$556+ Cheap flights from Incheon Intl (ICN) to St. Louis (STL)
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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — STL
Dec 9 — Dec 161
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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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 November 9, 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 November 9, 2026.
This Air Canada deal was found by Cheapflights users on 11/7. 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.
Tue 12/226:55 pm -
2 stops35h 31m
Tue 1/124:05 pm -
2 stops34h 05m
Deal found 11/7![Air Canada logo]()
$1,394
This Air Canada deal was found by Cheapflights users on 11/6. 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.
Thu 12/176:55 pm -
2 stops35h 31m
Sun 1/34:05 pm -
2 stops34h 05m
Deal found 11/6![Air Canada logo]()
$1,412
This Air Canada deal was found by Cheapflights users on 11/8. 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.
Sat 12/196:55 pm -
2 stops35h 31m
Thu 1/74:05 pm -
2 stops34h 05m
Deal found 11/8![Air Canada logo]()
$1,421
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Sun 12/206:55 pm -
2 stops35h 31m
Mon 5/101:25 pm -
2 stops36h 40m
Deal found 11/5![Air Canada logo]()
$1,436
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Fri 12/186:55 pm -
2 stops35h 31m
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/5![Air Canada logo]()
$1,441
This Air Canada deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:55 pm -
2 stops35h 31m
Thu 12/319:35 am -
2 stops40h 35m
Deal found 11/8![Air Canada logo]()
$1,453
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 November 9, 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 November 9, 2026.
This Air Canada deal was found by Cheapflights users on 11/6. 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.
Mon 12/216:55 pm -
2 stops35h 31m
Mon 12/284:05 pm -
2 stops34h 05m
Deal found 11/6![Air Canada logo]()
$1,412
This WhyPayMore deal was found by Cheapflights users on 11/6. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:05 pm -
1 stop34h 21m
Tue 1/124:06 pm -
1 stop34h 29m
Deal found 11/6![Multiple Airlines logo]()
$1,566
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:35 pm -
1 stop16h 06m
Thu 12/316:30 am -
1 stop18h 20m
Deal found 11/8![Delta logo]()
$1,724
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:00 pm -
1 stop26h 06m
Wed 12/306:04 am -
1 stop19h 21m
Deal found 11/8![United Airlines logo]()
$1,724
This Air Canada deal was found by Cheapflights users on 11/8. 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.
Sat 12/196:55 pm -
2 stops35h 31m
Thu 1/74:05 pm -
2 stops34h 05m
Deal found 11/8![Air Canada logo]()
$1,421
This Air Canada deal was found by Cheapflights users on 11/6. 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.
Tue 12/228:05 pm -
1 stop34h 21m
Tue 1/124:05 pm -
2 stops34h 05m
Deal found 11/6![Air Canada logo]()
$1,435
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:55 pm -
3 stops30h 58m
Fri 1/14:21 pm -
3 stops27h 59m
Deal found 11/9![Multiple Airlines logo]()
$1,650
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:45 pm -
2 stops21h 17m
Tue 1/121:17 pm -
3 stops25h 23m
Deal found 11/7![United Airlines logo]()
$1,729
This Delta deal was found by Cheapflights users on 11/6. 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.
Fri 12/187:25 pm -
1 stop41h 39m
Wed 1/66:05 am -
1 stop18h 45m
Deal found 11/6![Delta logo]()
$1,757
This Air Canada deal was found by Cheapflights users on 11/8. 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.
Tue 1/126:55 pm -
2 stops35h 31m
Tue 2/164:05 pm -
2 stops34h 05m
Deal found 11/8![Air Canada logo]()
$1,514
Last-minute flights from Incheon Intl to St. LouisDiscover last-minute flight deals from Incheon Intl to St. Louis. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Incheon Intl to St. Louis. Data last updated November 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 11/6. 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.
Thu 12/176:55 pm -
2 stops35h 31m
Sun 1/34:05 pm -
2 stops34h 05m
Deal found 11/6![Air Canada logo]()
$1,412
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Fri 12/186:55 pm -
2 stops35h 31m
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/5![Air Canada logo]()
$1,441
This Air Canada deal was found by Cheapflights users on 11/8. 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.
Sat 12/196:55 pm -
2 stops35h 31m
Thu 1/74:05 pm -
2 stops34h 05m
Deal found 11/8![Air Canada logo]()
$1,421
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Sun 12/206:55 pm -
2 stops35h 31m
Mon 5/101:25 pm -
2 stops36h 40m
Deal found 11/5![Air Canada logo]()
$1,436
This Air Canada deal was found by Cheapflights users on 11/7. 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.
Tue 12/226:55 pm -
2 stops35h 31m
Tue 1/124:05 pm -
2 stops34h 05m
Deal found 11/7![Air Canada logo]()
$1,394
This Air Canada deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:55 pm -
2 stops35h 31m
Thu 12/319:35 am -
2 stops40h 35m
Deal found 11/8![Air Canada logo]()
$1,453
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 November 9, 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 November 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/108:40 pm -
3 stops29h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$556
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Mon 11/231:10 pm -
3 stops42h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$621
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Thu 11/198:40 pm -
2 stops42h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$635
This Trip.com deal was found by Cheapflights users on 11/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:45 pm -
2 stops35h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$640
This Expedia deal was found by Cheapflights users on 11/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:05 pm -
1 stop34h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Air Canada logo]()
$904
This Air Canada deal was found by Cheapflights users on 11/8. 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.
Mon 11/238:05 pm -
1 stop34h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Air Canada logo]()
$956
This American Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:50 pm -
1 stop18h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![American Airlines logo]()
$995
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Sun 1/38:30 pm -
2 stops57h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$3,001
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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,394 (Air Canada) |
One-way from | $556 (Kiwi.com) |
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 7,457,451 searches. Data last updated November 9, 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
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Thu 12/10
8:40 pm-11:17 am
3 stops29h 37m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$556
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Thu 11/19
8:40 pm-11:59 pm
2 stops42h 19m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$635
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 12/21
7:45 pm-4:42 pm
3 stops35h 57m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$642
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 11/23
1:20 pm-4:20 pm
2 stops42h 00m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$886
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 12/21
8:05 pm-3:26 pm
1 stop34h 21m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$904
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 11/23
8:05 pm-3:26 pm
1 stop34h 21m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$956
Quickest round-trip
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 11/23
6:50 pm-11:35 pm
1 stop19h 45m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$995
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 12/21
6:55 pm-3:26 pm
2 stops35h 31m
Lambert-St Louis
Mon 12/28
4:05 pm-5:10 pm
2 stops34h 05m
$1,412
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Sat 12/19
6:55 pm-3:26 pm
2 stops35h 31m
Lambert-St Louis
Thu 1/7
4:05 pm-5:10 pm
2 stops34h 05m
$1,421
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Tue 12/22
8:05 pm-3:26 pm
1 stop34h 21m
Lambert-St Louis
Tue 1/12
4:05 pm-5:10 pm
2 stops34h 05m
$1,435
Showing 1-10 of 18 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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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.
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 locationsFairview Heights
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