What is the cheapest airline that flies from Seoul Gimpo Intl to Lambert-St Louis?

Japan Airlines and ANA are the most popular carriers operating from Seoul Gimpo Intl to Lambert-St Louis

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

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

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$928 Cheap Flights from Seoul Gimpo Intl Airport to St. Louis in 2025/26

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Find the cheapest flights from Seoul Gimpo Intl Airport to St. Louis

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:05 pm - 11:16 pm

GMP

STL

25h 11m2 stops

7:20 am - 6:00 pm

STL

GMP

20h 40m2 stops

$1,414Japan Airlines

Sat, Apr 11 - Tue, Apr 21

7:55 am - 11:16 pm

GMP

STL

29h 21m2 stops

7:20 am - 9:50 pm

STL

GMP

24h 30m2 stops

$1,486Japan Airlines

Sat, Apr 11 - Tue, Apr 21

7:55 am - 11:16 pm

GMP

STL

29h 21m2 stops

7:20 am - 9:50 pm

STL

GMP

24h 30m2 stops

$1,489Japan Airlines

Sat, Apr 11 - Tue, Apr 21

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

Our best Japan Airlines deals on Seoul Gimpo Intl Airport to St. Louis flight tickets

Japan Airlines

Apr 11

GMP12:05 pmSeoul Gimpo Intl

25h 11m

2 stops

STL11:16 pmLambert-St Louis

Apr 21

STL7:20 amLambert-St Louis

20h 40m

2 stops

GMP6:00 pmSeoul Gimpo Intl

$1,414

Find similar

Japan Airlines

Apr 11

GMP7:55 amSeoul Gimpo Intl

29h 21m

2 stops

STL11:16 pmLambert-St Louis

Apr 21

STL7:20 amLambert-St Louis

24h 30m

2 stops

GMP9:50 pmSeoul Gimpo Intl

$1,486

Find similar

Japan Airlines

Apr 11

GMP7:55 amSeoul Gimpo Intl

29h 21m

2 stops

STL11:16 pmLambert-St Louis

Apr 21

STL7:20 amLambert-St Louis

24h 30m

2 stops

GMP9:50 pmSeoul Gimpo Intl

$1,489

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

12:05 pm-11:16 pm

2 stops25h 11m

Lambert-St Louis

Tue 4/21

7:20 am-6:00 pm

2 stops20h 40m

$1,414

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:55 am-11:16 pm

2 stops29h 21m

Lambert-St Louis

Tue 4/21

7:20 am-9:50 pm

2 stops24h 30m

$1,486

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 4/11

7:55 am-11:16 pm

2 stops29h 21m

Lambert-St Louis

Tue 4/21

7:20 am-9:50 pm

2 stops24h 30m

$1,489

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 4/6

7:55 am-7:29 pm

2 stops25h 34m

$928

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 1/15

12:05 pm-11:59 pm

2 stops26h 54m

$1,029

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Sat 1/3

12:05 pm-11:51 pm

2 stops26h 46m

$2,146

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 3/2

7:50 pm-10:36 am

2 stops29h 46m

$6,388

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $1,203. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,719. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Seoul Gimpo Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,112 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,719 per ticket.

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

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

Estimated round-trip price

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

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

Fastest flight time	22h 16m
Direct flights	None

The fastest flight from Seoul Gimpo Intl Airport to St. Louis takes 22h 16m

There are no direct flights from Seoul Gimpo Intl Airport to St. Louis. There are no popular flight routes from Seoul Gimpo Intl Airport to St. Louis.

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How far is Seoul Gimpo Intl to Lambert-St Louis by plane?
The straight-line distance from Seoul Gimpo Intl to Lambert-St Louis is 6665.9 mi. In terms of flight time, this usually takes a little over 22h 16m.
When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Lambert-St Louis Airport?
Prices for flights from Seoul Gimpo Intl Airport to Lambert-St Louis Airport refresh daily.
How old do you have to be to fly from Seoul Gimpo Intl Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

O'Fallon

Florissant

Fenton

St. Peters

Wentzville

Collinsville

Alton

Farmington

Clayton

Festus

Glencoe

Eureka

Edwardsville

Litchfield

Shrewsbury

Why use momondo?

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

It is quick and easy to find Seoul to St. Louis 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 St. Louis that suits you.

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

Yes. momondo allows you to filter the results for Seoul to St. Louis flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to St. Louis from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Seoul to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.