How long is the flight from South Korea to St. Louis?

Airlines like Delta, Korean Air, and Japan Airlines fly from South Korea to St. Louis in about 19h 16m. The time it takes to get you to your destination can typically vary by up to 22h 37m. There are 6670 mi between South Korea and St. Louis. This flight may include one or multiple stops.

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.

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).

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.

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.

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.

$629+ Cheap Flights from South Korea to St. Louis

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Cheap flight deals from South Korea to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$629 (Delta)

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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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 November 4, 2025.

Sun 11/97:30 pmICN - STL

1 stop18h 53mDelta

Sat 11/225:17 pmSTL - ICN

2 stops31h 13mDelta

Deal found 11/2

$805

Thu 12/188:35 pmICN - STL

1 stop18h 24mMultiple Airlines

Thu 12/257:00 amSTL - ICN

1 stop20h 35mMultiple Airlines

Deal found 11/3

$1,053

Thu 12/187:15 pmICN - STL

1 stop18h 41mAmerican Airlines

Thu 12/252:04 pmSTL - ICN

2 stops35h 41mAmerican Airlines

Deal found 11/3

$1,057

Thu 12/1812:45 pmICN - STL

2 stops24h 10mUnited Airlines

Thu 12/255:02 pmSTL - ICN

2 stops32h 13mUnited Airlines

Deal found 11/3

$1,086

Sun 11/168:30 pmPUS - STL

2 stops41h 53mKorean Air

Thu 11/206:00 amSTL - PUS

2 stops22h 35mKorean Air

Deal found 11/1

$1,138

Wed 12/1712:20 amICN - STL

2 stops34h 11mQatar Airways

Thu 12/259:08 amSTL - ICN

2 stops41h 07mQatar Airways

Deal found 11/3

$2,130

Sat 11/812:20 amICN - STL

2 stops34h 07mQatar Airways

Sat 11/222:53 pmSTL - ICN

2 stops35h 22mQatar Airways

Deal found 11/2

$3,013

Sun 11/167:20 amPUS - STL

2 stops47h 09mMultiple Airlines

Thu 11/208:00 amSTL - PUS

3 stops36h 35mMultiple Airlines

Deal found 11/1

$10,531

Best flights from South Korea to St. Louis
Discover carefully curated flight deals from South Korea to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2025.

Tue 4/147:20 pmICN - STL

2 stops19h 16mDelta

Tue 4/216:30 amSTL - ICN

1 stop20h 50mDelta

Deal found 11/2

$629

Tue 4/1411:30 amICN - STL

1 stop20h 23mUnited Airlines

Tue 4/217:06 pmSTL - ICN

1 stop19h 14mUnited Airlines

Deal found 11/2

$665

Sun 11/168:30 pmPUS - STL

2 stops41h 53mKorean Air

Thu 11/206:00 amSTL - PUS

2 stops22h 35mKorean Air

Deal found 11/1

$1,138

Sat 4/117:55 amGMP - STL

2 stops20h 31mJapan Airlines

Tue 4/217:20 amSTL - GMP

2 stops20h 40mJapan Airlines

Deal found 11/3

$1,235

Thu 2/197:50 pmGMP - STL

2 stops29h 46mANA

Mon 2/237:41 amSTL - GMP

2 stops36h 39mANA

Deal found 11/1

$1,245

Thu 2/127:30 pmICN - STL

1 stop18h 55mDelta

Mon 2/163:38 pmSTL - ICN

1 stop32h 52mDelta

Deal found 11/2

$699

Thu 4/168:00 amPUS - STL

2 stops29h 38mDelta

Mon 4/208:50 amSTL - PUS

2 stops20h 45mDelta

Deal found 11/3

$822

Sun 11/167:20 amPUS - STL

2 stops47h 09mMultiple Airlines

Thu 11/208:00 amSTL - PUS

3 stops36h 35mMultiple Airlines

Deal found 11/1

$10,531

Last-minute flights from South Korea to St. Louis
Discover last-minute flight deals from South Korea to St. Louis. Data last updated November 4, 2025 and is based on user searches.

