$590+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
mag 10 — mag 171
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
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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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Last-minute
One-way
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 aprile 10, 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 aprile 10, 2026.
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 9/228:55 am
STL
- ICN
1 stop18h 35m
Air Canada
mar 10/65:45 pm
ICN
- STL
2 stops34h 15m
Air Canada
Deal found 4/5![Air Canada logo]()
$984
This Expedia deal was found by Cheapflights users on 4/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 5/47:05 am
STL
- ICN
2 stops43h 00m
Multiple Airlines
lun 5/118:25 am
ICN
- STL
2 stops26h 00m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,053
This Air Canada deal was found by Cheapflights users on 4/6. 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.
gio 10/294:15 pm
STL
- ICN
2 stops33h 55m
Air Canada
sab 11/76:55 pm
ICN
- STL
2 stops35h 35m
Air Canada
Deal found 4/6![Air Canada logo]()
$1,059
This Air Canada deal was found by Cheapflights users on 4/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 9/178:55 am
STL
- ICN
1 stop18h 35m
Air Canada
ven 9/257:05 pm
ICN
- STL
1 stop32h 55m
Air Canada
Deal found 4/7![Air Canada logo]()
$1,067
This Air Canada deal was found by Cheapflights users on 4/6. 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.
mer 9/212:10 pm
STL
- ICN
1 stop38h 15m
Air Canada
sab 9/125:45 pm
ICN
- STL
2 stops34h 15m
Air Canada
Deal found 4/6![Air Canada logo]()
$1,105
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 9/18:55 am
STL
- ICN
1 stop18h 35m
Air Canada
sab 9/125:45 pm
ICN
- STL
2 stops34h 15m
Air Canada
Deal found 4/5![Air Canada logo]()
$1,110
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/254:15 pm
STL
- ICN
2 stops33h 55m
Air Canada
gio 10/295:55 pm
ICN
- STL
2 stops35h 35m
Air Canada
Deal found 4/5![Air Canada logo]()
$1,119
This Justfly.com deal was found by Cheapflights users on 4/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 4/64:05 pm
STL
- ICN
1 stop35h 25m
Air Canada
mar 5/55:45 pm
ICN
- STL
2 stops40h 24m
Air Canada
Deal found 4/4![Air Canada logo]()
$1,136
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 aprile 10, 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 aprile 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 4/277:05 pm
STL
- ICN
1 stop19h 15m
United Airlines
gio 5/2811:30 am
ICN
- STL
1 stop20h 47m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,266
This Delta deal was found by Cheapflights users on 4/4. 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.
sab 4/256:00 am
STL
- ICN
2 stops21h 20m
Delta
mer 5/67:00 pm
ICN
- STL
2 stops19h 25m
Delta
Deal found 4/4![Delta logo]()
$1,271
This Air Canada deal was found by Cheapflights users on 4/4. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 6/172:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
mer 7/16:00 pm
ICN
- STL
2 stops34h 02m
Air Canada
Deal found 4/4![Air Canada logo]()
$1,457
This United Airlines deal was found by Cheapflights users on 4/6. 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.
gio 8/67:23 pm
STL
- ICN
1 stop18h 57m
United Airlines
sab 8/2211:30 am
ICN
- STL
1 stop20h 54m
United Airlines
Deal found 4/6![United Airlines logo]()
$1,266
This Delta deal was found by Cheapflights users on 4/6. 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.
gio 4/307:00 am
STL
- ICN
1 stop18h 20m
Delta
gio 5/77:40 pm
ICN
- STL
1 stop17h 41m
Delta
Deal found 4/6![Delta logo]()
$1,360
This United Airlines deal was found by Cheapflights users on 4/6. 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.
mer 8/53:10 pm
STL
- ICN
2 stops23h 10m
United Airlines
mer 8/194:50 pm
ICN
- STL
2 stops31h 19m
United Airlines
Deal found 4/6![United Airlines logo]()
$1,271
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 5/76:21 am
STL
- ICN
2 stops20h 29m
Delta
gio 5/147:40 pm
ICN
- STL
1 stop17h 41m
Delta
Deal found 4/7![Delta logo]()
$1,393
This United Airlines deal was found by Cheapflights users on 4/6. 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.
gio 4/302:35 pm
STL
- ICN
2 stops23h 45m
United Airlines
gio 5/711:30 am
ICN
- STL
1 stop20h 52m
United Airlines
Deal found 4/6![United Airlines logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 5/67:06 pm
STL
- ICN
1 stop19h 14m
United Airlines
mer 5/1311:30 am
ICN
- STL
2 stops23h 13m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,365
This United Airlines deal was found by Cheapflights users on 4/6. 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.
