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St. Louis

$571+ Cheap flights from Seoul (SEL) 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — STL
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Seoul to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 30, 2025.

Round-trip from

$571
(Trip.com)
From Seoul (SEL) to Lambert-St Louis
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Find flight deals from Seoul to St. Louis

Cheapest flights from Seoul to St. Louis
Explore the most affordable flight options available from Seoul to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/126:00 pmICN - STL
1 stop39h 57mAir Canada
vie. 9/194:05 pmSTL - ICN
2 stops34h 10mAir Canada
Deal found 7/29$571
This United Airlines deal was found by Cheapflights users on 7/30. 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.
mar. 11/1812:45 pmICN - STL
1 stop18h 42mUnited Airlines
dom. 11/235:29 pmSTL - ICN
1 stop31h 46mUnited Airlines
Deal found 7/30$647
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/125:25 pmICN - STL
1 stop19h 02mAmerican Airlines
vie. 9/195:18 amSTL - ICN
1 stop20h 12mAmerican Airlines
Deal found 7/29$654
This Delta deal was found by Cheapflights users on 7/30. 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.
sáb. 9/136:40 pmICN - STL
1 stop34h 04mDelta
sáb. 9/205:30 pmSTL - ICN
1 stop31h 50mDelta
Deal found 7/30$688
This Korean Air deal was found by Cheapflights users on 7/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/136:40 pmICN - STL
1 stop18h 22mKorean Air
mar. 10/218:53 amSTL - ICN
1 stop18h 27mKorean Air
Deal found 7/30$701
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
jue. 9/256:20 pmICN - STL
1 stop19h 39mMultiple Airlines
sáb. 10/183:57 pmSTL - ICN
1 stop35h 58mMultiple Airlines
Deal found 7/29$777
This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/148:35 pmICN - STL
1 stop33h 43mHawaiian Airlines
sáb. 11/224:08 pmSTL - ICN
1 stop35h 27mHawaiian Airlines
Deal found 7/28$938
This Onlinetour deal was found by Cheapflights users on 7/29. 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 Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/127:55 amGMP - STL
2 stops26h 37mJapan Airlines
vie. 9/198:50 amSTL - GMP
2 stops23h 00mJapan Airlines
Deal found 7/29$1,029
This Mytrip deal was found by Cheapflights users on 7/30. 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.
lun. 10/137:55 pmGMP - STL
2 stops32h 32mANA
mar. 10/2112:25 pmSTL - GMP
2 stops43h 55mANA
Deal found 7/30$1,233
This Japan Airlines deal was found by Cheapflights users on 7/28. 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.
lun. 9/157:55 amGMP - STL
2 stops21h 14mMultiple Airlines
mar. 10/148:04 pmSTL - GMP
2 stops24h 41mMultiple Airlines
Deal found 7/28$1,289

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul 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 julio 30, 2025.
Use the filters below to find and compare flights from Seoul to St. Louis that are best for you.

Fly from

Seoul

Fly to

St. Louis

Route

Depart

Return

Price

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 9/12

6:00 pm-7:57 pm

1 stop39h 57m

Lambert-St Louis

vie. 9/19

4:05 pm-4:15 pm

2 stops34h 10m

$571

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

mar. 11/18

12:45 pm-4:27 pm

1 stop18h 42m

Lambert-St Louis

dom. 11/23

5:29 pm-4:15 pm

1 stop31h 46m

$647

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 9/12

5:25 pm-10:27 pm

1 stop19h 02m

Lambert-St Louis

vie. 9/19

5:18 am-3:30 pm

1 stop20h 12m

$654

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

sáb. 9/13

6:40 pm-2:44 pm

1 stop34h 04m

Lambert-St Louis

sáb. 9/20

5:30 pm-3:20 pm

1 stop31h 50m

$688

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

lun. 10/13

6:40 pm-11:02 pm

1 stop18h 22m

Lambert-St Louis

mar. 10/21

8:53 am-5:20 pm

1 stop18h 27m

$701

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

jue. 9/25

6:20 pm-11:59 pm

1 stop19h 39m

Lambert-St Louis

sáb. 10/18

3:57 pm-5:55 pm

1 stop35h 58m

$777

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 11/14

8:35 pm-3:18 pm

1 stop33h 43m

Lambert-St Louis

sáb. 11/22

4:08 pm-6:35 pm

1 stop35h 27m

$938

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

vie. 9/12

7:55 am-8:32 pm

2 stops26h 37m

Lambert-St Louis

vie. 9/19

8:50 am-9:50 pm

2 stops23h 00m

$1,029

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

lun. 10/13

7:55 pm-2:27 pm

2 stops32h 32m

Lambert-St Louis

mar. 10/21

12:25 pm-10:20 pm

2 stops43h 55m

$1,233

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

lun. 9/15

7:55 am-3:09 pm

2 stops21h 14m

Lambert-St Louis

mar. 10/14

8:04 pm-10:45 am

2 stops24h 41m

$1,289

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 17 results
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Best time to book a flight from Seoul to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Seoul 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 Seoul to St. Louis
No data available for this route at this time. Please check back soon.

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 julio 30, 2025.
Read through reviews of airlines operating flights from Seoul to St. Louis, such as Korean Air, ANA, and Japan Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
ANA
8.4
Very good
922 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Japan Airlines
8.3
Very good
1,536 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Alaska Airlines
8.0
Very good
10,000 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Delta
8.0
Very good
7,980 reviews
Korean Air
8.4
Very good
1,121 reviews

Comfort

8.2

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Seoul 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 Seoul?

    If you book a flight to St. Louis from Seoul, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Seoul to Lambert-St Louis per day from 1 airline.

  • What are the cheapest airlines flying from Seoul to St. Louis round-trip?

    Currently priced at $571, Air Canada will fly you from Seoul to St. Louis and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $647 and $654, respectively.

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

    The cheapest airlines for a one-way flight from Seoul to St. Louis are Air Canada ($700), United Airlines ($900), and Japan Airlines ($1,002).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul 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 Seoul to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Seoul to St. Louis (average of $311). Flying from Seoul 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Top airline flying from Seoul to St. Louis

Discover the top airline that operate flights from Seoul 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$687Average$942FlexibilityNo cancel feeOn-timeN/A

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