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Cheap flights from Missouri to Seoul from $518

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Seoul departing on 4/7. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:55 am - 5:30 pm
STL
-
ICN
18h 35m
1 stop
Air Canada Logo
7:05 pm - 2:00 pm
ICN
-
STL
32h 55m
1 stop
$1,021Air Canada
Thu, Sep 17 - Fri, Sep 25
Air Canada Logo
8:55 am - 5:30 pm
STL
-
ICN
18h 35m
1 stop
Air Canada Logo
6:00 pm - 2:00 pm
ICN
-
STL
34h 00m
2 stops
$1,024Air Canada
Thu, Sep 17 - Fri, Sep 25
Delta Logo
6:48 am - 4:25 pm
STL
-
ICN
19h 37m
1 stop
Delta Logo
7:20 pm - 12:25 am
ICN
-
STL
19h 05m
1 stop
$1,066Delta
Wed, Apr 15 - Wed, Apr 22
Delta Logo
6:19 am - 4:50 pm
STL
-
ICN
20h 31m
2 stops
Delta Logo
7:20 pm - 12:25 am
ICN
-
STL
19h 05m
1 stop
$1,071Delta
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
6:11 pm - 3:45 pm
STL
-
ICN
31h 34m
1 stop
American Airlines Logo
5:50 pm - 10:59 pm
ICN
-
STL
19h 09m
1 stop
$1,073American Airlines
Sat, Apr 25 - Wed, May 6
American Airlines Logo
6:11 pm - 3:45 pm
STL
-
ICN
31h 34m
1 stop
American Airlines Logo
5:50 pm - 11:56 pm
ICN
-
STL
20h 06m
2 stops
$1,077American Airlines
Sat, May 2 - Tue, May 12
United Airlines Logo
8:30 am - 4:20 am
STL
-
ICN
29h 50m
1 stop
United Airlines Logo
11:30 am - 8:54 pm
ICN
-
STL
23h 24m
2 stops
$1,080United Airlines
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
7:23 pm - 4:20 am
STL
-
ICN
18h 57m
1 stop
United Airlines Logo
4:50 pm - 3:38 pm
ICN
-
STL
36h 48m
2 stops
$1,081United Airlines
Sat, Jul 25 - Fri, Aug 21
Multiple Airlines Logo
3:34 pm - 6:45 pm
MCI
-
ICN
37h 11m
2 stops
Multiple Airlines Logo
7:45 pm - 10:39 pm
ICN
-
MCI
40h 54m
2 stops
$1,146Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
2:58 pm - 11:00 am
MCI
-
ICN
30h 02m
2 stops
Multiple Airlines Logo
12:00 pm - 11:49 pm
ICN
-
MCI
49h 49m
2 stops
$1,236Multiple Airlines
Tue, May 12 - Tue, Jun 2

United Airlines flights from Missouri to Incheon Intl Airport

Our best United Airlines deals on Missouri to Incheon Intl Airport flight tickets
United Airlines
Apr 20
STL7:05 pmLambert-St Louis
19h 15m
1 stop
ICN4:20 amIncheon Intl
May 4
ICN4:50 pmIncheon Intl
26h 57m
1 stop
STL5:47 amLambert-St Louis
$966
United Airlines
Apr 20
STL4:49 pmLambert-St Louis
21h 31m
2 stops
ICN4:20 amIncheon Intl
May 4
ICN4:50 pmIncheon Intl
26h 57m
1 stop
STL5:47 amLambert-St Louis
$971
United Airlines
Apr 21
STL8:30 amLambert-St Louis
29h 50m
1 stop
ICN4:20 amIncheon Intl
Apr 28
ICN11:30 amIncheon Intl
23h 24m
2 stops
STL8:54 pmLambert-St Louis
$1,080

Asiana Airlines flights from Missouri to Incheon Intl Airport

Our best Asiana Airlines deals on Missouri to Incheon Intl Airport flight tickets
Asiana Airlines
Apr 20
STL4:49 pmLambert-St Louis
21h 31m
2 stops
ICN4:20 amIncheon Intl
May 4
ICN4:50 pmIncheon Intl
30h 40m
2 stops
STL9:30 amLambert-St Louis
$991
Asiana Airlines
Apr 25
STL8:30 amLambert-St Louis
29h 50m
1 stop
ICN4:20 amIncheon Intl
May 6
ICN4:50 pmIncheon Intl
26h 57m
1 stop
STL5:47 amLambert-St Louis
$1,182
Asiana Airlines
Aug 17
STL1:18 pmLambert-St Louis
25h 02m
2 stops
ICN4:20 amIncheon Intl
Aug 21
ICN4:50 pmIncheon Intl
36h 48m
1 stop
STL3:38 pmLambert-St Louis
$1,192

