$577+ Cheap flights from St. Louis (STL) to Incheon Intl (ICN)
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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Oct 6 — Oct 131
Round-trip
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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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 September 6, 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 September 6, 2026.
This Air Canada deal was found by Cheapflights users on 9/1. 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 9/2212:10 pm -
2 stops37h 55m
Tue 9/295:45 pm -
2 stops34h 15m
Deal found 9/1![Air Canada logo]()
$1,018
This Air Canada deal was found by Cheapflights users on 9/2. 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 10/264:05 pm -
1 stop35h 20m
Wed 11/256:55 pm -
2 stops35h 31m
Deal found 9/2![Air Canada logo]()
$1,023
This flugladen.de deal was found by Cheapflights users on 9/2. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/132:40 pm -
1 stop36h 50m
Mon 9/287:05 pm -
1 stop32h 55m
Deal found 9/2![Air Canada logo]()
$1,062
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 9/135:45 pm -
2 stops32h 00m
Mon 9/285:50 pm -
1 stop19h 53m
Deal found 9/2![American Airlines logo]()
$1,068
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/105:43 am -
1 stop20h 02m
Mon 9/215:50 pm -
1 stop19h 53m
Deal found 9/4![American Airlines logo]()
$1,079
This Justfly.com deal was found by Cheapflights users on 9/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:55 am -
2 stops29h 15m
Wed 10/285:55 pm -
2 stops35h 28m
Deal found 9/1![Multiple Airlines logo]()
$1,081
This Cathay Pacific deal was found by Cheapflights users on 9/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:04 am -
2 stops28h 36m
Wed 11/257:35 pm -
2 stops35h 59m
Deal found 9/4![Multiple Airlines logo]()
$1,091
This Gurufare deal was found by Cheapflights users on 9/4. 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 10/1412:47 pm -
2 stops40h 18m
Mon 10/261:55 am -
2 stops36h 24m
Deal found 9/4![Cathay Pacific logo]()
$1,097
This Air Canada deal was found by Cheapflights users on 9/2. 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 9/248:55 am -
1 stop18h 35m
Mon 9/287:05 pm -
1 stop32h 55m
Deal found 9/2![Air Canada logo]()
$1,104
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 September 6, 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 September 6, 2026.
This Cathay Pacific deal was found by Cheapflights users on 9/2. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops27h 55m
Wed 10/78:00 am -
2 stops29h 59m
Deal found 9/2![Multiple Airlines logo]()
$1,091
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 9/246:29 am -
1 stop21h 01m
Mon 9/287:35 pm -
1 stop18h 24m
Deal found 9/4![Alaska Airlines logo]()
$1,108
This Delta deal was found by Cheapflights users on 9/2. 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 9/306:00 am -
2 stops20h 25m
Wed 10/74:25 pm -
1 stop18h 58m
Deal found 9/2![Delta logo]()
$1,156
This Cathay Pacific deal was found by Cheapflights users on 9/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:04 am -
2 stops28h 36m
Wed 11/257:35 pm -
2 stops35h 59m
Deal found 9/3![Multiple Airlines logo]()
$1,091
This Delta deal was found by Cheapflights users on 9/5. 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 10/146:00 am -
1 stop18h 10m
Tue 10/277:25 pm -
1 stop18h 29m
Deal found 9/5![Delta logo]()
$1,196
This Cathay Pacific deal was found by Cheapflights users on 9/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:06 pm -
2 stops45h 19m
Tue 11/31:55 am -
2 stops32h 27m
Deal found 9/1![Multiple Airlines logo]()
$1,135
This Delta deal was found by Cheapflights users on 9/3. 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 10/266:47 am -
1 stop20h 03m
Wed 11/259:35 am -
1 stop25h 54m
Deal found 9/3![Delta logo]()
$1,196
This Cathay Pacific deal was found by Cheapflights users on 9/5. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/267:01 pm -
2 stops27h 49m
Tue 6/228:00 am -
2 stops24h 39m
Deal found 9/5![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/4. 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 10/56:54 pm -
1 stop29h 16m
Wed 11/49:35 am -
1 stop26h 16m
Deal found 9/4![Delta logo]()
$1,196
This Cathay Pacific deal was found by Cheapflights users on 9/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:04 am -
2 stops28h 21m
Sun 10/257:35 pm -
2 stops39h 22m
Deal found 9/4![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 9/1. 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 11/242:31 pm -
1 stop24h 14m
Fri 12/49:35 am -
1 stop25h 57m
Deal found 9/1![Delta logo]()
$1,196
Last-minute flights from St. Louis to Incheon IntlDiscover last-minute flight deals from St. Louis to Incheon Intl. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Incheon Intl. Data last updated September 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/105:43 am -
1 stop20h 02m
Mon 9/215:50 pm -
1 stop19h 53m
Deal found 9/4![American Airlines logo]()
$1,079
This flugladen.de deal was found by Cheapflights users on 9/2. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/132:40 pm -
1 stop36h 50m
Mon 9/287:05 pm -
1 stop32h 55m
Deal found 9/2![Air Canada logo]()
$1,062
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 9/135:45 pm -
2 stops32h 00m
Mon 9/285:50 pm -
1 stop19h 53m
Deal found 9/2![American Airlines logo]()
$1,068
This Air Canada deal was found by Cheapflights users on 9/1. 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 9/2212:10 pm -
2 stops37h 55m
Tue 9/295:45 pm -
2 stops34h 15m
Deal found 9/1![Air Canada logo]()
$1,018
This Air Canada deal was found by Cheapflights users on 9/2. 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 9/248:55 am -
1 stop18h 35m
Mon 9/287:05 pm -
1 stop32h 55m
Deal found 9/2![Air Canada logo]()
$1,104
This Justfly.com deal was found by Cheapflights users on 9/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:55 am -
2 stops29h 15m
Wed 10/285:55 pm -
2 stops35h 28m
Deal found 9/1![Multiple Airlines logo]()
$1,081
This Gurufare deal was found by Cheapflights users on 9/4. 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 10/1412:47 pm -
2 stops40h 18m
Mon 10/261:55 am -
2 stops36h 24m
Deal found 9/4![Cathay Pacific logo]()
$1,097
This Air Canada deal was found by Cheapflights users on 9/2. 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 10/264:05 pm -
1 stop35h 20m
Wed 11/256:55 pm -
2 stops35h 31m
Deal found 9/2![Air Canada logo]()
$1,023
This Cathay Pacific deal was found by Cheapflights users on 9/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:04 am -
2 stops28h 36m
Wed 11/257:35 pm -
2 stops35h 59m
Deal found 9/3![Multiple Airlines logo]()
$1,091
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 September 6, 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 September 6, 2026.
