$549+ Cheap flights from St. Louis (STL) to South Korea
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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to South Korea 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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Cheapest flights from St. Louis to South KoreaExplore the most affordable flight options available from St. Louis to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
Explore the most affordable flight options available from St. Louis to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
This Cathay Pacific deal was found by Cheapflights users on 5/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
STL
- ICN
2 stops28h 25m
Multiple Airlines
Mon 8/318:00 am
ICN
- STL
2 stops28h 55m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,183
This Cathay Pacific deal was found by Cheapflights users on 5/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
STL
- ICN
2 stops28h 25m
Multiple Airlines
Sat 9/128:00 am
ICN
- STL
2 stops29h 02m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,233
This KAYAK deal was found by Cheapflights users on 5/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:31 am
STL
- ICN
2 stops37h 09m
Cathay Pacific
Sat 9/128:00 am
ICN
- STL
2 stops26h 03m
Cathay Pacific
Deal found 5/20![Cathay Pacific logo]()
$1,243
This Qatar Airways deal was found by Cheapflights users on 5/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:00 am
STL
- ICN
2 stops44h 15m
Qatar Airways
Fri 11/2012:20 am
ICN
- STL
2 stops38h 39m
Qatar Airways
Deal found 5/20![Qatar Airways logo]()
$1,251
This Air Canada deal was found by Cheapflights users on 5/22. 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.
Tue 8/118:55 am
STL
- ICN
1 stop18h 35m
Air Canada
Tue 8/187:05 pm
ICN
- STL
1 stop32h 57m
Air Canada
Deal found 5/22![Air Canada logo]()
$1,260
This Cathay Pacific deal was found by Cheapflights users on 5/19. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:11 pm
STL
- ICN
2 stops30h 54m
Multiple Airlines
Sun 9/133:10 pm
ICN
- STL
2 stops44h 50m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,278
This Qatar Airways deal was found by Cheapflights users on 5/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am
STL
- ICN
2 stops44h 15m
Qatar Airways
Sun 11/812:20 am
ICN
- STL
2 stops38h 36m
Qatar Airways
Deal found 5/21![Qatar Airways logo]()
$1,287
This Air Canada deal was found by Cheapflights users on 5/20. 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.
Wed 9/212:10 pm
STL
- ICN
1 stop38h 15m
Air Canada
Sat 9/127:05 pm
ICN
- STL
1 stop32h 55m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,297
This Air Canada deal was found by Cheapflights users on 5/19. 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.
Sun 9/62:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Sun 9/137:05 pm
ICN
- STL
1 stop32h 55m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,302
This Cathay Pacific deal was found by Cheapflights users on 5/22. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am
STL
- ICN
2 stops27h 55m
Multiple Airlines
Sun 10/257:35 pm
ICN
- STL
2 stops41h 30m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$1,318
This Justfly.com deal was found by Cheapflights users on 5/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:40 pm
STL
- GMP
2 stops35h 20m
Multiple Airlines
Sat 11/211:50 pm
GMP
- STL
2 stops49h 09m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,346
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Thu 10/154:40 pm
STL
- GMP
2 stops30h 10m
Multiple Airlines
Sat 10/311:50 pm
GMP
- STL
2 stops49h 06m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,384
Best flights from St. Louis to South KoreaDiscover carefully curated flight deals from St. Louis to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
Discover carefully curated flight deals from St. Louis to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
This Cathay Pacific deal was found by Cheapflights users on 5/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
STL
- ICN
2 stops28h 25m
Multiple Airlines
Mon 8/318:00 am
ICN
- STL
2 stops28h 55m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,183
This Qatar Airways deal was found by Cheapflights users on 5/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:00 am
STL
- ICN
2 stops44h 15m
Qatar Airways
Fri 11/2012:20 am
ICN
- STL
2 stops38h 39m
Qatar Airways
Deal found 5/20![Qatar Airways logo]()
$1,251
This Air Canada deal was found by Cheapflights users on 5/22. 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.
Tue 8/118:55 am
STL
- ICN
1 stop18h 35m
Air Canada
Tue 8/187:05 pm
ICN
- STL
1 stop32h 57m
Air Canada
Deal found 5/22![Air Canada logo]()
$1,260
This Delta deal was found by Cheapflights users on 5/21. 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.
