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Gimpo Intl

$433+ Cheap flights from St. Louis (STL) to Gimpo Intl (GMP)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GMP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from St. Louis to Gimpo Intl

Cheapest flights from St. Louis to Gimpo Intl
Explore the most affordable flight options available from St. Louis to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This AranGrant deal was found by Cheapflights users on 12/9. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:00 amSTL - GMP
2 stops23h 30mMultiple Airlines
Wed 12/174:20 pmGMP - STL
2 stops22h 37mMultiple Airlines
Deal found 12/9$12,312

Find flight deals from St. Louis to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Gimpo Intl (GMP). 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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$856
(FlightHub)

One-way from

$433
(FlightHub)

Popular in

August

Cheapest in

October

Average price

$1,187
Provider with most accurate pricing for Lambert-St Louis-Seoul Gimpo Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Seoul Gimpo Intl flights.
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From Lambert-St Louis to Seoul Gimpo Intl
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One-way flight from Lambert-St Louis to Seoul Gimpo Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Gimpo Intl 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 12, 2025.
Use the filters below to find and compare flights from St. Louis to Seoul Gimpo Intl Airport that are best for you.

Fly from

St. Louis

Fly to

Gimpo Intl

Route

Depart

Return

Price

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 1/21

7:04 am-10:05 pm

2 stops24h 01m

Seoul Gimpo Intl

Tue 1/27

12:05 pm-11:59 pm

2 stops26h 54m

$856

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 3/9

7:00 am-10:05 pm

2 stops25h 05m

Seoul Gimpo Intl

Fri 3/13

8:00 am-6:03 pm

2 stops24h 03m

$920

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 1/24

7:04 am-10:05 pm

2 stops24h 01m

Seoul Gimpo Intl

Sat 1/31

12:05 pm-11:59 pm

2 stops26h 54m

$1,022

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 1/11

7:15 am-10:05 pm

2 stops23h 50m

Seoul Gimpo Intl

Sat 1/17

12:05 pm-11:59 pm

2 stops26h 54m

$1,348

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 5/28

6:30 am-9:50 pm

2 stops25h 20m

Seoul Gimpo Intl

Sat 6/13

7:55 am-1:06 pm

2 stops19h 11m

$1,444

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 3/25

6:38 am-10:05 pm

2 stops25h 27m

Seoul Gimpo Intl

Tue 4/7

7:20 pm-11:16 pm

2 stops41h 56m

$2,012

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 3/31

6:38 am-9:50 pm

2 stops25h 12m

Seoul Gimpo Intl

Wed 4/8

12:05 pm-11:16 pm

2 stops25h 11m

$2,012

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 3/30

6:38 am-6:00 pm

2 stops45h 22m

Seoul Gimpo Intl

Wed 4/8

12:05 pm-11:16 pm

2 stops25h 11m

$2,012

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 3/25

6:38 am-10:05 pm

2 stops25h 27m

Seoul Gimpo Intl

Wed 4/8

12:05 pm-11:16 pm

2 stops25h 11m

$2,012

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 3/30

3:23 pm-10:20 pm

2 stops40h 57m

Seoul Gimpo Intl

Mon 4/6

12:40 pm-12:25 pm

2 stops37h 45m

$2,111

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 16 results
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Compare providers for flights from St. Louis to Gimpo Intl

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 St. Louis to Gimpo Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 St. Louis-Seoul Gimpo Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Seoul Gimpo Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Seoul Gimpo Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Seoul Gimpo Intl Airport 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 St. Louis-Seoul Gimpo Intl Airport 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 St. Louis to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from St. Louis 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 St. Louis to Gimpo Intl. 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 from for flights from St. Louis to Seoul Gimpo Intl?

    For a flight from St. Louis to Seoul Gimpo Intl, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Seoul Gimpo Intl per day. 0 airlines have flights to Seoul Gimpo Intl from Lambert-St Louis on a regular basis.

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

    For as low as $856, Japan Airlines can have you in Seoul Gimpo Intl Airport from St. Louis in 24h 01m. St. Louis and Seoul Gimpo Intl Airport are separated by a distance of 6654 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Gimpo Intl 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

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