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$574+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — STL
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$858
(Kiwi.com)

One-way from

$574
(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 April 30, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/32:40 pmICN - STL
2 stops44h 25mMultiple Airlines
Sat 5/108:15 pmSTL - ICN
2 stops42h 05mMultiple Airlines
Deal found 4/28$784
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:10 pmICN - STL
1 stop34h 16mAir Canada
Sat 11/224:15 pmSTL - ICN
2 stops57h 50mAir Canada
Deal found 4/28$946
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 8/294:50 pmICN - STL
2 stops31h 12mUnited Airlines
Tue 9/308:25 amSTL - ICN
2 stops29h 55mUnited Airlines
Deal found 4/28$1,096
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:55 pmGMP - STL
2 stops30h 30mANA
Tue 9/308:10 amSTL - GMP
2 stops24h 10mANA
Deal found 4/28$1,237
This Korean Air deal was found by Cheapflights users on 4/27. 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.
Fri 5/166:40 pmICN - STL
1 stop18h 46mKorean Air
Sun 6/1511:17 amSTL - ICN
1 stop16h 03mKorean Air
Deal found 4/27$1,303
This Japan Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 8/297:55 amGMP - STL
2 stops18h 53mJapan Airlines
Tue 9/307:30 amSTL - GMP
2 stops24h 20mJapan Airlines
Deal found 4/28$1,376
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:40 amPUS - STL
2 stops37h 52mDelta
Fri 6/207:15 pmSTL - PUS
2 stops33h 05mDelta
Deal found 4/29$1,602
This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1211:00 amPUS - STL
2 stops22h 58mMultiple Airlines
Thu 6/197:30 amSTL - PUS
2 stops43h 05mMultiple Airlines
Deal found 4/28$1,694
This Qatar Airways deal was found by Cheapflights users on 4/28. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:20 amICN - STL
2 stops36h 31mQatar Airways
Tue 9/3011:38 amSTL - ICN
2 stops39h 27mQatar Airways
Deal found 4/28$1,788

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 April 30, 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 5/26

4:40 pm-12:04 am

1 stop21h 24m

Lambert-St Louis

Tue 6/17

6:41 am-4:40 pm

1 stop19h 59m

$858

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 5/13

7:05 pm-12:36 pm

1 stop31h 31m

Lambert-St Louis

Mon 7/28

1:30 pm-4:15 pm

1 stop36h 45m

$1,073

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Fri 8/29

4:50 pm-10:02 am

2 stops31h 12m

Lambert-St Louis

Tue 9/30

8:25 am-4:20 am

2 stops29h 55m

$1,096

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 8/28

7:55 pm-12:25 pm

2 stops30h 30m

Lambert-St Louis

Tue 9/30

8:10 am-10:20 pm

2 stops24h 10m

$1,237

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Fri 5/16

6:40 pm-11:26 pm

1 stop18h 46m

Lambert-St Louis

Sun 6/15

11:17 am-5:20 pm

1 stop16h 03m

$1,303

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Fri 8/29

7:55 am-12:48 pm

2 stops18h 53m

Lambert-St Louis

Tue 9/30

7:30 am-9:50 pm

2 stops24h 20m

$1,376

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Fri 6/13

10:40 am-10:32 am

2 stops37h 52m

Lambert-St Louis

Fri 6/20

7:15 pm-6:20 pm

2 stops33h 05m

$1,602

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Thu 6/12

11:00 am-7:58 pm

2 stops22h 58m

Lambert-St Louis

Thu 6/19

7:30 am-4:35 pm

2 stops43h 05m

$1,694

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Wed 8/27

1:20 am-11:51 pm

2 stops36h 31m

Lambert-St Louis

Tue 9/30

11:38 am-5:05 pm

2 stops39h 27m

$1,788

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sun 5/4

12:45 pm-12:06 am

2 stops49h 21m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 20 results
1
2

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 April 30, 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 April 30, 2025.
Read through reviews of airlines operating flights from South Korea to St. Louis, such as Korean Air, Japan Airlines and ANA. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Japan Airlines
8.3
Very good
1,459 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
ANA
8.3
Very good
852 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,292 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Alaska Airlines
8.0
Very good
9,968 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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 WestJet, with whom users have recently found tickets for as low as $871. However, be on the lookout for offers from Alaska 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 Busan Gimhae - Lambert-St Louis or Seoul Gimpo Intl - 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
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
O'Fallon

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$941Average$1,464FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,312Average$1,482FlexibilityNo cancel feeOn-time81%

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