$542+ Cheap flights from St. Louis (STL) to South Korea
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Nov 1 — Nov 81
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 St. Louis to South Korea
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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 October 2, 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 October 2, 2026.
This Mytrip deal was found by Cheapflights users on 9/27. 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.
Sat 10/317:59 pm -
2 stops35h 21m
Sat 11/77:45 pm -
2 stops30h 34m
Deal found 9/27![Multiple Airlines logo]()
$1,060
This Cathay Pacific deal was found by Cheapflights users on 9/30. 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.
Mon 10/267:02 am -
2 stops27h 38m
Wed 11/2510:00 am -
2 stops45h 34m
Deal found 9/30![Multiple Airlines logo]()
$1,091
This Delta deal was found by Cheapflights users on 9/30. 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.
Mon 10/56:40 am -
1 stop19h 45m
Wed 11/45:40 pm -
1 stop19h 19m
Deal found 9/30![Delta logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:08 am -
1 stop17h 52m
Wed 11/412:45 pm -
2 stops20h 53m
Deal found 9/30![United Airlines logo]()
$1,100
This Cathay Pacific deal was found by Cheapflights users on 9/28. 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 11/246:00 am -
2 stops27h 40m
Thu 12/31:55 am -
2 stops31h 58m
Deal found 9/28![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/30. 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 11/242:31 pm -
1 stop24h 14m
Fri 12/49:35 am -
1 stop25h 57m
Deal found 9/30![Delta logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:40 pm -
2 stops25h 00m
Fri 12/412:45 pm -
2 stops21h 41m
Deal found 9/30![United Airlines logo]()
$1,150
This Gurufare deal was found by Cheapflights users on 10/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:06 pm -
2 stops32h 29m
Sun 11/227:35 pm -
2 stops36h 09m
Deal found 10/1![Cathay Pacific logo]()
$1,175
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Sat 11/147:59 pm -
2 stops34h 21m
Sat 11/216:55 pm -
3 stops27h 59m
Deal found 9/30![Multiple Airlines logo]()
$1,178
This Cathay Pacific deal was found by Cheapflights users on 10/1. 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 10/166:04 am -
2 stops28h 21m
Sun 10/257:35 pm -
2 stops42h 24m
Deal found 10/1![Multiple Airlines logo]()
$1,186
This Japan Airlines deal was found by Cheapflights users on 9/28. 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 11/127:26 am -
2 stops23h 39m
Thu 11/198:15 am -
2 stops26h 49m
Deal found 9/28![Multiple Airlines logo]()
$1,487
This FlightHub deal was found by Cheapflights users on 9/27. 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 10/316:32 am -
2 stops38h 13m
Sat 11/77:40 pm -
2 stops40h 02m
Deal found 9/27![Japan Airlines logo]()
$1,516
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 October 2, 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 October 2, 2026.
This Delta deal was found by Cheapflights users on 10/1. 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.
Mon 10/266:47 am -
1 stop20h 03m
Wed 11/259:35 am -
1 stop25h 54m
Deal found 10/1![Delta logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:29 pm -
2 stops24h 51m
Wed 11/412:45 pm -
2 stops19h 14m
Deal found 9/30![United Airlines logo]()
$1,100
This Cathay Pacific deal was found by Cheapflights users on 10/1. 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 11/157:06 pm -
2 stops32h 29m
Sun 11/227:35 pm -
2 stops43h 24m
Deal found 10/1![Multiple Airlines logo]()
$1,186
This FlightHub deal was found by Cheapflights users on 9/27. 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 10/316:32 am -
2 stops38h 13m
Sat 11/77:40 pm -
2 stops40h 02m
Deal found 9/27![Japan Airlines logo]()
$1,516
This Delta deal was found by Cheapflights users on 10/1. 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.