Sat 11/812:20 amICN - STL

2 stops34h 07mQatar Airways

Sat 11/222:53 pmSTL - ICN

2 stops35h 22mQatar Airways

Deal found 11/2

$3,013

Sun 11/97:30 pmICN - STL

1 stop31h 29mDelta

Sat 11/225:34 pmSTL - ICN

1 stop30h 56mDelta

Deal found 11/2

$805

Sun 11/168:30 pmPUS - STL

2 stops41h 53mKorean Air

Thu 11/206:00 amSTL - PUS

2 stops22h 35mKorean Air

Deal found 11/1

$1,138

Sun 11/167:20 amPUS - STL

2 stops47h 09mMultiple Airlines

Thu 11/208:00 amSTL - PUS

3 stops36h 35mMultiple Airlines

Deal found 11/1

$10,531

Wed 12/1712:20 amICN - STL

2 stops34h 11mQatar Airways

Thu 12/259:08 amSTL - ICN

2 stops41h 07mQatar Airways

Deal found 11/3

$2,130

Thu 12/188:35 pmICN - STL

1 stop18h 24mMultiple Airlines

Thu 12/257:00 amSTL - ICN

1 stop20h 35mMultiple Airlines

Deal found 11/3

$1,053

Thu 12/187:15 pmICN - STL

1 stop18h 41mAmerican Airlines

Thu 12/252:04 pmSTL - ICN

2 stops35h 41mAmerican Airlines

Deal found 11/3

$1,057

Thu 12/1812:45 pmICN - STL

2 stops24h 10mUnited Airlines

Thu 12/255:02 pmSTL - ICN

2 stops32h 13mUnited Airlines

Deal found 11/3

$1,086

One-way flights from South Korea to St. Louis
Search for one-way flight options from South Korea to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 4, 2025.

Sat 1/310:50 pmICN - STL

3 stops50h 12mMultiple Airlines

Deal found 11/3

$1,224

Sat 1/310:20 amICN - STL

2 stops22h 57mDelta

Deal found 11/2

$1,857

Sat 1/31:50 pmGMP - STL

2 stops49h 09mEVA Air

Deal found 11/2

$2,082

Fri 1/212:20 amICN - STL

2 stops38h 30mQatar Airways

Deal found 11/2

$2,418

Sat 1/36:00 pmICN - STL

1 stop43h 30mUnited Airlines

Deal found 11/3

$5,500

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 4/14

7:20 pm-12:36 am

2 stops19h 16m

Lambert-St Louis

Tue 4/21

6:30 am-5:20 pm

1 stop20h 50m

$629

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 4/14

11:30 am-5:53 pm

1 stop20h 23m

Lambert-St Louis

Tue 4/21

7:06 pm-4:20 am

1 stop19h 14m

$665

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 2/12

7:30 pm-11:25 pm

1 stop18h 55m

Lambert-St Louis

Mon 2/16

3:38 pm-3:30 pm

1 stop32h 52m

$699

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Thu 4/16

8:00 am-11:38 pm

2 stops29h 38m

Lambert-St Louis

Mon 4/20

8:50 am-7:35 pm

2 stops20h 45m

$822

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 11/16

8:30 pm-11:23 pm

2 stops41h 53m

Lambert-St Louis

Thu 11/20

6:00 am-7:35 pm

2 stops22h 35m

$1,138

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Tue 4/21

7:20 am-6:00 pm

2 stops20h 40m

$1,235

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 2/19

7:50 pm-10:36 am

2 stops29h 46m

Lambert-St Louis

Mon 2/23

7:41 am-11:20 am

2 stops36h 39m

$1,245

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 11/16

7:20 am-3:29 pm

2 stops47h 09m

Lambert-St Louis

Thu 11/20

8:00 am-11:35 am

3 stops36h 35m

$10,531

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sat 1/3

10:50 pm-10:02 am

3 stops50h 12m

$1,224

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sat 1/3

10:20 am-6:17 pm

2 stops22h 57m

$1,857

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 13 results

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?

One of the essential ways to save on airfare from South Korea to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 62% on airfare.

What is the cheapest day to fly from South Korea to St. Louis?

Travelers seeking maximum savings on their South Korea to St. Louis flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

See what other customers who have flown with Delta and American Airlines from South Korea to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,002 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,002 reviews

Delta

7.9

Good

8,002 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,038 reviews

Delta

7.9

Good

8,002 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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.
How long is the flight from South Korea to St. Louis?
Airlines like Delta, Korean Air, and Japan Airlines fly from South Korea to St. Louis in about 19h 16m. The time it takes to get you to your destination can typically vary by up to 22h 37m. There are 6670 mi between South Korea and St. Louis. This flight may include one or multiple stops.
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.

See more FAQs

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

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Top 2 airlines flying from South Korea to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$568	Average$1,552	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$630	Average$926	FlexibilityNo cancel fee	On-timeN/A

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$629+ Cheap flights from South Korea to St. Louis (STL)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from South Korea to St. Louis with Cheapflights

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3. Compare prices and book

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 November 4, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from South Korea to St. Louis

Cheapest flights from South Korea to St. LouisExplore 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 November 4, 2025.

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 November 4, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

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.

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 November 4, 2025.

What is the cheapest day to fly from South Korea to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from South Korea to St. Louis. Price data was last updated on December 16, 2024.

Reviews of airlines servicing St. Louis

See what other customers who have flown with Delta and American Airlines from South Korea to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from South Korea to St. Louis?

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for South Korea to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from South Korea to St. Louis

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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 November 4, 2025.