$710+ Cheap flights from Incheon Intl (ICN) 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — STL
Jun 12 — Jun 191
Round-trip
1 adult, Economy
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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 Incheon Intl to St. Louis
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Last-minute
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Cheapest flights from Incheon Intl to St. LouisExplore the most affordable flight options available from Incheon Intl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
Explore the most affordable flight options available from Incheon Intl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
This Ovago deal was found by Cheapflights users on 5/12. 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.
Tue 6/238:45 pm
ICN
- STL
2 stops35h 22m
WestJet
Tue 7/143:58 pm
STL
- ICN
2 stops36h 47m
WestJet
Deal found 5/12![WestJet logo]()
$1,376
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 10/286:35 pm
ICN
- STL
2 stops27h 28m
American Airlines
Sat 10/313:33 pm
STL
- ICN
1 stop34h 52m
American Airlines
Deal found 5/12![American Airlines logo]()
$1,407
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 8/256:00 am
STL
- ICN
2 stops45h 05m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,409
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:35 pm
ICN
- STL
1 stop37h 10m
Multiple Airlines
Fri 7/312:52 pm
STL
- ICN
2 stops39h 18m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,429
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/141:25 pm
STL
- ICN
2 stops37h 40m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,475
This WestJet deal was found by Cheapflights users on 5/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:45 pm
ICN
- STL
2 stops53h 49m
WestJet
Wed 6/171:59 pm
STL
- ICN
2 stops38h 46m
WestJet
Deal found 5/12![WestJet logo]()
$1,518
This Qatar Airways deal was found by Cheapflights users on 5/8. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/141:25 pm
STL
- ICN
2 stops37h 40m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$1,524
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Thu 6/47:35 pm
ICN
- STL
1 stop18h 19m
Multiple Airlines
Tue 6/96:00 am
STL
- ICN
2 stops25h 40m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,540
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/17:35 pm
ICN
- STL
1 stop33h 41m
Multiple Airlines
Mon 6/87:41 pm
STL
- ICN
2 stops35h 59m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,547
Best flights from Incheon Intl to St. LouisDiscover carefully curated flight deals from Incheon Intl to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
Discover carefully curated flight deals from Incheon Intl to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 10/286:35 pm
ICN
- STL
2 stops27h 28m
American Airlines
Sat 10/313:33 pm
STL
- ICN
1 stop34h 52m
American Airlines
Deal found 5/12![American Airlines logo]()
$1,407
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 8/256:00 am
STL
- ICN
2 stops45h 05m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,409
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:35 pm
ICN
- STL
1 stop37h 10m
Multiple Airlines
Fri 7/312:52 pm
STL
- ICN
2 stops39h 18m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,429
This WestJet deal was found by Cheapflights users on 5/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:45 pm
ICN
- STL
2 stops53h 49m
WestJet
Wed 6/171:59 pm
STL
- ICN
2 stops38h 46m
WestJet
Deal found 5/12![WestJet logo]()
$1,518
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/141:25 pm
STL
- ICN
2 stops37h 40m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,475
This Qatar Airways deal was found by Cheapflights users on 5/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/149:08 am
STL
- ICN
2 stops41h 57m
Qatar Airways
Deal found 5/10![Qatar Airways logo]()
$1,524
Last-minute flights from Incheon Intl to St. LouisDiscover last-minute flight deals from Incheon Intl to St. Louis. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Incheon Intl to St. Louis. Data last updated May 13, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/12. 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 5/185:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Sat 5/302:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
Deal found 5/12![Air Canada logo]()
$1,581
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:35 pm
ICN
- STL
1 stop37h 10m
Multiple Airlines
Fri 7/312:52 pm
STL
- ICN
2 stops39h 18m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,429
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/17:35 pm
ICN
- STL
1 stop33h 41m
Multiple Airlines
Mon 6/87:41 pm
STL
- ICN
2 stops35h 59m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,547
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Thu 6/47:35 pm
ICN
- STL
1 stop18h 19m
Multiple Airlines
Tue 6/96:00 am
STL
- ICN
2 stops25h 40m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$1,540
This Air Canada deal was found by Cheapflights users on 5/12. 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 6/45:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Tue 6/92:15 pm
STL
- ICN
2 stops35h 50m
Air Canada
Deal found 5/12![Air Canada logo]()
$1,551
This WestJet deal was found by Cheapflights users on 5/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:45 pm
ICN
- STL
2 stops53h 49m
WestJet
Wed 6/171:59 pm
STL
- ICN
2 stops38h 46m
WestJet
Deal found 5/12![WestJet logo]()
$1,518
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/141:25 pm
STL
- ICN
2 stops37h 40m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,475
This Ovago deal was found by Cheapflights users on 5/12. 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.
