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$344+ Cheap flights from Missouri to Seoul (SEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SEL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Missouri to Seoul

Cheapest flights from Missouri to Seoul
Explore the most affordable flight options available from Missouri to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:29 pmMCI - ICN
1 stop33h 01mDelta
Mon 12/298:05 pmICN - MCI
1 stop18h 17mDelta
Deal found 12/17$1,301
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:00 amMCI - ICN
1 stop19h 45mAmerican Airlines
Mon 12/297:15 pmICN - MCI
1 stop17h 29mAmerican Airlines
Deal found 12/17$1,539
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/211:28 pmSGF - ICN
2 stops25h 12mUnited Airlines
Tue 12/236:00 pmICN - SGF
2 stops41h 22mUnited Airlines
Deal found 12/17$1,551
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:19 pmMCI - ICN
2 stops23h 21mUnited Airlines
Mon 12/2912:45 pmICN - MCI
2 stops22h 37mUnited Airlines
Deal found 12/17$1,595
This Ovago deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:46 pmMCI - ICN
2 stops29h 59mJapan Airlines
Mon 12/297:15 pmICN - MCI
1 stop18h 39mJapan Airlines
Deal found 12/17$1,685
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:30 amSTL - ICN
2 stops38h 45mUnited Airlines
Sat 12/2712:45 pmICN - STL
2 stops24h 37mUnited Airlines
Deal found 12/15$1,878
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:44 pmSTL - ICN
1 stop31h 01mAmerican Airlines
Sat 12/277:15 pmICN - STL
1 stop18h 41mAmerican Airlines
Deal found 12/15$2,083
This Gurufare deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:25 pmSGF - ICN
2 stops31h 20mJapan Airlines
Tue 12/237:15 pmICN - SGF
1 stop29h 46mJapan Airlines
Deal found 12/17$2,141
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:10 pmSTL - ICN
2 stops51h 10mMultiple Airlines
Sat 12/278:35 pmICN - STL
1 stop18h 15mMultiple Airlines
Deal found 12/15$2,240
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:00 pmSGF - ICN
1 stop31h 45mAmerican Airlines
Tue 12/237:15 pmICN - SGF
1 stop29h 46mAmerican Airlines
Deal found 12/17$2,302
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:45 pmSTL - ICN
2 stops34h 30mUnited Airlines
Wed 12/3112:45 pmICN - STL
2 stops24h 37mUnited Airlines
Deal found 12/16$2,339
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:50 amMCI - ICN
1 stop17h 40mDelta
Sun 12/217:30 pmICN - MCI
1 stop18h 41mDelta
Deal found 12/16$2,462

Find flight deals from Missouri to Seoul

Keep the following information in mind while searching for Missouri to Seoul flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$646
(Delta)

One-way from

$344
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,187
Provider with most accurate pricing for Lambert-St Louis-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Seoul (SEL) flights.
Search Deals
From Missouri to Seoul (SEL)
Search Deals
One-way flight from Missouri to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Missouri to Seoul that are best for you.

Fly from

Missouri

Fly to

Seoul

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 3/27

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Wed 4/8

8:35 pm-11:55 pm

1 stop17h 20m

$646

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 1/16

6:35 am-4:50 pm

1 stop19h 15m

Incheon Intl

Fri 1/23

7:40 pm-9:38 pm

1 stop16h 58m

$646

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 3/25

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Wed 4/8

8:35 pm-11:55 pm

1 stop17h 20m

$646

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 2/15

5:25 pm-5:40 am

1 stop21h 15m

Incheon Intl

Thu 2/19

12:45 pm-4:44 pm

1 stop18h 59m

$746

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Mon 2/2

6:00 am-4:45 pm

1 stop19h 45m

Incheon Intl

Tue 2/17

7:15 pm-9:21 pm

1 stop17h 06m

$746

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 1/13

6:10 am-3:30 pm

1 stop18h 20m

Incheon Intl

Tue 1/20

9:35 am-4:37 pm

1 stop22h 02m

$746

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Thu 1/15

8:00 am-4:45 pm

1 stop17h 45m

Incheon Intl

Thu 1/22

7:15 pm-10:47 pm

1 stop18h 32m

$746

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 1/31

5:04 pm-5:45 am

1 stop21h 41m

Incheon Intl

Sat 2/7

9:35 am-4:37 pm

1 stop22h 02m

$746

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Tue 2/10

6:00 am-4:45 pm

1 stop19h 45m

Incheon Intl

Tue 3/10

5:55 pm-9:20 pm

1 stop17h 25m

$746

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Mon 2/16

7:15 am-4:45 pm

1 stop18h 30m

Incheon Intl

Thu 2/26

7:15 pm-10:30 pm

1 stop18h 15m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Seoul

What is the cheapest month to book a flight from Missouri to Seoul?

Currently, April is the cheapest month in which you can book a flight from Missouri to Seoul (average of $691). Flying from Missouri to Seoul in July is currently the most expensive (average of $1,204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to SEL?

Find hourly flight availability from Missouri to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Missouri to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 8% versus a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to Seoul?

    There are many flights that can get you from Missouri to Seoul in 19h 15m. Fly via Delta, American Airlines, or Japan Airlines to get the fastest option. There are 6670 mi between Missouri and Seoul. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Missouri to Seoul?

    Most travelers choose Lambert-St Louis - Incheon Intl, Kansas City - Incheon Intl or Lambert-St Louis - Seoul Gimpo Intl when deciding on the best route from Missouri to Seoul.

  • Can I find deals for flights from Missouri to Seoul that include hotel bookings?

    Yes. In addition to deals on Missouri to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Seoul.

  • Can I find deals for business class flights from Missouri to Seoul?

    Yes. Cheapflights offers flight deals from Missouri to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Seoul?

    Currently, April is the cheapest month in which you can book a flight from Missouri to Seoul (average of $691). Flying from Missouri to Seoul in July is currently the most expensive (average of $1,204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Missouri to Seoul

Discover the top 5 airlines that operate flights from Missouri to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,102FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$846Average$1,652FlexibilityNo cancel feeOn-time71%
DeltaCheapest$846Average$1,341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$870Average$1,501FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$999Average$1,909FlexibilityNo cancel feeOn-time81%

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