Thu 10/1511:51 am
STL
- ICN
1 stop26h 09m
Delta
Sat 10/319:35 am
ICN
- STL
1 stop17h 45m
Delta
Deal found 5/21![Delta logo]()
$1,420
This Japan Airlines deal was found by Cheapflights users on 5/19. 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 11/127:00 am
STL
- GMP
2 stops36h 55m
Japan Airlines
Mon 11/167:40 pm
GMP
- STL
2 stops33h 07m
Japan Airlines
Deal found 5/19![Japan Airlines logo]()
$1,557
This Korean Air deal was found by Cheapflights users on 5/18. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:05 pm
STL
- TAE
2 stops34h 50m
Korean Air
Wed 9/97:55 am
TAE
- STL
2 stops22h 02m
Korean Air
Deal found 5/18![Korean Air logo]()
$1,808
This Qatar Airways deal was found by Cheapflights users on 5/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am
STL
- ICN
2 stops44h 15m
Qatar Airways
Sun 11/812:20 am
ICN
- STL
2 stops38h 36m
Qatar Airways
Deal found 5/21![Qatar Airways logo]()
$1,287
This Cathay Pacific deal was found by Cheapflights users on 5/21. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:33 pm
STL
- ICN
2 stops31h 07m
Multiple Airlines
Sat 10/241:55 am
ICN
- STL
2 stops32h 13m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,368
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 7/281:22 pm
STL
- ICN
1 stop24h 38m
Delta
Tue 8/187:20 pm
ICN
- STL
1 stop19h 21m
Delta
Deal found 5/17![Delta logo]()
$1,420
This FlightHub deal was found by Cheapflights users on 5/19. 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 6/61:05 pm
STL
- ICN
2 stops61h 00m
Air Canada
Mon 6/157:05 pm
ICN
- STL
1 stop39h 04m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,483
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Thu 10/154:40 pm
STL
- GMP
2 stops30h 10m
Multiple Airlines
Sat 10/311:50 pm
GMP
- STL
2 stops49h 06m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$1,384
This Delta deal was found by Cheapflights users on 5/19. 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.
Sat 8/16:04 pm
STL
- ICN
1 stop32h 21m
Delta
Sat 8/227:20 pm
ICN
- STL
1 stop15h 40m
Delta
Deal found 5/19![Delta logo]()
$1,426
This KAYAK deal was found by Cheapflights users on 5/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:38 am
STL
- GMP
2 stops22h 37m
Japan Airlines
Thu 8/208:00 am
GMP
- STL
2 stops22h 24m
Japan Airlines
Deal found 5/21![Japan Airlines logo]()
$1,599
This Delta deal was found by Cheapflights users on 5/18. 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 10/165:30 pm
STL
- ICN
1 stop20h 30m
Delta
Sun 10/258:35 pm
ICN
- STL
1 stop16h 43m
Delta
Deal found 5/18![Delta logo]()
$1,468
This Korean Air deal was found by Cheapflights users on 5/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:05 pm
STL
- PUS
2 stops22h 05m
Korean Air
Mon 11/94:10 pm
PUS
- STL
2 stops22h 29m
Korean Air
Deal found 5/17![Korean Air logo]()
$1,811
This Japan Airlines deal was found by Cheapflights users on 5/22. 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.
