Latest deals
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Seoul from $682

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Seoul departing on 9/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Japan Airlines Logo
9:32 am - 9:15 pm
STL
-
GMP
21h 43m
2 stops
Japan Airlines Logo
12:05 pm - 11:40 pm
GMP
-
STL
25h 35m
2 stops
$1,414Japan Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
3:19 pm - 12:50 pm
STL
-
GMP
31h 31m
2 stops
Multiple Airlines Logo
1:50 pm - 11:59 pm
GMP
-
STL
48h 09m
2 stops
$1,416Multiple Airlines
Thu, Oct 1 - Sat, Oct 10
Japan Airlines Logo
9:32 am - 9:15 pm
STL
-
GMP
21h 43m
2 stops
Japan Airlines Logo
12:05 pm - 10:59 pm
GMP
-
STL
24h 54m
2 stops
$1,475Japan Airlines
Mon, Aug 10 - Tue, Aug 25
Japan Airlines Logo
9:32 am - 9:15 pm
STL
-
GMP
21h 43m
2 stops
Japan Airlines Logo
12:05 pm - 10:59 pm
GMP
-
STL
24h 54m
2 stops
$1,581Japan Airlines
Mon, Aug 10 - Mon, Aug 24
Japan Airlines Logo
6:55 am - 9:15 pm
STL
-
GMP
24h 20m
2 stops
Japan Airlines Logo
8:00 am - 4:23 pm
GMP
-
STL
22h 23m
2 stops
$1,635Japan Airlines
Tue, Jul 28 - Thu, Aug 20
Japan Airlines Logo
6:37 am - 9:15 pm
STL
-
GMP
24h 38m
2 stops
Japan Airlines Logo
7:15 pm - 4:23 pm
GMP
-
STL
35h 08m
2 stops
$1,638Japan Airlines
Sun, Jul 26 - Wed, Aug 19
Japan Airlines Logo
6:37 am - 9:15 pm
STL
-
GMP
24h 38m
2 stops
Japan Airlines Logo
7:15 pm - 4:23 pm
GMP
-
STL
35h 08m
2 stops
$1,639Japan Airlines
Sun, Jul 26 - Wed, Aug 19
Multiple Airlines Logo
8:55 am - 10:20 pm
STL
-
GMP
23h 25m
2 stops
Multiple Airlines Logo
8:40 am - 8:22 pm
GMP
-
STL
25h 42m
2 stops
$1,662Multiple Airlines
Wed, Jul 29 - Thu, Aug 20
Multiple Airlines Logo
7:07 am - 9:15 pm
STL
-
GMP
24h 08m
2 stops
Multiple Airlines Logo
8:00 am - 4:23 pm
GMP
-
STL
22h 23m
2 stops
$1,677Multiple Airlines
Wed, Jul 29 - Thu, Aug 20
Japan Airlines Logo
9:08 am - 9:15 pm
STL
-
GMP
22h 07m
2 stops
Japan Airlines Logo
8:00 am - 7:51 pm
GMP
-
STL
25h 51m
2 stops
$1,706Japan Airlines
Tue, Jul 28 - Thu, Aug 20

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Japan Airlines flights from St. Louis to Seoul Gimpo Intl Airport

Our best Japan Airlines deals on St. Louis to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Sep 8
STL9:32 amLambert-St Louis
21h 43m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Sep 15
GMP12:05 pmSeoul Gimpo Intl
25h 35m
2 stops
STL11:40 pmLambert-St Louis
$1,414
Japan Airlines
Sep 8
STL9:32 amLambert-St Louis
21h 43m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Sep 15
GMP12:05 pmSeoul Gimpo Intl
25h 35m
2 stops
STL11:40 pmLambert-St Louis
$1,439
Japan Airlines
Aug 10
STL9:32 amLambert-St Louis
21h 43m
2 stops
GMP9:15 pmSeoul Gimpo Intl
Aug 25
GMP12:05 pmSeoul Gimpo Intl
24h 54m
2 stops
STL10:59 pmLambert-St Louis
$1,475

