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$1,241+ Cheap flights from Gimpo Intl (GMP) 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — STL
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from Gimpo Intl to St. Louis

Cheapest flights from Gimpo Intl to St. Louis
Explore the most affordable flight options available from Gimpo Intl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/29. 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.
mar. 12/238:00 amGMP - STL
2 stops17h 56mMultiple Airlines
vie. 1/25:16 amSTL - GMP
2 stops25h 49mMultiple Airlines
Deal found 10/29$1,492
This Expedia deal was found by Cheapflights users on 10/29. 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.
sáb. 12/137:50 pmGMP - STL
2 stops31h 25mANA
sáb. 12/208:05 amSTL - GMP
2 stops23h 30mANA
Deal found 10/29$2,562

Cheap flight deals from Gimpo Intl to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Gimpo Intl (GMP) 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 octubre 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,235
(American Airlines)
Provider with most accurate pricing for Seoul Gimpo Intl-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Seoul Gimpo Intl-Lambert-St Louis flights.
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From Seoul Gimpo Intl to Lambert-St Louis
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Gimpo 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 octubre 30, 2025.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to St. Louis that are best for you.

Fly from

Gimpo Intl

Fly to

St. Louis

Route

Depart

Return

Price

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

jue. 2/19

7:50 pm-12:25 pm

2 stops31h 35m

Lambert-St Louis

lun. 2/23

11:25 am-11:20 am

2 stops32h 55m

$1,241

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

sáb. 4/11

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

mar. 4/21

6:30 am-9:50 pm

2 stops25h 20m

$1,408

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

mar. 12/23

8:00 am-10:56 am

2 stops17h 56m

Lambert-St Louis

vie. 1/2

5:16 am-10:05 pm

2 stops25h 49m

$1,492

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

sáb. 12/13

7:50 pm-12:15 pm

2 stops31h 25m

Lambert-St Louis

sáb. 12/20

8:05 am-10:35 pm

2 stops23h 30m

$2,562

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

sáb. 12/20

7:50 pm-2:26 pm

2 stops33h 36m

$1,562

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

  • Most accurate provider: When it comes to deals on Seoul Gimpo 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 Seoul Gimpo Intl Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul Gimpo Intl Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul Gimpo 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 Seoul Gimpo 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 Gimpo Intl to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Gimpo Intl with our price prediction graph.
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 Gimpo 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.

  • What airport do you fly into for flights to St. Louis from Seoul Gimpo Intl?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Seoul Gimpo Intl to St. Louis. 0 airlines have flights to Lambert-St Louis from Seoul Gimpo Intl on a regular basis. Booking flights from Seoul Gimpo Intl to Lambert-St Louis should not be difficult; the airport handles an average of 0 inbound flights from Seoul Gimpo Intl per day.

  • How long is the flight from Seoul Gimpo Intl Airport to St. Louis?

    Departing from Seoul Gimpo Intl Airport to St. Louis will take you 20h 31m. The distance from Seoul Gimpo Intl Airport to St. Louis is about 6654 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Gimpo Intl to St. Louis that include hotel bookings?

    Yes. In addition to deals on Gimpo Intl to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gimpo Intl to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gimpo Intl to St. Louis.

  • Can I find deals for business class flights from Gimpo Intl to St. Louis?

    Yes. Cheapflights offers flight deals from Gimpo Intl to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
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Farmington
Festus

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