$625+ Cheap flights from Seoul (SEL) 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — STL
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to St. Louis 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 Seoul to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Seoul to St. LouisExplore the most affordable flight options available from Seoul to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Seoul to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This Air Canada deal was found by Cheapflights users on 10/31. 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 10/31![Air Canada logo]()
$1,340
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:55 pm -
3 stops31h 56m
Sat 1/27:03 pm -
3 stops31h 07m
Deal found 11/3![Multiple Airlines logo]()
$1,409
This Air Canada deal was found by Cheapflights users on 11/3. 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 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
Tue 1/54:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,420
This Air Canada deal was found by Cheapflights users on 11/1. 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 12/186:55 pm -
2 stops35h 31m
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/1![Air Canada logo]()
$1,448
This Air Canada deal was found by Cheapflights users on 11/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:05 pm -
1 stop34h 21m
Tue 1/54:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,481
This Air Canada deal was found by Cheapflights users on 11/3. 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 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
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,484
Best flights from Seoul to St. LouisDiscover carefully curated flight deals from Seoul to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Seoul to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Air Canada deal was found by Cheapflights users on 10/31. 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 10/31![Air Canada logo]()
$1,340
This United Airlines deal was found by Cheapflights users on 10/31. 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 10/31![United Airlines logo]()
$1,537
This Delta deal was found by Cheapflights users on 10/31. 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 12/226:40 pm -
1 stop21h 06m
Tue 1/125:27 pm -
1 stop31h 23m
Deal found 10/31![Delta logo]()
$1,537
This American Airlines deal was found by Cheapflights users on 11/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/55:50 pm -
2 stops20h 04m
Fri 4/237:12 am -
1 stop18h 33m
Deal found 11/1![American Airlines logo]()
$1,607
This WhyPayMore deal was found by Cheapflights users on 11/2. 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 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 11/2![Multiple Airlines logo]()
$1,658
This Orbitz deal was found by Cheapflights users on 11/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:05 pm -
1 stop34h 21m
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/1![Air Canada logo]()
$1,477
This Air Canada deal was found by Cheapflights users on 11/3. 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 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 11/3![Air Canada logo]()
$1,537
Last-minute flights from Seoul to St. LouisDiscover last-minute flight deals from Seoul to St. Louis. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to St. Louis. Data last updated November 4, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:55 pm -
3 stops31h 56m
Sat 1/27:03 pm -
3 stops31h 07m
Deal found 11/3![Multiple Airlines logo]()
$1,409
This Air Canada deal was found by Cheapflights users on 11/3. 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 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
Tue 1/54:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,420
This Air Canada deal was found by Cheapflights users on 11/1. 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 12/186:55 pm -
2 stops35h 31m
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/1![Air Canada logo]()
$1,448
This Air Canada deal was found by Cheapflights users on 11/3. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:05 pm -
1 stop34h 21m
Tue 1/54:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,481
This Air Canada deal was found by Cheapflights users on 11/3. 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 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
Sat 1/24:05 pm -
2 stops34h 05m
Deal found 11/3![Air Canada logo]()
$1,484
This Air Canada deal was found by Cheapflights users on 10/31. 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 10/31![Air Canada logo]()
$1,340
One-way flights from Seoul to St. LouisSearch for one-way flight options from Seoul to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Seoul to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/17:45 pm -
2 stops53h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$625
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:45 pm -
2 stops29h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$695
This Travelocity deal was found by Cheapflights users on 11/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/18:10 pm -
1 stop34h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Air Canada logo]()
$911
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/156:50 pm -
1 stop31h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![American Airlines logo]()
$993
Find flight deals from Seoul to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,340 (Air Canada) |
One-way from | $625 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul 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 4, 2026.
Use the filters below to find and compare flights from Seoul 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
Mon 2/1
7:45 pm-10:20 am
2 stops53h 35m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$625
Quickest round-trip
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Fri 1/15
7:45 pm-10:20 am
2 stops29h 35m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$695
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 2/1
8:10 pm-3:26 pm
1 stop34h 16m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$911
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Fri 1/15
6:50 pm-10:52 am
1 stop31h 02m
Lambert-St Louis
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$993
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Tue 12/22
6:55 pm-3:26 pm
2 stops35h 31m
Lambert-St Louis
Tue 1/12
4:05 pm-5:10 pm
2 stops34h 05m
$1,340
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Fri 12/18
8:05 pm-3:26 pm
1 stop34h 21m
Lambert-St Louis
Sat 1/2
4:05 pm-5:10 pm
2 stops34h 05m
$1,477
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Tue 12/22
12:45 pm-7:02 pm
2 stops21h 17m
Lambert-St Louis
Tue 1/12
1:17 pm-5:40 am
3 stops25h 23m
$1,537
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Tue 12/22
6:40 pm-12:46 am
1 stop21h 06m
Lambert-St Louis
Tue 1/12
5:27 pm-3:50 pm
1 stop31h 23m
$1,537
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Tue 1/12
6:55 pm-3:26 pm
2 stops35h 31m
Lambert-St Louis
Tue 2/16
4:05 pm-5:10 pm
2 stops34h 05m
$1,537
IncheonSt. Louis
ICN Incheon Intl - STL Lambert-St Louis
ICNSTL
Incheon Intl
Mon 4/5
5:50 pm-11:54 pm
2 stops20h 04m
Lambert-St Louis
Fri 4/23
7:12 am-3:45 pm
1 stop18h 33m
$1,607
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Seoul 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 Seoul to St. Louis in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 Seoul-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seoul-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 Seoul-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 Seoul to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Seoul with our price prediction graph.
SEL-STL
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 Seoul to St. Louis
SEL-STL
ICN-STL
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Seoul 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
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Edwardsville
Glencoe
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