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$467+ Cheap flights from South Korea 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — STL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from South Korea to St. Louis

Keep the following information in mind while searching for South Korea to St. Louis flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$852
(United Airlines)

One-way from

$467
(Kiwi.com)
Provider with most accurate pricing for Seoul (SEL)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Lambert-St Louis flights.
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From South Korea to Lambert-St Louis
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One-way flight from South Korea to Lambert-St Louis
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Find flight deals from South Korea to St. Louis

Cheapest flights from South Korea to St. Louis
Explore the most affordable flight options available from South Korea to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/144:50 pmICN - STL
2 stops31h 06mUnited Airlines
Fri 4/185:54 pmSTL - ICN
1 stop20h 26mUnited Airlines
Deal found 3/27$852
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/105:45 pmICN - STL
2 stops35h 04mAir Canada
Sat 4/193:40 pmSTL - ICN
2 stops58h 25mAir Canada
Deal found 3/26$864
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:40 pmICN - STL
1 stop18h 21mDelta
Tue 10/143:30 pmSTL - ICN
1 stop32h 40mDelta
Deal found 3/27$991
This Gotogate deal was found by Cheapflights users on 3/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/308:55 pmICN - STL
1 stop22h 08mAsiana Airlines
Fri 8/15:41 pmSTL - ICN
1 stop20h 19mAsiana Airlines
Deal found 3/27$1,160
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Mon 9/157:20 pmGMP - STL
2 stops31h 38mJapan Airlines
Tue 10/147:19 amSTL - GMP
2 stops24h 31mJapan Airlines
Deal found 3/27$1,220
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/114:30 pmPUS - STL
2 stops38h 17mDelta
Sun 5/187:05 amSTL - PUS
2 stops36h 25mDelta
Deal found 3/27$1,283
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:20 pmICN - STL
1 stop19h 39mMultiple Airlines
Sat 4/195:58 pmSTL - ICN
1 stop20h 32mMultiple Airlines
Deal found 3/26$1,348
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/118:45 amPUS - STL
3 stops41h 51mMultiple Airlines
Sun 5/187:30 amSTL - PUS
2 stops24h 05mMultiple Airlines
Deal found 3/27$1,593
This Korean Air deal was found by Cheapflights users on 3/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:30 pmICN - STL
1 stop17h 36mKorean Air
Fri 1/26:04 amSTL - ICN
1 stop18h 26mKorean Air
Deal found 3/27$1,639
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/265:25 pmICN - STL
1 stop20h 49mAmerican Airlines
Fri 8/17:00 amSTL - ICN
1 stop18h 30mAmerican Airlines
Deal found 3/27$1,826
This Qatar Airways deal was found by Cheapflights users on 3/27. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:20 amICN - STL
2 stops32h 38mQatar Airways
Fri 1/212:52 pmSTL - ICN
2 stops37h 23mQatar Airways
Deal found 3/27$1,943

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

Fly from

South Korea

Fly to

St. Louis

Route

Depart

Return

Price

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 4/14

4:50 pm-9:56 am

2 stops31h 06m

Lambert-St Louis

Fri 4/18

5:54 pm-4:20 am

1 stop20h 26m

$852

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 4/10

5:45 pm-2:49 pm

2 stops35h 04m

Lambert-St Louis

Sat 4/19

3:40 pm-4:05 pm

2 stops58h 25m

$864

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 9/15

6:40 pm-11:01 pm

1 stop18h 21m

Lambert-St Louis

Tue 10/14

3:30 pm-2:10 pm

1 stop32h 40m

$991

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Fri 5/30

8:55 pm-5:03 am

1 stop22h 08m

Lambert-St Louis

Fri 8/1

5:41 pm-4:00 am

1 stop20h 19m

$1,160

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 6/16

5:25 pm-9:18 am

1 stop29h 53m

Lambert-St Louis

Mon 8/4

5:30 am-3:30 pm

1 stop20h 00m

$1,168

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 9/15

7:20 pm-12:58 pm

2 stops31h 38m

Lambert-St Louis

Tue 10/14

7:19 am-9:50 pm

2 stops24h 31m

$1,220

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 5/11

4:30 pm-4:47 pm

2 stops38h 17m

Lambert-St Louis

Sun 5/18

7:05 am-9:30 am

2 stops36h 25m

$1,283

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 4/10

6:20 pm-11:59 pm

1 stop19h 39m

Lambert-St Louis

Sat 4/19

5:58 pm-4:30 am

1 stop20h 32m

$1,348

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 5/11

8:45 am-12:36 pm

3 stops41h 51m

Lambert-St Louis

Sun 5/18

7:30 am-9:35 pm

2 stops24h 05m

$1,593

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sun 9/14

1:20 am-11:25 pm

2 stops36h 05m

Lambert-St Louis

Tue 10/14

2:40 pm-5:05 pm

2 stops36h 25m

$2,094

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 20 results
1
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Best time to book a flight from South Korea to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Korea with our price prediction graph.
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 South Korea to St. Louis

What is the cheapest time of day to fly from KR to STL?

Find hourly flight availability from South Korea to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from South Korea to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 28, 2025.
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Asiana Airlines
8.2
Very good
440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Delta
8.0
Very good
7,897 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
Qatar Airways
7.4
Good
3,538 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
United Airlines
7.4
Good
8,603 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Comfort

8.2

Crew

8.7

Food

7.7

Entertainment

7.8

Boarding

8.4

Overall

8.3

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Related info for your journey

Find useful and relevant information for your journey from South Korea to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from South Korea?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from South Korea.

  • What are the cheapest airlines to fly from South Korea to St. Louis one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $506. However, be on the lookout for offers from United Airlines and Japan Airlines, as they are both options that can get you from South Korea to St. Louis for a low price.

  • What are the most popular routes from South Korea to St. Louis?

    The most popular route from South Korea to St. Louis is Incheon Intl - Lambert-St Louis. You may also consider Seoul Gimpo Intl - Lambert-St Louis or Busan Gimhae - Lambert-St Louis.

  • Can I find deals for flights from South Korea to St. Louis that include hotel bookings?

    Yes. In addition to deals on South Korea to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Korea to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to St. Louis.

  • Can I find deals for business class flights from South Korea to St. Louis?

    Yes. Cheapflights offers flight deals from South Korea to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Korea to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from South Korea to St. Louis (average of $311). Flying from South Korea to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near South Korea?

Book flights to South Korea if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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Alternative routes for South Korea to St. Louis

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Top 2 airlines flying from South Korea to St. Louis

Discover the top 2 airlines that operate flights from South Korea to St. Louis. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$941Average$1,464FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,312Average$1,482FlexibilityNo cancel feeOn-time81%
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