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Cheap flights from Missouri to Seoul from $433

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 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:00 am - 6:35 pmSTL-ICN
21h 35m1 stop
Alaska Airlines Logo
8:35 pm - 11:55 pmICN-STL
17h 20m1 stop
$766Alaska Airlines
Find Deal
Mon, Apr 13 - Mon, Apr 20
Alaska Airlines Logo
2:55 pm - 6:35 pmSTL-ICN
37h 40m1 stop
Alaska Airlines Logo
8:35 pm - 11:55 pmICN-STL
17h 20m1 stop
$773Alaska Airlines
Find Deal
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
5:10 am - 4:45 pmSTL-ICN
20h 35m1 stop
American Airlines Logo
7:15 pm - 10:47 pmICN-STL
18h 32m1 stop
$846American Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
American Airlines Logo
5:32 am - 4:45 pmSGF-ICN
20h 13m1 stop
American Airlines Logo
7:15 pm - 10:22 pmICN-SGF
18h 07m1 stop
$846American Airlines
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Fri, Dec 5 - Fri, Dec 12
United Airlines Logo
5:00 pm - 5:40 amSTL-ICN
21h 40m1 stop
United Airlines Logo
12:45 pm - 9:00 pmICN-STL
23h 15m2 stops
$851United Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 21
Delta Logo
6:45 am - 4:25 pmSTL-ICN
19h 40m1 stop
Delta Logo
4:25 pm - 11:38 pmICN-STL
21h 13m1 stop
$866Delta
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Wed, Apr 8 - Tue, Apr 28
United Airlines Logo
1:30 pm - 4:20 amSTL-ICN
24h 50m2 stops
United Airlines Logo
11:30 am - 5:53 pmICN-STL
20h 23m1 stop
$871United Airlines
Find Deal
Thu, Apr 9 - Fri, May 1
Hawaiian Airlines Logo
7:00 am - 6:35 pmSTL-ICN
21h 35m1 stop
Hawaiian Airlines Logo
8:35 pm - 11:55 pmICN-STL
17h 20m1 stop
$886Hawaiian Airlines
Find Deal
Mon, Apr 13 - Mon, Apr 20
Delta Logo
5:05 pm - 5:45 amSGF-ICN
21h 40m1 stop
Delta Logo
7:25 pm - 9:46 pmICN-SGF
17h 21m1 stop
$961Delta
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Tue, Feb 3 - Tue, Feb 17
Hawaiian Airlines Logo
7:00 am - 6:35 pmMCI-ICN
21h 35m1 stop
Hawaiian Airlines Logo
8:35 pm - 11:41 pmICN-MCI
17h 06m1 stop
$1,253Hawaiian Airlines
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Wed, Apr 1 - Sat, Apr 11

United Airlines flights from Missouri to Incheon Intl Airport

Our best United Airlines deals on Missouri to Incheon Intl Airport flight tickets
United Airlines
Nov 7
STL6:43 pmLambert-St Louis
30h 32m
2 stops
ICN4:15 pmIncheon Intl
Nov 12
ICN12:45 pmIncheon Intl
18h 42m
1 stop
STL4:27 pmLambert-St Louis
$850
Find similar
United Airlines
Jan 31
STL5:00 pmLambert-St Louis
21h 40m
1 stop
ICN5:40 amIncheon Intl
Feb 21
ICN12:45 pmIncheon Intl
23h 15m
2 stops
STL9:00 pmLambert-St Louis
$851
Find similar
United Airlines
Nov 7
STL3:14 pmLambert-St Louis
23h 26m
2 stops
ICN5:40 amIncheon Intl
Nov 10
ICN12:45 pmIncheon Intl
18h 42m
1 stop
STL4:27 pmLambert-St Louis
$866
Find similar

Delta flights from Missouri to Incheon Intl Airport

Our best Delta deals on Missouri to Incheon Intl Airport flight tickets
Delta
Apr 8
STL6:45 amLambert-St Louis
19h 40m
1 stop
ICN4:25 pmIncheon Intl
Apr 28
ICN4:25 pmIncheon Intl
21h 13m
1 stop
STL11:38 pmLambert-St Louis
$866
Find similar
Delta
Nov 7
STL7:40 pmLambert-St Louis
29h 50m
2 stops
ICN4:30 pmIncheon Intl
Nov 12
ICN8:05 pmIncheon Intl
19h 41m
2 stops
STL12:46 amLambert-St Louis
$871
Find similar
Delta
Feb 3
SGF5:05 pmSpringfield-Branson
21h 40m
1 stop
ICN5:45 amIncheon Intl
Feb 17
ICN7:25 pmIncheon Intl
17h 21m
1 stop
SGF9:46 pmSpringfield-Branson
$961
Find similar

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 November 6, 2025.
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

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 4/13

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Mon 4/20

8:35 pm-11:55 pm

1 stop17h 20m

$766

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 3/25

2:55 pm-6:35 pm

1 stop37h 40m

Incheon Intl

Mon 3/30

8:35 pm-11:55 pm

1 stop17h 20m

$773

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 12/3

5:10 am-4:45 pm

1 stop20h 35m

Incheon Intl

Wed 12/10

7:15 pm-10:47 pm

1 stop18h 32m

$846

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Fri 12/5

5:32 am-4:45 pm

1 stop20h 13m

Incheon Intl

Fri 12/12

7:15 pm-10:22 pm

1 stop18h 07m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 1/31

5:00 pm-5:40 am

1 stop21h 40m

Incheon Intl

Sat 2/21

12:45 pm-9:00 pm

2 stops23h 15m

$851

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/8

6:45 am-4:25 pm

1 stop19h 40m

Incheon Intl

Tue 4/28

4:25 pm-11:38 pm

1 stop21h 13m

$866

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 4/9

1:30 pm-4:20 am

2 stops24h 50m

Incheon Intl

Fri 5/1

11:30 am-5:53 pm

1 stop20h 23m

$871

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 4/13

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Mon 4/20

8:35 pm-11:55 pm

1 stop17h 20m

$886

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Tue 2/3

5:05 pm-5:45 am

1 stop21h 40m

Incheon Intl

Tue 2/17

7:25 pm-9:46 pm

1 stop17h 21m

$961

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 4/1

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Sat 4/11

8:35 pm-11:41 pm

1 stop17h 06m

$1,253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 October. Flight prices, which tend to average around $866, 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 October, then departing from Missouri during the month January is also very affordable. Most momondo users find prices during this month for around $902.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Missouri to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,462. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,782. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the afternoon is the cheapest time of day to fly from Missouri to Incheon Intl Airport when you can find flight prices for as low as $1,485. Flying to Incheon Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,718 on average. Flights to Incheon Intl Airport from Missouri at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,213 when searching weeks 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 $1,065 on momondo.

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

You could potentially save up to 27% 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

Direct flights

None
There are no direct flights from Missouri to Incheon Intl Airport. There are no popular flight routes from Missouri to Incheon Intl Airport.
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  • 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
Air CanadaPriceFrom $799Free CancellationRating
7.1
10,410 reviews
Search Air Canada flights
American AirlinesPriceFrom $846Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $846Free CancellationRating
7.9
8,001 reviews
Search Delta flights
United AirlinesPriceFrom $877Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
Korean AirPriceFrom $1,046Free CancellationRating
8.4
1,160 reviews
Search Korean Air flights

Traveling to a place near Seoul?

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