - STL
GMPSTL
Seoul Gimpo Intl
Mon 8/10
8:10 am-11:59 pm
3 stops53h 49m
$897
SeoulSt. Louis
GMP - STL
GMPSTL
Seoul Gimpo Intl
Sun 8/16
12:40 pm-6:15 pm
3 stops43h 35m
$914
Showing 1-10 of 28 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Seoul-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seoul-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seoul to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Seoul with our price prediction graph.
SEL-STL
ICN-STL
GMP-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seoul to St. Louis
SEL-STL
ICN-STL
GMP-STL
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Seoul to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
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