Tue 6/238:45 pm
ICN
- STL
2 stops35h 22m
WestJet
Tue 7/143:58 pm
STL
- ICN
2 stops36h 47m
WestJet
Deal found 5/12![WestJet logo]()
$1,376
This Qatar Airways deal was found by Cheapflights users on 5/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 8/256:00 am
STL
- ICN
2 stops45h 05m
Qatar Airways
Deal found 5/11![Qatar Airways logo]()
$1,409
This Qatar Airways deal was found by Cheapflights users on 5/8. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:20 am
ICN
- STL
2 stops36h 56m
Qatar Airways
Tue 7/141:25 pm
STL
- ICN
2 stops37h 40m
Qatar Airways
Deal found 5/8![Qatar Airways logo]()
$1,524
One-way flights from Incheon Intl to St. LouisSearch for one-way flight options from Incheon Intl to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
Search for one-way flight options from Incheon Intl to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This WestJet deal was found by Cheapflights users on 5/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:45 pm
ICN
- STL
2 stops40h 36m
WestJet
Deal found 5/12![WestJet logo]()
$710
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:00 am
ICN
- STL
3 stops50h 11m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$723
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:45 am
ICN
- STL
3 stops47h 38m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$725
This WestJet deal was found by Cheapflights users on 5/13. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:45 pm
ICN
- STL
2 stops34h 01m
WestJet
Deal found 5/13![WestJet logo]()
$738
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/52:30 pm
ICN
- STL
3 stops47h 27m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$741
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:00 am
ICN
- STL
3 stops48h 51m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$779
This KAYAK deal was found by Cheapflights users on 5/11. 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.
Thu 7/210:25 am
ICN
- STL
2 stops46h 17m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$792
Find flight deals from Incheon Intl to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) 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 May 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,376 (Ovago) |
One-way from | $710 (WestJet) |
Popular in | January |
Cheapest in | November |
Average price | $1,400 |
Cheapflights Fare Finder
Customize your flight search to find flights from Incheon Intl 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 May 13, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Wed 10/28
6:35 pm-8:03 am
2 stops27h 28m
Lambert-St Louis
Sat 10/31
3:33 pm-4:25 pm
1 stop34h 52m
$1,407
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Wed 6/24
1:20 am-12:16 am
2 stops36h 56m
Lambert-St Louis
Tue 8/25
6:00 am-5:05 pm
2 stops45h 05m
$1,409
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Fri 5/29
7:35 pm-6:45 pm
1 stop37h 10m
Lambert-St Louis
Fri 7/31
2:52 pm-8:10 pm
2 stops39h 18m
$1,429
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Mon 6/22
1:20 am-12:16 am
2 stops36h 56m
Lambert-St Louis
Tue 7/14
1:25 pm-5:05 pm
2 stops37h 40m
$1,475
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Sun 6/7
8:45 pm-12:34 pm
2 stops53h 49m
Lambert-St Louis
Wed 6/17
1:59 pm-6:45 pm
2 stops38h 46m
$1,518
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Mon 6/29
1:20 am-12:16 am
2 stops36h 56m
Lambert-St Louis
Tue 7/14
9:08 am-5:05 pm
2 stops41h 57m
$1,524
Cheapest one-way
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Fri 6/5
8:45 pm-11:21 pm
2 stops40h 36m
$710
Quickest one-way
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Fri 6/5
8:45 pm-12:06 pm
2 stops29h 21m
$794
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Wed 6/24
7:25 am-3:16 pm
3 stops45h 51m
$794
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Tue 6/16
8:45 pm-7:23 pm
2 stops36h 38m
$797
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Incheon Intl 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 Incheon Intl to St. Louis in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Incheon Intl Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Incheon Intl Airport-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 Incheon Intl Airport-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 Incheon Intl to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Incheon Intl with our price prediction graph.
ICN-STL
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 Incheon Intl Airport to St. Louis
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 May 13, 2026.
Get a feel of what it's like to fly with Delta from Incheon Intl Airport to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Incheon Intl to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Incheon Intl and St. Louis flights
Browse other Incheon Intl and St. Louis flight options. Last updated on May 13, 2026.
Other flights from Incheon Intl
Browse through other flights departing from Incheon Intl. Flights are based on user searches made on Cheapflights and were last updated on May 13, 2026.
Popular flight searches
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 13, 2026.
Top airline flying from Incheon Intl to St. Louis
Discover the top airline that operate flights from Incheon Intl 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 May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$630 | Average$835 | FlexibilityNo cancel fee | On-timeN/A |