This Air Canada deal was found by Cheapflights users on 9/1. 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.
Fri 9/1112:10 pm -
1 stop38h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Air Canada logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 9/112:29 pm -
2 stops38h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 9/1. 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 10/166:21 am -
1 stop20h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Delta logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 10/168:00 pm -
3 stops43h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$704
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 11/188:10 am -
3 stops54h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$2,119
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 11/186:40 am -
1 stop19h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Korean Air logo]()
$3,864
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 September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,018 (Air Canada) |
One-way from | $577 (Air Canada) |
Popular in | July |
Cheapest in | February |
Average price | $1,180 |
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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from St. Louis to Incheon Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 9/11
12:10 pm-4:25 pm
1 stop38h 15m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$577
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 10/16
8:00 pm-3:50 pm
2 stops53h 50m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$619
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 9/11
2:29 pm-11:05 pm
3 stops42h 36m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$619
Quickest round-trip
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 10/16
6:21 am-5:20 pm
1 stop20h 59m
Incheon Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$647
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Wed 9/30
6:30 am-12:25 am
2 stops27h 55m
Incheon Intl
Wed 10/7
8:00 am-11:59 pm
2 stops29h 59m
$1,091
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Mon 10/26
6:04 am-12:40 am
2 stops28h 36m
Incheon Intl
Wed 11/25
7:35 pm-4:34 pm
2 stops35h 59m
$1,091
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Thu 9/24
6:29 am-5:30 pm
1 stop21h 01m
Incheon Intl
Mon 9/28
7:35 pm-11:59 pm
1 stop18h 24m
$1,108
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Mon 10/5
1:06 pm-12:25 am
2 stops45h 19m
Incheon Intl
Tue 11/3
1:55 am-7:22 pm
2 stops32h 27m
$1,135
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 2/26
7:01 pm-1:50 pm
2 stops27h 49m
Incheon Intl
Tue 6/22
8:00 am-6:39 pm
2 stops24h 39m
$1,141
St. LouisIncheon
STL Lambert-St Louis - ICN Incheon Intl
STLICN
Lambert-St Louis
Fri 10/16
6:04 am-12:25 am
2 stops28h 21m
Incheon Intl
Sun 10/25
7:35 pm-8:57 pm
2 stops39h 22m
$1,141
Showing 1-10 of 16 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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
What is the cheapest month to book a flight from St. Louis to Incheon Intl Airport?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Incheon Intl Airport (average of $865). Flying from St. Louis to Incheon Intl Airport in July is currently the most expensive (average of $1,510). 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.
How much does it cost to fly round-trip from St. Louis to Incheon Intl Airport?
Airfare is typical for this route at the moment.
St. Louis to Incheon Intl Airport flights typically cost between $916 and $1,227 in September.The cheapest round-trip price found within the last 5 days was $1,018 on Air Canada (Sep 22-Sep 29).
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 September 6, 2026.
Read reviews from past customers who have flown Korean Air,Delta, andUnited 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.
Crew
8.7
Boarding
8.5
Overall
8.4
Entertainment
8.2
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Crew
8.7
Boarding
8.5
Overall
8.4
Entertainment
8.2
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Crew
8.7
Boarding
8.5
Overall
8.4
Entertainment
8.2
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Crew
8.7
Boarding
8.5
Overall
8.4
Entertainment
8.2
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Crew
8.7
Boarding
8.5
Overall
8.4
Entertainment
8.2
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
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 locationsSeongnam
Suwon
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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 September 6, 2026.
St. Louis and Incheon Intl flights
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Other flights from St. Louis
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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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$846 | Average$1,111 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$865 | Average$1,181 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$999 | Average$1,624 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,083 | Average$1,287 | FlexibilityNo cancel fee | On-time67% |