gio 5/75:59 pm
STL
- ICN
2 stops20h 21m
United Airlines
gio 5/1411:30 am
ICN
- STL
2 stops22h 21m
United Airlines
Deal found 4/6![United Airlines logo]()
$1,365
This United Airlines deal was found by Cheapflights users on 4/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 7/17:23 pm
STL
- ICN
1 stop18h 57m
United Airlines
mar 7/144:50 pm
ICN
- STL
2 stops35h 26m
United Airlines
Deal found 4/4![United Airlines logo]()
$1,433
Last-minute flights from St. Louis to Incheon IntlDiscover last-minute flight deals from St. Louis to Incheon Intl. Data last updated aprile 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Incheon Intl. Data last updated aprile 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/156:19 am
STL
- ICN
1 stop21h 01m
Delta
mer 4/227:20 pm
ICN
- STL
1 stop19h 05m
Delta
Deal found 4/7![Delta logo]()
$1,266
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 5/37:05 am
STL
- ICN
1 stop20h 25m
Air Canada
dom 5/105:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 4/5![Air Canada logo]()
$1,175
This Expedia deal was found by Cheapflights users on 4/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 5/47:05 am
STL
- ICN
2 stops43h 00m
Multiple Airlines
lun 5/118:25 am
ICN
- STL
2 stops26h 00m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,053
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 5/42:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
gio 5/75:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 4/5![Air Canada logo]()
$1,218
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 5/62:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
mer 5/135:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 4/5![Air Canada logo]()
$1,228
This Air Canada deal was found by Cheapflights users on 4/8. 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.
mer 5/62:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
sab 5/165:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Deal found 4/8![Air Canada logo]()
$1,238
This Air Canada deal was found by Cheapflights users on 4/8. 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.
mer 5/62:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
gio 5/147:05 pm
ICN
- STL
1 stop39h 04m
Air Canada
Deal found 4/8![Air Canada logo]()
$1,264
This Air Canada deal was found by Cheapflights users on 4/6. 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.
lun 5/117:05 am
STL
- ICN
1 stop20h 25m
Air Canada
mar 6/236:00 pm
ICN
- STL
1 stop40h 25m
Air Canada
Deal found 4/6![Air Canada logo]()
$1,170
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 aprile 10, 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 aprile 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
ven 5/88:08 pm
STL
- ICN
3 stops57h 07m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
sab 5/98:08 pm
STL
- ICN
3 stops57h 07m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$591
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/47:05 pm
STL
- ICN
1 stop29h 05m
Delta
Deal found 4/7![Delta logo]()
$618
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 5/18:23 pm
STL
- ICN
3 stops35h 17m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$631
This KAYAK deal was found by Cheapflights users on 4/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/45:20 am
STL
- ICN
2 stops19h 40m
Asiana Airlines
Deal found 4/7![Asiana Airlines logo]()
$638
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
gio 5/76:55 pm
STL
- ICN
3 stops58h 20m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$645
This Air Canada deal was found by Cheapflights users on 4/9. 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.
mar 4/284:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Deal found 4/9![Air Canada logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 5/185:27 pm
STL
- ICN
2 stops38h 13m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$676
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 aprile 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $984 (Air Canada) |
One-way from | $590 (Kiwi.com) |
Popular in | July |
Cheapest in | December |
Average price | $921 |
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 aprile 10, 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 - ICN
STLICN
Lambert-St Louis
lun 4/27
7:05 pm-4:20 am
1 stop19h 15m
Incheon Intl
gio 5/28
11:30 am-6:17 pm
1 stop20h 47m
$1,266
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
gio 8/6
7:23 pm-4:20 am
1 stop18h 57m
Incheon Intl
sab 8/22
11:30 am-6:24 pm
1 stop20h 54m
$1,266
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
sab 4/25
6:00 am-5:20 pm
2 stops21h 20m
Incheon Intl
mer 5/6
7:00 pm-12:25 am
2 stops19h 25m
$1,271
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
mer 8/5
3:10 pm-4:20 am
2 stops23h 10m
Incheon Intl
mer 8/19
4:50 pm-10:09 am
2 stops31h 19m
$1,271
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
gio 4/30
2:35 pm-4:20 am
2 stops23h 45m
Incheon Intl
gio 5/7
11:30 am-6:22 pm
1 stop20h 52m
$1,318
Quickest round-trip
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
gio 4/30
7:00 am-3:20 pm
1 stop18h 20m
Incheon Intl
gio 5/7
7:40 pm-11:21 pm
1 stop17h 41m
$1,360
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
mer 5/6
7:06 pm-4:20 am
1 stop19h 14m
Incheon Intl
mer 5/13
11:30 am-8:43 pm
2 stops23h 13m
$1,365
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
gio 5/7
5:59 pm-4:20 am
2 stops20h 21m
Incheon Intl
gio 5/14
11:30 am-7:51 pm
2 stops22h 21m
$1,365
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
gio 5/7
6:21 am-4:50 pm
2 stops20h 29m
Incheon Intl
gio 5/14
7:40 pm-11:21 pm
1 stop17h 41m
$1,393
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
mer 7/1
7:23 pm-4:20 am
1 stop18h 57m
Incheon Intl
mar 7/14
4:50 pm-2:16 pm
2 stops35h 26m
$1,433
Showing 1-10 of 22 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 April.
| 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
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 $667). Flying from St. Louis to Incheon Intl Airport in July is currently the most expensive (average of $1,250). 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?
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 aprile 10, 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.
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Entertainment
8.2
Food
8.1
Boarding
8.5
Crew
8.7
Comfort
8.3
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Related info for your journey
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Top 5 airlines flying from St. Louis to Incheon Intl
Discover the top 5 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 aprile 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$846 | Average$1,615 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$846 | Average$1,055 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$865 | Average$1,199 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$999 | Average$1,455 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,083 | Average$1,287 | FlexibilityNo cancel fee | On-time67% |