Latest deals
Insights
FAQs
Reviews
Price Alerts

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.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Missouri to Seoul

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
Find Deal
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
Find Deal
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
Find Deal
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
Find Deal
Wed, Apr 1 - Sat, Apr 11

United Airlines flights from Missouri to Seoul

Our best United Airlines deals on Missouri to Seoul 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 Seoul

Our best Delta deals on Missouri to Seoul 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 Seoul 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 Seoul 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
1
2

See travel insights to Seoul from

How to get the cheapest flight ticket from Missouri to Seoul

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 Seoul?

The month of September is another great option to travel to Seoul, with average flight prices from Missouri averaging around $875.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from Missouri. The lowest ticket price found for a Tuesday departure recently was $1,367. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Sunday, with ticket prices averaging around $1,713.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Missouri in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,290 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,673 per ticket.

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul 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 Seoul from Missouri for as low as $1,065 on momondo.

Can stopping save me money on Missouri to Seoul flights?

You could potentially save up to 14% on your flight if you consider stops on a Missouri to Seoul flight.

Cheap Missouri to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Seoul

Direct flights

None
There are no direct flights from Missouri to Seoul. There are no popular flight routes from Missouri to Seoul.
Search flight deals

  • When did momondo last update prices for flights from Missouri to Seoul?

    Prices for flights from Missouri to Seoul refresh daily.

  • How many operators does momondo search for flights from Missouri to Seoul?

  • How old do you have to be to fly from Missouri to Seoul?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Seoul.

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

    The travel and health documents required for your trip to Seoul 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 Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Missouri to Seoul

Compare and see reviews for airlines that fly from Missouri to Seoul 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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to Seoul. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to Seoul with flexible booking policies on momondo?

Yes. All flights to Seoul from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Missouri 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 Missouri.

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

Of course. momondo tracks the price of Missouri to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Seoul 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
Sat 12/6
Sat 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport