$352+ Cheap flights from St. Louis (STL) to Incheon Intl (ICN)
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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Mar 23 — Mar 301
1 adult, Economy
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Find cheap flights from St. Louis to Incheon Intl 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 St. Louis to Incheon Intl
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Best
Last-minute
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Cheapest flights from St. Louis to Incheon IntlExplore the most affordable flight options available from St. Louis to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.
Explore the most affordable flight options available from St. Louis to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Mon 3/98:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Tue 2/175:25 pm
STL
- ICN
1 stop21h 15m
United Airlines
Sat 2/2112:45 pm
ICN
- STL
1 stop18h 42m
United Airlines
Deal found 2/16![United Airlines logo]()
$867
This Air Canada deal was found by Cheapflights users on 2/20. 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 4/154:05 pm
STL
- ICN
1 stop35h 25m
Air Canada
Wed 4/227:05 pm
ICN
- STL
1 stop34h 19m
Air Canada
Deal found 2/20![Air Canada logo]()
$871
This Air Canada deal was found by Cheapflights users on 2/19. 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.
Tue 9/12:40 pm
STL
- ICN
2 stops35h 25m
Air Canada
Wed 11/46:55 pm
ICN
- STL
2 stops35h 35m
Air Canada
Deal found 2/19![Air Canada logo]()
$872
This Delta deal was found by Cheapflights users on 2/18. 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.
Wed 2/185:50 pm
STL
- ICN
1 stop32h 00m
Delta
Wed 2/258:05 pm
ICN
- STL
2 stops18h 18m
Delta
Deal found 2/18![Delta logo]()
$877
This Air Canada deal was found by Cheapflights users on 2/20. 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 4/64:05 pm
STL
- ICN
1 stop35h 25m
Air Canada
Mon 4/135:45 pm
ICN
- STL
2 stops35h 39m
Air Canada
Deal found 2/20![Air Canada logo]()
$882
This BusinessClass deal was found by Cheapflights users on 2/17. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:05 pm
STL
- ICN
1 stop35h 25m
Asiana Airlines
Tue 4/287:05 pm
ICN
- STL
1 stop34h 19m
Asiana Airlines
Deal found 2/17![Asiana Airlines logo]()
$884
This Air Canada deal was found by Cheapflights users on 2/16. 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 9/1612:10 pm
STL
- ICN
1 stop38h 05m
Air Canada
Fri 9/256:00 pm
ICN
- STL
1 stop38h 41m
Air Canada
Deal found 2/16![Air Canada logo]()
$899
This Gurufare deal was found by Cheapflights users on 2/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:05 pm
STL
- ICN
1 stop35h 25m
Asiana Airlines
Thu 4/305:45 pm
ICN
- STL
2 stops40h 20m
Asiana Airlines
Deal found 2/17![Asiana Airlines logo]()
$902
This Air Canada deal was found by Cheapflights users on 2/20. 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 4/164:05 pm
STL
- ICN
1 stop35h 25m
Air Canada
Wed 7/156:00 pm
ICN
- STL
1 stop38h 27m
Air Canada
Deal found 2/20![Air Canada logo]()
$903
Best flights from St. Louis to Incheon IntlDiscover carefully curated flight deals from St. Louis to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 21, 2026.
Discover carefully curated flight deals from St. Louis to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 21, 2026.
This Air Canada deal was found by Cheapflights users on 2/19. 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 4/154:05 pm
STL
- ICN
1 stop35h 25m
Air Canada
Wed 4/227:05 pm
ICN
- STL
1 stop34h 19m
Air Canada
Deal found 2/19![Air Canada logo]()
$871
This Alaska Airlines deal was found by Cheapflights users on 2/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Mon 3/98:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$907
This Air Canada deal was found by Cheapflights users on 2/17. 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 3/44:05 pm
STL
- ICN
2 stops34h 05m
Air Canada
Mon 3/95:55 pm
ICN
- STL
2 stops35h 34m
Air Canada
Deal found 2/17![Air Canada logo]()
$871
This Air Canada deal was found by Cheapflights users on 2/17. 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.
Sun 4/194:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Sun 4/267:05 pm
ICN
- STL
1 stop34h 19m
Air Canada
Deal found 2/17![Air Canada logo]()
$909
This Air Canada deal was found by Cheapflights users on 2/18. 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.
Tue 4/144:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Sat 4/257:05 pm
ICN
- STL
1 stop34h 19m
Air Canada
Deal found 2/18![Air Canada logo]()
$909
This Air Canada deal was found by Cheapflights users on 2/19. 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.
Sun 4/124:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Sun 4/267:05 pm
ICN
- STL
1 stop34h 19m
Air Canada
Deal found 2/19![Air Canada logo]()
$909
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/164:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Wed 4/225:45 pm
ICN
- STL
2 stops35h 39m
Air Canada
Deal found 2/17![Air Canada logo]()
$909
Last-minute flights from St. Louis to Incheon IntlDiscover last-minute flight deals from St. Louis to Incheon Intl. Data last updated February 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Incheon Intl. Data last updated February 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 2/214:30 pm
STL
- ICN
2 stops22h 10m
United Airlines
Mon 2/236:00 pm
ICN
- STL
2 stops19h 59m
United Airlines
Deal found 2/17![United Airlines logo]()
$871
This Gurufare deal was found by Cheapflights users on 2/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/214:30 pm
STL
- ICN
2 stops22h 10m
Asiana Airlines
Mon 2/236:00 pm
ICN
- STL
1 stop37h 44m
Asiana Airlines
Deal found 2/17![Asiana Airlines logo]()
$984
This Ovago deal was found by Cheapflights users on 2/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:47 pm
STL
- ICN
1 stop36h 48m
Multiple Airlines
Mon 2/238:35 pm
ICN
- STL
1 stop18h 24m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$995
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Mon 3/98:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/167:00 pm
STL
- ICN
2 stops30h 15m
United Airlines
Tue 3/314:50 pm
ICN
- STL
2 stops30h 35m
United Airlines
Deal found 2/20![United Airlines logo]()
$921
This Delta deal was found by Cheapflights users on 2/20. 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 3/166:29 am
STL
- ICN
1 stop19h 01m
Delta
Tue 3/314:25 pm
ICN
- STL
1 stop18h 41m
Delta
Deal found 2/20![Delta logo]()
$989
This American Airlines deal was found by Cheapflights users on 2/17. 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 3/166:50 pm
STL
- ICN
1 stop31h 05m
American Airlines
Tue 3/315:40 pm
ICN
- STL
1 stop29h 15m
American Airlines
Deal found 2/17![American Airlines logo]()
$1,032
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Wed 3/255:15 am
STL
- ICN
2 stops20h 00m
United Airlines
Mon 3/3011:30 am
ICN
- STL
1 stop32h 20m
United Airlines
Deal found 2/17![United Airlines logo]()
$973
One-way flights from St. Louis to Incheon IntlSearch for one-way flight options from St. Louis to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated February 21, 2026.
Search for one-way flight options from St. Louis to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated February 21, 2026.
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
STL
- ICN
1 stop21h 35m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$352
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:50 pm
STL
- ICN
1 stop36h 45m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Sat 5/98:13 pm
STL
- ICN
2 stops43h 02m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 2/20. 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.
Tue 4/76:00 am
STL
- ICN
2 stops21h 20m
Delta
Deal found 2/20![Delta logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Mon 5/118:13 pm
STL
- ICN
2 stops43h 02m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 2/18. 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.
Wed 5/66:20 am
STL
- ICN
2 stops20h 30m
Delta
Deal found 2/18![Delta logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Mon 5/49:55 pm
STL
- ICN
3 stops41h 20m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$496
Find flight deals from St. Louis to Incheon Intl
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Incheon Intl (ICN). 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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $866 (Gurufare) |
One-way from | $352 (Gurufare) |
Popular in | July |
Cheapest in | December |
Average price | $865 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Incheon Intl 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 21, 2026.
Use the filters below to find and compare flights from St. Louis to Incheon Intl Airport that are best for you.
Fly from
St. Louis
Fly to
Incheon Intl
Route
Depart
Return
Price
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Wed 4/15
4:05 pm-5:30 pm
1 stop35h 25m
Incheon Intl
Wed 4/22
7:05 pm-3:24 pm
1 stop34h 19m
$871
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Wed 3/4
4:05 pm-5:10 pm
2 stops34h 05m
Incheon Intl
Mon 3/9
5:55 pm-3:29 pm
2 stops35h 34m
$871
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Wed 3/4
7:00 am-6:35 pm
1 stop20h 35m
Incheon Intl
Mon 3/9
8:35 pm-11:59 pm
1 stop17h 24m
$907
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 4/19
4:05 pm-4:05 pm
2 stops34h 00m
Incheon Intl
Sun 4/26
7:05 pm-3:24 pm
1 stop34h 19m
$909
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 4/14
4:05 pm-4:05 pm
2 stops34h 00m
Incheon Intl
Sat 4/25
7:05 pm-3:24 pm
1 stop34h 19m
$909
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 4/12
4:05 pm-4:05 pm
2 stops34h 00m
Incheon Intl
Sun 4/26
7:05 pm-3:24 pm
1 stop34h 19m
$909
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 4/16
4:05 pm-4:05 pm
2 stops34h 00m
Incheon Intl
Wed 4/22
5:45 pm-3:24 pm
2 stops35h 39m
$909
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 4/19
7:00 am-6:35 pm
1 stop21h 35m
$352
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Tue 4/7
3:50 pm-6:35 pm
1 stop36h 45m
$406
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 5/9
8:13 pm-5:15 am
2 stops43h 02m
$432
Showing 1-10 of 15 results
Compare providers for flights from St. Louis to Incheon Intl
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 St. Louis to Incheon Intl in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Incheon Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Incheon Intl Airport 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 St. Louis-Incheon Intl Airport 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 St. Louis to Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from St. Louis with our price prediction graph.
STL-ICN
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 St. Louis to Incheon Intl Airport
How far ahead should I book a flight from St. Louis to Incheon Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Incheon Intl. Price data was last updated on February 18, 2026.
Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Incheon Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from St. Louis to Incheon Intl Airport?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $643). Flying from St. Louis to Incheon Intl Airport in July is currently the most expensive (average of $1,204). 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.
Reviews of airlines servicing Incheon Intl
Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated February 21, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Incheon Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.9
Food
7.2
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Incheon Intl Airport?
Book flights to Incheon Intl Airport if you plan to visit one of these locationsSuwon
Seongnam
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Find flights from St. Louis to Incheon Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Incheon Intl
Explore flights to Incheon Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 21, 2026.
St. Louis and Incheon Intl flights
Browse other St. Louis and Incheon Intl flight options. Last updated on February 21, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on February 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from St. Louis to Incheon Intl
Discover the top 4 airlines that operate flights from St. Louis to Incheon Intl. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$846 | Average$1,846 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$846 | Average$1,055 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$865 | Average$1,571 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$874 | Average$1,527 | FlexibilityNo cancel fee | On-time67% |