Wed 9/99:46 am
STL
- GMP
2 stops21h 29m
Japan Airlines
Mon 9/148:00 am
GMP
- STL
2 stops20h 25m
Japan Airlines
Deal found 5/22![Japan Airlines logo]()
$1,671
This Travelocity deal was found by Cheapflights users on 5/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:40 am
STL
- GMP
2 stops23h 45m
Multiple Airlines
Tue 6/238:40 am
GMP
- STL
2 stops25h 27m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,656
This Ovago deal was found by Cheapflights users on 5/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:36 am
STL
- GMP
2 stops22h 39m
Japan Airlines
Tue 8/187:15 pm
GMP
- STL
2 stops35h 09m
Japan Airlines
Deal found 5/17![Japan Airlines logo]()
$1,785
This KAYAK deal was found by Cheapflights users on 5/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:30 am
STL
- GMP
2 stops23h 35m
Japan Airlines
Mon 11/912:05 pm
GMP
- STL
2 stops26h 37m
Japan Airlines
Deal found 5/21![Japan Airlines logo]()
$1,789
This KAYAK deal was found by Cheapflights users on 5/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:38 am
STL
- GMP
2 stops22h 37m
Japan Airlines
Wed 8/128:00 am
GMP
- STL
2 stops22h 24m
Japan Airlines
Deal found 5/22![Japan Airlines logo]()
$1,794
This oojo deal was found by Cheapflights users on 5/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:35 am
STL
- CJU
2 stops39h 55m
Multiple Airlines
Sun 6/144:00 pm
CJU
- STL
2 stops45h 56m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$14,511
Last-minute flights from St. Louis to South KoreaDiscover last-minute flight deals from St. Louis to South Korea. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to South Korea. Data last updated May 22, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/19. 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.
Mon 6/12:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
Wed 6/246:00 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,481
This Air Canada deal was found by Cheapflights users on 5/18. 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.
Mon 6/12:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
Tue 6/95:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,485
This Air Canada deal was found by Cheapflights users on 5/19. 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.
Wed 6/32:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
Thu 6/117:05 pm
ICN
- STL
1 stop31h 01m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,478
This Justfly.com deal was found by Cheapflights users on 5/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:05 pm
STL
- ICN
2 stops61h 00m
Air Canada
Mon 6/155:45 pm
ICN
- STL
2 stops64h 40m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,479
This Air Canada deal was found by Cheapflights users on 5/22. 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.
Sun 6/71:05 pm
STL
- ICN
2 stops37h 00m
Air Canada
Mon 6/155:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 5/22![Air Canada logo]()
$1,473
This Travelocity deal was found by Cheapflights users on 5/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/141:05 pm
STL
- ICN
1 stop37h 20m
Air Canada
Sun 6/216:00 pm
ICN
- STL
1 stop40h 25m
Air Canada
Deal found 5/17![Air Canada logo]()
$1,511
This Travelocity deal was found by Cheapflights users on 5/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:40 am
STL
- GMP
2 stops23h 45m
Multiple Airlines
Tue 6/238:40 am
GMP
- STL
2 stops25h 27m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,656
This Expedia deal was found by Cheapflights users on 5/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:40 am
STL
- GMP
2 stops23h 45m
Multiple Airlines
Mon 7/68:40 am
GMP
- STL
2 stops25h 27m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,748
This Orbitz deal was found by Cheapflights users on 5/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:20 pm
STL
- ICN
2 stops38h 10m
Air Canada
Mon 7/65:45 pm
ICN
- STL
2 stops38h 57m
Air Canada
Deal found 5/17![Air Canada logo]()
$1,477
This Orbitz deal was found by Cheapflights users on 5/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/218:40 am
STL
- GMP
2 stops23h 45m
Multiple Airlines
Mon 7/68:40 am
GMP
- STL
2 stops25h 27m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$1,752
This Travelocity deal was found by Cheapflights users on 5/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/228:40 am
STL
- GMP
2 stops23h 45m
Multiple Airlines
Tue 7/78:40 am
GMP
- STL
2 stops25h 27m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,816
This FlightHub deal was found by Cheapflights users on 5/17. 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.
Mon 6/291:20 pm
STL
- ICN
1 stop37h 05m
Air Canada
Sun 8/235:45 pm
ICN
- STL
2 stops38h 57m
Air Canada
Deal found 5/17![Air Canada logo]()
$1,521
One-way flights from St. Louis to South KoreaSearch for one-way flight options from St. Louis to South Korea. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
Search for one-way flight options from St. Louis to South Korea. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/153:57 pm
STL
- ICN
2 stops39h 43m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 10/275:32 pm
STL
- ICN
2 stops36h 58m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 11/75:32 pm
STL
- ICN
2 stops35h 58m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1011:13 am
STL
- ICN
3 stops44h 27m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/166:21 am
STL
- ICN
2 stops25h 19m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$634
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/116:21 am
STL
- ICN
2 stops25h 19m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$655
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1311:18 am
STL
- ICN
3 stops44h 22m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$694
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Fri 6/128:40 am
STL
- GMP
2 stops22h 35m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,054
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/153:57 pm
STL
- GMP
3 stops40h 28m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,090
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Sun 6/146:35 am
STL
- GMP
2 stops38h 05m
Japan Airlines
Deal found 5/20![Japan Airlines logo]()
$1,116
This KAYAK deal was found by Cheapflights users on 5/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:35 am
STL
- GMP
2 stops24h 40m
Japan Airlines
Deal found 5/20![Japan Airlines logo]()
$1,150
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Fri 6/126:35 am
STL
- GMP
2 stops24h 40m
Japan Airlines
Deal found 5/21![Japan Airlines logo]()
$1,153
Find flight deals from St. Louis to South Korea
Keep the following information in mind while searching for St. Louis to South Korea flight deals. Data was last updated May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,183 (Cathay Pacific) |
One-way from | $549 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,011 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to South Korea 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 May 22, 2026.