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Seoul Gimpo Intl Airport 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, momondo users made 832,500 searches. Data last updated June 23, 2026.
Use the filters below to find and compare flights from St. Louis to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 9/8

9:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

Tue 9/15

12:05 pm-11:40 pm

2 stops25h 35m

$1,414

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 10/1

3:19 pm-12:50 pm

2 stops31h 31m

Seoul Gimpo Intl

Sat 10/10

1:50 pm-11:59 pm

2 stops48h 09m

$1,416

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 8/10

9:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

Tue 8/25

12:05 pm-10:59 pm

2 stops24h 54m

$1,475

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 8/10

9:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

Mon 8/24

12:05 pm-10:59 pm

2 stops24h 54m

$1,581

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 7/28

6:55 am-9:15 pm

2 stops24h 20m

Seoul Gimpo Intl

Thu 8/20

8:00 am-4:23 pm

2 stops22h 23m

$1,635

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 7/26

6:37 am-9:15 pm

2 stops24h 38m

Seoul Gimpo Intl

Wed 8/19

7:15 pm-4:23 pm

2 stops35h 08m

$1,638

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 7/26

6:37 am-9:15 pm

2 stops24h 38m

Seoul Gimpo Intl

Wed 8/19

7:15 pm-4:23 pm

2 stops35h 08m

$1,639

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 7/29

8:55 am-10:20 pm

2 stops23h 25m

Seoul Gimpo Intl

Thu 8/20

8:40 am-8:22 pm

2 stops25h 42m

$1,662
Quickest round-trip

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 7/29

7:07 am-9:15 pm

2 stops24h 08m

Seoul Gimpo Intl

Thu 8/20

8:00 am-4:23 pm

2 stops22h 23m

$1,677

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 7/28

9:08 am-9:15 pm

2 stops22h 07m

Seoul Gimpo Intl

Thu 8/20

8:00 am-7:51 pm

2 stops25h 51m

$1,706

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

When to book flights from St. Louis to Seoul Gimpo Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Seoul Gimpo Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Seoul Gimpo Intl Airport (STL to GMP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Seoul Gimpo Intl Airport

Fastest flight time

21h 43m

Direct flights

None
The fastest flight from St. Louis to Seoul Gimpo Intl Airport takes 21h 43m
There are no direct flights from St. Louis to Seoul Gimpo Intl Airport. There are no popular flight routes from St. Louis to Seoul Gimpo Intl Airport.
Search flight deals

Frequently asked questions about flying from St. Louis to Seoul Gimpo Intl Airport

  • How far is Lambert-St Louis to Seoul Gimpo Intl by plane?

    There are 6665.9 mi between Lambert-St Louis and Seoul Gimpo Intl. In terms of flight time, this usually takes a little over 21h 43m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Seoul Gimpo Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Seoul Gimpo Intl Airport refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Seoul Gimpo Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Seoul Gimpo Intl Airport.

  • What documentation or ID do you need to fly to Seoul Gimpo Intl Airport?

    The travel and health documents you'll need for your trip to Seoul Gimpo Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seoul Gimpo Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from St. Louis to Seoul Gimpo Intl Airport

  • How do I get Price Alerts for flights from St. Louis to Seoul Gimpo Intl Airport?

    Search flight deals from St. Louis to Seoul Gimpo Intl Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from St. Louis to Seoul Gimpo Intl Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Seoul?

It is quick and easy to find St. Louis to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

Can I find flights from St. Louis to Seoul with flexible booking policies on momondo?

All flight searches from St. Louis to Seoul on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Seoul?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from St. Louis.

I’m not ready to book a flight from St. Louis to Seoul right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seoul from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Seoul Gimpo Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 7/23
Thu 7/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo
Flights to Incheon Intl Airportfrom $657