HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$461+ Cheap flights from Seoul (SEL) 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — STL
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to St. Louis 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 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 February 10, 2026.

This American Airlines deal was found by Cheapflights users on 2/8. 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.
Mon 2/237:15 pm
ICN
-
STL
1 stop19h 07m
American Airlines
Sun 3/16:50 pm
STL
-
ICN
1 stop30h 55m
American Airlines
Deal found 2/8$758
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 2/197:15 pm
ICN
-
STL
1 stop36h 58m
American Airlines
Mon 2/232:31 pm
STL
-
ICN
2 stops35h 14m
American Airlines
Deal found 2/9$851
This Air Canada deal was found by Cheapflights users on 2/9. 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.
Wed 5/275:45 pm
ICN
-
STL
2 stops32h 21m
Air Canada
Mon 8/314:30 pm
STL
-
ICN
2 stops33h 35m
Air Canada
Deal found 2/9$862
This Expedia deal was found by Cheapflights users on 2/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:25 am
ICN
-
STL
2 stops23h 40m
Multiple Airlines
Mon 8/316:41 am
STL
-
ICN
1 stop20h 49m
Multiple Airlines
Deal found 2/9$900
This Air Canada deal was found by Cheapflights users on 2/8. 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.
Thu 5/285:45 pm
ICN
-
STL
2 stops32h 21m
Air Canada
Mon 6/11:00 pm
STL
-
ICN
2 stops37h 05m
Air Canada
Deal found 2/8$933
This Air Canada deal was found by Cheapflights users on 2/9. 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.
Mon 4/135:45 pm
ICN
-
STL
2 stops41h 09m
Air Canada
Mon 4/206:05 pm
STL
-
ICN
2 stops32h 00m
Air Canada
Deal found 2/9$940
This Air Canada deal was found by Cheapflights users on 2/9. 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.
Mon 4/135:45 pm
ICN
-
STL
2 stops41h 09m
Air Canada
Sun 4/194:05 pm
STL
-
ICN
2 stops34h 00m
Air Canada
Deal found 2/9$944
This Air Canada deal was found by Cheapflights users on 2/10. 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.
Mon 4/135:45 pm
ICN
-
STL
2 stops41h 09m
Air Canada
Sat 4/254:05 pm
STL
-
ICN
2 stops34h 00m
Air Canada
Deal found 2/10$975
This Japan Airlines deal was found by Cheapflights users on 2/7. 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 10/168:00 am
GMP
-
STL
2 stops29h 05m
Japan Airlines
Mon 10/197:38 am
STL
-
GMP
2 stops23h 37m
Japan Airlines
Deal found 2/7$1,349
This KAYAK deal was found by Cheapflights users on 2/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:00 am
GMP
-
STL
2 stops25h 33m
Japan Airlines
Tue 4/217:12 am
STL
-
GMP
2 stops20h 43m
Japan Airlines
Deal found 2/9$1,417
This Trip.com deal was found by Cheapflights users on 2/8. 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 5/287:55 pm
GMP
-
STL
2 stops32h 14m
ANA
Mon 6/16:20 am
STL
-
GMP
2 stops26h 00m
ANA
Deal found 2/8$1,662

Find 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 February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(American Airlines)

One-way from

$461
(FlightHub)
Provider with most accurate pricing for Seoul (SEL)-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Lambert-St Louis flights.
Search Deals
From Seoul (SEL) to Lambert-St Louis
Search Deals
One-way flight from Seoul (SEL) to Lambert-St Louis
Search Deals

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 February 10, 2026.
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

Mon 2/23

7:15 pm-8:55 am

1 stop28h 40m

Lambert-St Louis

Sun 3/1

6:57 pm-4:45 pm

2 stops30h 48m

$758

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Wed 5/27

10:25 am-8:05 pm

2 stops23h 40m

Lambert-St Louis

Mon 8/31

6:41 am-5:30 pm

1 stop20h 49m

$900

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 4/14

5:45 pm-8:54 pm

2 stops41h 09m

Lambert-St Louis

Tue 4/21

8:54 am-4:05 pm

2 stops41h 11m

$1,037

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 3/26

5:55 pm-8:41 pm

2 stops40h 46m

Lambert-St Louis

Thu 4/2

4:05 pm-4:05 pm

2 stops58h 00m

$1,055

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Tue 4/14

9:00 pm-2:51 pm

1 stop31h 51m

Lambert-St Louis

Tue 4/21

3:50 pm-5:15 am

1 stop23h 25m

$1,058

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 5/28

9:00 pm-11:57 pm

1 stop16h 57m

Lambert-St Louis

Mon 6/1

7:56 pm-5:15 am

1 stop19h 19m

$1,110

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 5/28

7:35 pm-5:06 pm

2 stops35h 31m

Lambert-St Louis

Mon 6/1

6:00 am-5:30 pm

1 stop21h 30m

$1,124

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Sun 5/10

5:45 pm-12:06 pm

2 stops32h 21m

Lambert-St Louis

Fri 5/15

2:35 pm-4:05 pm

2 stops35h 30m

$1,124

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

8:00 am-7:33 pm

2 stops25h 33m

Lambert-St Louis

Tue 4/21

7:12 am-5:55 pm

2 stops20h 43m

$1,417

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 5/28

7:55 pm-2:09 pm

2 stops32h 14m

Lambert-St Louis

Mon 6/1

6:20 am-10:20 pm

2 stops26h 00m

$1,662

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Seoul to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to St. Louis in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seoul-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 February 10, 2026.
Read through reviews of airlines operating flights from Seoul to St. Louis, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,180 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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
8,180 reviews
Delta
7.9
Good
8,180 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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.
American Airlines
7.2
Good
11,265 reviews
Delta
7.9
Good
8,180 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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.

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 2 different airlines.

  • How long is the flight from Seoul to St. Louis?

    American Airlines, Air Canada, and Japan Airlines can get you from Seoul to St. Louis in just under 19h 07m. Your travel time can differ by up to 16h 27m. The distance between Seoul and St. Louis is about 6670 mi. This flight may include one or multiple stops.

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

    Currently priced at $568, American Airlines will fly you from Seoul to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $630.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Seoul to St. Louis

Discover the top 2 airlines 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 February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$568Average$1,621FlexibilityNo cancel feeOn-time71%
DeltaCheapest$630Average$784FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.