Use the filters below to find and compare flights from St. Louis to South Korea that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 8/18
6:00 am-12:25 am
2 stops28h 25m
Incheon Intl
Mon 8/31
8:00 am-10:55 pm
2 stops28h 55m
$1,183
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 10/25
7:00 am-5:15 pm
2 stops44h 15m
Incheon Intl
Fri 11/20
12:20 am-11:59 pm
2 stops38h 39m
$1,251
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 8/11
8:55 am-5:30 pm
1 stop18h 35m
Incheon Intl
Tue 8/18
7:05 pm-2:02 pm
1 stop32h 57m
$1,260
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 10/29
7:00 am-5:15 pm
2 stops44h 15m
Incheon Intl
Sun 11/8
12:20 am-11:56 pm
2 stops38h 36m
$1,287
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Fri 10/16
3:33 pm-12:40 pm
2 stops31h 07m
Incheon Intl
Sat 10/24
1:55 am-8:08 pm
2 stops32h 13m
$1,368
St. LouisSeoul
STL - GMP
STLGMP
Lambert-St Louis
Thu 10/15
4:40 pm-12:50 pm
2 stops30h 10m
Seoul Gimpo Intl
Sat 10/31
1:50 pm-12:56 am
2 stops49h 06m
$1,384
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 10/15
11:51 am-4:00 am
1 stop26h 09m
Incheon Intl
Sat 10/31
9:35 am-1:20 pm
1 stop17h 45m
$1,420
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 7/28
1:22 pm-4:00 am
1 stop24h 38m
Incheon Intl
Tue 8/18
7:20 pm-12:41 am
1 stop19h 21m
$1,420
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 8/1
6:04 pm-4:25 pm
1 stop32h 21m
Incheon Intl
Sat 8/22
7:20 pm-9:00 pm
1 stop15h 40m
$1,426
Quickest round-trip
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Fri 10/16
5:30 pm-4:00 am
1 stop20h 30m
Incheon Intl
Sun 10/25
8:35 pm-11:18 pm
1 stop16h 43m
$1,468
Showing 1-10 of 37 resultsSorted by cheapest first
Best time to book a flight from St. Louis to South Korea
Have a flexible travel schedule? Discover the best time to fly to South Korea from St. Louis with our price prediction graph.
STL-ICN
STL-GMP
STL-TAE
STL-PUS
STL-CJU
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 St. Louis to South Korea
STL-KR0
STL-ICN
STL-GMP
STL-TAE
STL-PUS
What is the cheapest month to book a flight from St. Louis to South Korea?
Currently, October is the cheapest month in which you can book a flight from St. Louis to South Korea (average of $522). Flying from St. Louis to South Korea in July is currently the most expensive (average of $1,111). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing South Korea
Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated May 22, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from St. Louis to South Korea by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to South Korea
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to South Korea by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to South Korea by cabin class
Find flights from St. Louis to South Korea, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and South Korea flights
Browse other St. Louis and South Korea flight options. Last updated on May 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to South Korea regions
Consider these flights traveling to South Korea regions.
Top 3 airlines flying from St. Louis to South Korea
Discover the top 3 airlines that operate flights from St. Louis to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$832 | Average$1,556 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$846 | Average$986 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$865 | Average$1,199 | FlexibilityNo cancel fee | On-time69% |