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$861+ Cheap flights from Gimpo Intl (GMP) 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — STL
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap 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 December 17, 2025.

This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:05 pmGMP - STL
2 stops22h 34mJapan Airlines
Mon 1/56:20 amSTL - GMP
2 stops24h 45mJapan Airlines
Deal found 12/17$1,568

Find 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 December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,262
(Japan Airlines)

One-way from

$861
(Kiwi.com)
Provider with most accurate pricing for Seoul Gimpo Intl-Lambert-St Louis flight deals.
Search Deals
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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One-way flight 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 December 17, 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

Wed 4/1

7:55 am-1:46 pm

2 stops19h 51m

Lambert-St Louis

Sun 4/5

6:38 am-9:50 pm

2 stops49h 12m

$1,262

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Wed 5/13

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Tue 5/19

7:20 am-6:00 pm

2 stops20h 40m

$1,364

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:20 pm-11:16 pm

2 stops41h 56m

Lambert-St Louis

Tue 4/21

7:20 am-6:00 pm

2 stops20h 40m

$1,375

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Tue 5/12

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Mon 5/18

6:30 am-6:00 pm

2 stops21h 30m

$1,389

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Wed 5/13

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Mon 5/18

6:30 am-6:00 pm

2 stops21h 30m

$1,389

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 5/14

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Mon 5/18

6:30 am-6:00 pm

2 stops21h 30m

$1,389

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Tue 5/12

7:55 am-2:26 pm

2 stops20h 31m

Lambert-St Louis

Tue 5/19

6:30 am-6:00 pm

2 stops21h 30m

$1,414

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:55 am-2:03 pm

2 stops20h 08m

Lambert-St Louis

Tue 4/21

7:20 am-9:50 pm

2 stops24h 30m

$1,432

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 1/29

8:00 am-11:05 am

2 stops18h 05m

Lambert-St Louis

Thu 2/5

7:04 am-10:05 pm

2 stops24h 01m

$1,463

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Fri 1/30

8:00 am-2:47 pm

2 stops21h 47m

Lambert-St Louis

Fri 2/6

7:04 am-10:05 pm

2 stops24h 01m

$1,490

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 15 results
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Compare providers for flights from Gimpo 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 Gimpo Intl to St. Louis in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seoul Gimpo Intl Airport-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seoul Gimpo Intl Airport-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 19h 51m. The distance from Seoul Gimpo Intl Airport to St. Louis is about 6654 mi.

  • 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?

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