Mon 10/56:40 am -
1 stop19h 45m
Wed 11/45:40 pm -
1 stop19h 19m
Deal found 10/1![Delta logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:53 am -
2 stops27h 47m
Thu 11/1912:45 pm -
2 stops24h 07m
Deal found 9/28![United Airlines logo]()
$1,100
This Delta deal was found by Cheapflights users on 9/28. 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 11/126:13 am -
1 stop18h 37m
Thu 11/195:40 pm -
1 stop21h 16m
Deal found 9/28![Delta logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:29 pm -
2 stops24h 51m
Wed 10/1411:30 am -
2 stops21h 31m
Deal found 9/27![United Airlines logo]()
$1,100
This Delta deal was found by Cheapflights users on 9/30. 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 11/146:40 am -
1 stop19h 10m
Sat 11/217:25 pm -
1 stop17h 09m
Deal found 9/30![Delta logo]()
$1,196
This Japan Airlines deal was found by Cheapflights users on 9/28. 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 11/127:26 am -
2 stops23h 39m
Thu 11/198:15 am -
2 stops26h 49m
Deal found 9/28![Multiple Airlines logo]()
$1,487
This Delta deal was found by Cheapflights users on 9/30. 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 10/226:47 am -
1 stop19h 38m
Sun 10/255:40 pm -
1 stop20h 14m
Deal found 9/30![Delta logo]()
$1,196
This oojo deal was found by Cheapflights users on 9/30. 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.
Thu 11/126:00 am -
2 stops25h 05m
Fri 11/2012:05 pm -
2 stops43h 54m
Deal found 9/30![Japan Airlines logo]()
$1,642
This Japan Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/2711:32 am -
2 stops20h 33m
Tue 11/38:15 am -
2 stops26h 07m
Deal found 9/28![Multiple Airlines logo]()
$1,623
This Japan Airlines deal was found by Cheapflights users on 10/1. 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.
Sun 11/156:00 am -
2 stops25h 05m
Sun 11/228:15 am -
2 stops26h 49m
Deal found 10/1![Multiple Airlines logo]()
$1,644
This Ovago deal was found by Cheapflights users on 9/30. 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.
Sat 11/148:10 am -
2 stops35h 35m
Sat 11/218:15 am -
2 stops23h 44m
Deal found 9/30![Japan Airlines logo]()
$1,839
This Japan Airlines deal was found by Cheapflights users on 9/27. 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 10/226:32 am -
2 stops24h 43m
Mon 10/268:15 am -
2 stops22h 38m
Deal found 9/27![Japan Airlines logo]()
$1,898
This Ovago deal was found by Cheapflights users on 9/27. 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.
Thu 10/226:32 am -
2 stops24h 43m
Sun 10/258:15 am -
2 stops22h 38m
Deal found 9/27![Japan Airlines logo]()
$2,072
Last-minute flights from St. Louis to South KoreaDiscover last-minute flight deals from St. Louis to South Korea. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to South Korea. Data last updated October 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/30. 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.
Mon 10/56:40 am -
1 stop19h 45m
Wed 11/45:40 pm -
1 stop19h 19m
Deal found 9/30![Delta logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:08 am -
1 stop17h 52m
Wed 11/412:45 pm -
2 stops20h 53m
Deal found 9/30![United Airlines logo]()
$1,100
This Cathay Pacific deal was found by Cheapflights users on 10/1. 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 10/166:04 am -
2 stops28h 21m
Sun 10/257:35 pm -
2 stops42h 24m
Deal found 10/1![Multiple Airlines logo]()
$1,186
This Cathay Pacific deal was found by Cheapflights users on 9/30. 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.
Mon 10/267:02 am -
2 stops27h 38m
Wed 11/2510:00 am -
2 stops45h 34m
Deal found 9/30![Multiple Airlines logo]()
$1,091
This Mytrip deal was found by Cheapflights users on 9/27. 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.
