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฿29,945 Cheap Flights from Seoul (ICN) to St. Louis (STL)

View ฿29,945 flight on Wed, 23 Sept 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Seoul (ICN) to St. Louis (STL)

Prices were available within the past 7 days and start at ฿29,945 for one-way flights and ฿36,690 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿36,690 Return, found 17 hours ago
฿36,690
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿36,690 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿37,960 Return, found 17 hours ago
฿37,960
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿37,960 found 17 hours ago
United
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿37,960 Return, found 17 hours ago
฿37,960
Return
found 17 hours ago
Select United flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿37,960 found 17 hours ago
American Airlines
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿38,480 Return, found 17 hours ago
฿38,480
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿38,480 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿38,765 Return, found 17 hours ago
฿38,765
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿38,765 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿39,570 Return, found 17 hours ago
฿39,570
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿39,570 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿41,155 Return, found 17 hours ago
฿41,155
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿41,155 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿41,960 Return, found 17 hours ago
฿41,960
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿41,960 found 17 hours ago
Asiana Airlines
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿43,420 Return, found 17 hours ago
฿43,420
Return
found 17 hours ago
Select Asiana Airlines flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿43,420 found 17 hours ago
Delta
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿46,810 Return, found 17 hours ago
฿46,810
Return
found 17 hours ago
Select Delta flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿46,810 found 17 hours ago
American Airlines
Wed, 23 Sept - Sun, 27 Sept
ICN
Seoul
STL
St. Louis
฿47,550 Return, found 17 hours ago
฿47,550
Return
found 17 hours ago
Select American Airlines flight, departing Wed, 23 Sept from Seoul to St. Louis, returning Sun, 27 Sept, priced at ฿47,550 found 17 hours ago

Frequently asked questions

How much is a flight from Incheon Airport to STL?
Round-trip flights from Incheon Intl. Airport (ICN) to Lambert-St. Louis Intl. Airport (STL) start from ฿36,690. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seoul–Incheon Intl. Airport to STL?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Seoul–Incheon Intl. Airport to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Incheon Airport to St. Louis Lambert International Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Incheon Airport to Lambert-St. Louis Intl. Airport (STL)?
The distance is around 10,800 kilometres, so fill your carry-on bag with everything you need to make your journey comfortable. Not sure what to take on board your South Korea to St. Louis flight? Earplugs, a sleep mask and a travel pillow are among the essentials.
Which airlines fly direct from ICN to St. Louis Lambert International Airport?
There are no direct flights, so you'll need to make at least one stop between Incheon Airport and STL. Make the most of the layover time to stretch your legs and freshen up.
Are Incheon Intl. Airport (ICN) to STL flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Incheon Intl. Airport (ICN) to Lambert Field last minute could save you some cash. However, you might miss out on a flight altogether! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time.

Travel information

Origin airport
Incheon Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
฿36,690
Distance
10679 km

Book with confidence

Perfect flights from Seoul to St. Louis

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seoul to St. Louis. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Incheon Intl. to Lambert-St. Louis Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿29,945 and roundtrip prices from ฿36,690. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Lambert-St. Louis Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in St. Louis.
Perfect flights from Seoul to St. Louis
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