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Gimpo Intl

$888+ Cheap flights from St. Louis (STL) to Gimpo Intl (GMP)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GMP
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheap 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 September 19, 2025.

Round-trip from

$1,667
(lastminute.com)

One-way from

$1,107
(Japan Airlines)

Popular in

August

Cheapest in

October

Average price

$911
From Lambert-St Louis to Seoul Gimpo Intl
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One-way flight from Lambert-St Louis to Seoul Gimpo Intl
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Highest demand for flights based on searches. 10% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 19, 2025.

This Ticket deal was found by Cheapflights users on 9/17. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:23 amSTL - GMP
2 stops24h 27mJapan Airlines
Mon 10/67:20 pmGMP - STL
2 stops39h 06mJapan Airlines
Deal found 9/17$888
This Ovago deal was found by Cheapflights users on 9/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:20 amSTL - GMP
2 stops25h 30mJapan Airlines
Wed 10/157:55 amGMP - STL
2 stops29h 31mJapan Airlines
Deal found 9/17$1,358
This lastminute.com deal was found by Cheapflights users on 9/18. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:00 amSTL - GMP
2 stops24h 05mJapan Airlines
Sun 11/912:05 pmGMP - STL
2 stops40h 35mJapan Airlines
Deal found 9/18$1,667
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:15 amSTL - GMP
2 stops25h 15mANA
Tue 11/257:50 pmGMP - STL
2 stops30h 01mANA
Deal found 9/16$1,923
This Ovago deal was found by Cheapflights users on 9/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:39 amSTL - GMP
2 stops25h 26mJapan Airlines
Fri 11/77:40 pmGMP - STL
2 stops43h 02mJapan Airlines
Deal found 9/16$1,946
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:06 pmSTL - GMP
2 stops38h 14mJapan Airlines
Sat 11/88:00 amGMP - STL
2 stops30h 42mJapan Airlines
Deal found 9/17$1,951
This Expedia deal was found by Cheapflights users on 9/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:49 amSTL - GMP
2 stops23h 01mJapan Airlines
Wed 10/227:20 pmGMP - STL
2 stops39h 06mJapan Airlines
Deal found 9/17$1,966
This Japan Airlines deal was found by Cheapflights users on 9/16. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:39 amSTL - GMP
2 stops25h 26mMultiple Airlines
Fri 11/78:00 amGMP - STL
2 stops22h 29mMultiple Airlines
Deal found 9/16$2,136
This Ovago deal was found by Cheapflights users on 9/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:00 amSTL - GMP
2 stops24h 05mJapan Airlines
Sun 11/237:40 pmGMP - STL
2 stops43h 02mJapan Airlines
Deal found 9/17$2,142
This Ovago deal was found by Cheapflights users on 9/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amSTL - GMP
2 stops24h 05mJapan Airlines
Tue 11/257:40 pmGMP - STL
2 stops43h 02mJapan Airlines
Deal found 9/18$2,143
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:39 amSTL - GMP
2 stops38h 06mJapan Airlines
Thu 10/237:55 amGMP - STL
2 stops26h 31mJapan Airlines
Deal found 9/16$2,526

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 September 19, 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 11/19

6:15 am-10:30 pm

2 stops25h 15m

Seoul Gimpo Intl

Tue 11/25

7:50 pm-10:51 am

2 stops30h 01m

$1,923

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Fri 10/31

6:39 am-10:05 pm

2 stops25h 26m

Seoul Gimpo Intl

Fri 11/7

7:40 pm-11:42 pm

2 stops43h 02m

$1,946

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 11/1

2:06 pm-6:20 pm

2 stops38h 14m

Seoul Gimpo Intl

Sat 11/8

8:00 am-11:42 pm

2 stops30h 42m

$1,951

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 10/15

8:49 am-9:50 pm

2 stops23h 01m

Seoul Gimpo Intl

Wed 10/22

7:20 pm-8:26 pm

2 stops39h 06m

$1,966

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Fri 10/31

6:39 am-10:05 pm

2 stops25h 26m

Seoul Gimpo Intl

Fri 11/7

8:00 am-3:29 pm

2 stops22h 29m

$2,136

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Fri 11/7

7:00 am-10:05 pm

2 stops24h 05m

Seoul Gimpo Intl

Sun 11/23

7:40 pm-11:42 pm

2 stops43h 02m

$2,142

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 10/16

6:39 am-10:45 am

2 stops38h 06m

Seoul Gimpo Intl

Thu 10/23

7:55 am-8:26 pm

2 stops26h 31m

$2,526

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 11/1

12:21 pm-10:05 pm

2 stops19h 44m

Seoul Gimpo Intl

Sat 11/8

8:00 am-7:30 pm

2 stops26h 30m

$4,356

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 11/26

7:00 am-10:05 pm

2 stops24h 05m

Seoul Gimpo Intl

Tue 12/2

8:00 am-11:42 pm

2 stops30h 42m

$4,966

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 11/25

7:00 am-10:05 pm

2 stops24h 05m

Seoul Gimpo Intl

Wed 12/3

8:00 am-4:50 pm

2 stops23h 50m

$4,977

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 13 results
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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 $1,923, ANA can have you in Seoul Gimpo Intl Airport from St. Louis in 25h 15m. St. Louis and Seoul Gimpo Intl Airport are separated by a distance of 6654 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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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