Sat 10/317:59 pm -
2 stops35h 21m
Sat 11/77:45 pm -
2 stops30h 34m
Deal found 9/27![Multiple Airlines logo]()
$1,060
This FlightHub deal was found by Cheapflights users on 9/27. 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 10/316:32 am -
2 stops38h 13m
Sat 11/77:40 pm -
2 stops40h 02m
Deal found 9/27![Japan Airlines logo]()
$1,516
This Japan Airlines deal was found by Cheapflights users on 9/28. 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 11/127:26 am -
2 stops23h 39m
Thu 11/198:15 am -
2 stops26h 49m
Deal found 9/28![Multiple Airlines logo]()
$1,487
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Sat 11/147:59 pm -
2 stops34h 21m
Sat 11/216:55 pm -
3 stops27h 59m
Deal found 9/30![Multiple Airlines logo]()
$1,178
This Gurufare deal was found by Cheapflights users on 10/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:06 pm -
2 stops32h 29m
Sun 11/227:35 pm -
2 stops36h 09m
Deal found 10/1![Cathay Pacific logo]()
$1,175
This Cathay Pacific deal was found by Cheapflights users on 9/28. 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 11/246:00 am -
2 stops27h 40m
Thu 12/31:55 am -
2 stops31h 58m
Deal found 9/28![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/30. 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 11/242:31 pm -
1 stop24h 14m
Fri 12/49:35 am -
1 stop25h 57m
Deal found 9/30![Delta logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:40 pm -
2 stops25h 00m
Fri 12/412:45 pm -
2 stops21h 41m
Deal found 9/30![United Airlines logo]()
$1,150
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 October 2, 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 October 2, 2026.
This Air Canada deal was found by Cheapflights users on 9/28. 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 10/274:05 pm -
2 stops34h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Air Canada logo]()
$542
This Air Canada deal was found by Cheapflights users on 9/27. 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 11/34:05 pm -
2 stops34h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air Canada logo]()
$548
This Delta deal was found by Cheapflights users on 9/28. 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 10/2710:14 am -
1 stop28h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Delta logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 12/912:02 pm -
3 stops59h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 11/36:00 am -
3 stops45h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$704
This Cathay Pacific deal was found by Cheapflights users on 9/28. 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.
Mon 10/127:02 am -
2 stops25h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$712
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 11/37:00 am -
1 stop20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Korean Air logo]()
$715
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 12/86:13 pm -
3 stops43h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$718
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/86:00 am -
1 stop18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Korean Air logo]()
$719
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:08 pm -
3 stops36h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$737
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 12/127:54 pm -
3 stops42h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$739
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/76:47 am -
1 stop19h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Korean Air logo]()
$740
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 October 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,060 (Mytrip) |
One-way from | $542 (Air Canada) |
Popular in | December |
Cheapest in | February |
Average price | $1,350 |
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 7,457,451 searches. Data last updated October 2, 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
Quickest round-trip
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Mon 10/12
6:47 am-4:25 pm
1 stop19h 38m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$582
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Tue 10/27
10:14 am-4:45 am
1 stop28h 31m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$582
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Tue 11/3
6:00 am-6:35 pm
3 stops45h 35m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$704
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Mon 10/12
7:02 am-10:25 pm
2 stops25h 23m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$712
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Tue 10/27
1:08 pm-3:25 pm
3 stops36h 17m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$737
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Wed 10/7
6:47 am-4:25 pm
1 stop19h 38m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$740
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 12/11
7:54 pm-4:20 pm
2 stops53h 26m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$760
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Wed 12/23
6:05 pm-4:20 pm
2 stops55h 15m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$775
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Thu 12/24
4:49 pm-5:45 am
1 stop21h 56m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$802
St. LouisSeoul
STL Lambert-St Louis - GMP Seoul Gimpo Intl
STLGMP
Lambert-St Louis
Tue 10/27
4:42 pm-8:15 am
3 stops49h 33m
Seoul Gimpo Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$809
Showing 1-10 of 33 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
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
What is the cheapest month to book a flight from St. Louis to South Korea?
Currently, February is the cheapest month in which you can book a flight from St. Louis to South Korea (average of $865). Flying from St. Louis to South Korea in July is currently the most expensive (average of $1,536). 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 October 2, 2026.
Get a feel of what it's like to fly with Korean Air,Japan Airlines, andDelta 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.
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Comfort
8.3
Entertainment
8.2
Boarding
8.5
Overall
8.4
Crew
8.7
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
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 October 2, 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 5 airlines flying from St. Louis to South Korea
Discover the top 5 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 7,457,451 searches. Data last updated October 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$846 | Average$1,755 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$846 | Average$1,167 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$865 | Average$1,181 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$999 | Average$1,624 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,083 | Average$1,287 | FlexibilityNo cancel fee | On-time67% |