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Incheon 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 March 27, 2026.
Use the filters below to find and compare flights from Missouri to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 9/17

8:55 am-5:30 pm

1 stop18h 35m

Incheon Intl

Fri 9/25

7:05 pm-2:00 pm

1 stop32h 55m

$1,021

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 9/17

8:55 am-5:30 pm

1 stop18h 35m

Incheon Intl

Fri 9/25

6:00 pm-2:00 pm

2 stops34h 00m

$1,024
Quickest round-trip

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/15

6:48 am-4:25 pm

1 stop19h 37m

Incheon Intl

Wed 4/22

7:20 pm-12:25 am

1 stop19h 05m

$1,066

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/15

6:19 am-4:50 pm

2 stops20h 31m

Incheon Intl

Wed 4/22

7:20 pm-12:25 am

1 stop19h 05m

$1,071

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 4/25

6:11 pm-3:45 pm

1 stop31h 34m

Incheon Intl

Wed 5/6

5:50 pm-10:59 pm

1 stop19h 09m

$1,073

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 5/2

6:11 pm-3:45 pm

1 stop31h 34m

Incheon Intl

Tue 5/12

5:50 pm-11:56 pm

2 stops20h 06m

$1,077

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 4/21

8:30 am-4:20 am

1 stop29h 50m

Incheon Intl

Tue 4/28

11:30 am-8:54 pm

2 stops23h 24m

$1,080

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 7/25

7:23 pm-4:20 am

1 stop18h 57m

Incheon Intl

Fri 8/21

4:50 pm-3:38 pm

2 stops36h 48m

$1,081

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Thu 9/17

3:34 pm-6:45 pm

2 stops37h 11m

Incheon Intl

Thu 9/24

7:45 pm-10:39 pm

2 stops40h 54m

$1,146

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Tue 5/12

2:58 pm-11:00 am

2 stops30h 02m

Incheon Intl

Tue 6/2

12:00 pm-11:49 pm

2 stops49h 49m

$1,236

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from Missouri to Incheon Intl Airport

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

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Missouri is in December. Flight prices, which tend to average around $846, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of December, then departing from Missouri during the month February is also very affordable. Most momondo users find prices during this month for around $865.

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Missouri when booking week ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,153 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Missouri for as low as $936 on momondo.

Can stopping save me money on Missouri to Incheon Intl Airport flights?

You could potentially save up to 29% on your flight if you consider stops on a Missouri to Incheon Intl Airport flight.

Cheap Missouri to Incheon Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Incheon Intl Airport

Fastest flight time

18h 00m

Direct flights

None
The fastest flight from Missouri to Incheon Intl Airport takes 18h 00m
There are no direct flights from Missouri to Incheon Intl Airport. There are no popular flight routes from Missouri to Incheon Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Missouri to Incheon Intl Airport?

    Prices for flights from Missouri to Incheon Intl Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to Incheon Intl Airport?

  • How old do you have to be to fly from Missouri to Incheon Intl 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 Missouri to Incheon Intl Airport.

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

    The travel and health documents you'll need for your trip to Incheon 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 Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Incheon Intl Airport

Compare and see reviews for airlines that fly from Missouri to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $769Free CancellationRating
7.9
8,342 reviews
Search Delta flights
American AirlinesPriceFrom $846Free CancellationRating
7.1
11,508 reviews
Search American Airlines flights
United AirlinesPriceFrom $865Free CancellationRating
7.4
9,493 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,083Free CancellationRating
7.1
10,848 reviews
Search Air Canada flights

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Suwon
Daejeon
Seongnam
Anyang

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Seoul?

It is quick and easy to find Missouri 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 Missouri to Seoul with flexible booking policies on momondo?

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

How can momondo help me find flights from Missouri to Seoul?

Once all potential Missouri to Seoul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Missouri to Seoul flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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