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$396+ Cheap flights from Missouri to South Korea

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Missouri to South Korea

Keep the following information in mind while searching for Missouri to South Korea flight deals. Data was last updated September 15, 2025.

Round-trip from

$844
(American Airlines)

One-way from

$396
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,452
From Missouri to South Korea
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One-way flight from Missouri to South Korea
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($73 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Missouri to South Korea

Cheapest flights from Missouri to South Korea
Explore the most affordable flight options available from Missouri to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 10/208:05 pmSTL - ICN
2 stops29h 25mAmerican Airlines
Sun 10/265:55 pmICN - STL
1 stop29h 25mAmerican Airlines
Deal found 9/13$825
This American Airlines deal was found by Cheapflights users on 9/13. 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 9/273:59 pmSTL - ICN
1 stop33h 31mAmerican Airlines
Sun 10/265:55 pmICN - STL
1 stop29h 25mAmerican Airlines
Deal found 9/13$844
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 10/285:53 pmSTL - ICN
2 stops32h 02mAmerican Airlines
Tue 11/47:15 pmICN - STL
2 stops29h 05mAmerican Airlines
Deal found 9/13$849
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:50 amSTL - ICN
1 stop18h 30mDelta
Sat 11/17:30 pmICN - STL
1 stop17h 37mDelta
Deal found 9/15$856
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 11/107:58 pmSTL - ICN
2 stops29h 47mAmerican Airlines
Thu 11/277:15 pmICN - STL
1 stop30h 24mAmerican Airlines
Deal found 9/14$857
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:00 amSTL - ICN
2 stops20h 30mDelta
Sun 11/27:40 pmICN - STL
1 stop19h 44mDelta
Deal found 9/15$861
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:00 amSTL - ICN
2 stops20h 30mDelta
Mon 10/136:40 pmICN - STL
1 stop18h 27mDelta
Deal found 9/15$866
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:09 pmSTL - ICN
2 stops30h 21mDelta
Thu 11/279:35 amICN - STL
2 stops24h 00mDelta
Deal found 9/15$871
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:00 amSTL - ICN
1 stop22h 35mMultiple Airlines
Sun 9/216:20 pmICN - STL
2 stops34h 44mMultiple Airlines
Deal found 9/15$910
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/168:38 pmMCI - ICN
2 stops29h 07mMultiple Airlines
Mon 10/278:35 pmICN - MCI
1 stop31h 27mMultiple Airlines
Deal found 9/14$919
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/318:28 pmMCI - ICN
2 stops29h 42mMultiple Airlines
Mon 11/178:35 pmICN - MCI
1 stop32h 27mMultiple Airlines
Deal found 9/14$938
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/168:38 pmMCI - ICN
2 stops29h 07mMultiple Airlines
Fri 10/248:35 pmICN - MCI
1 stop17h 24mMultiple Airlines
Deal found 9/14$942

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to South Korea 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 September 15, 2025.
Use the filters below to find and compare flights from Missouri to South Korea that are best for you.

Fly from

Missouri

Fly to

South Korea

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 10/28

6:05 pm-3:55 pm

1 stop31h 50m

Incheon Intl

Tue 11/4

7:15 pm-9:20 am

2 stops29h 05m

$849

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 10/24

6:00 am-5:20 pm

1 stop21h 20m

Incheon Intl

Sat 11/1

7:30 pm-11:07 pm

1 stop17h 37m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 10/30

5:24 pm-4:40 am

2 stops21h 16m

Incheon Intl

Thu 11/6

12:45 pm-4:27 pm

1 stop18h 42m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 10/2

6:00 am-6:35 pm

1 stop22h 35m

Incheon Intl

Mon 10/13

8:35 pm-12:03 am

1 stop17h 28m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 9/27

6:40 am-4:25 pm

1 stop19h 45m

Incheon Intl

Sun 10/26

7:25 pm-11:41 pm

1 stop18h 16m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 10/29

5:20 am-3:55 pm

1 stop20h 35m

Incheon Intl

Wed 11/5

7:15 pm-10:58 pm

1 stop18h 43m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 10/25

5:15 pm-4:55 am

1 stop21h 40m

Incheon Intl

Sat 11/1

7:30 pm-11:07 pm

1 stop17h 37m

$856

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 10/24

6:50 am-3:20 pm

1 stop18h 30m

Incheon Intl

Sun 11/2

7:40 pm-12:24 am

1 stop19h 44m

$856

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 10/15

2:55 pm-4:55 am

2 stops48h 00m

Incheon Intl

Mon 10/27

8:35 pm-11:46 pm

1 stop17h 11m

$996

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Wed 10/29

7:00 am-3:55 pm

1 stop18h 55m

Incheon Intl

Wed 11/5

7:15 pm-10:26 pm

1 stop18h 11m

$1,035

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 39 results
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Best time to book a flight from Missouri to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

Currently, February is the cheapest month in which you can book a flight from Missouri to South Korea (average of $990). Flying from Missouri to South Korea in December is currently the most expensive (average of $1,633). 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 KR?

Find hourly flight availability from Missouri to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to South Korea as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Missouri to South Korea. 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 South Korea?

    Airlines like American Airlines, Delta, and Japan Airlines fly from Missouri to South Korea in about 21h 20m. The time it takes to get you to your destination can typically vary by up to 10h 30m. There are 6670 mi between Missouri and South Korea. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Missouri to South Korea one-way?

    The cheapest airlines for a one-way flight from Missouri to South Korea are United Airlines ($448), Air Canada ($572), and Japan Airlines ($996).

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

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

  • How can I find direct flights from Missouri to South Korea?

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

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

    Yes. Cheapflights offers flight deals from Missouri to South Korea 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 South Korea?

    Currently, February is the cheapest month in which you can book a flight from Missouri to South Korea (average of $990). Flying from Missouri to South Korea in December is currently the most expensive (average of $1,633). 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 South Korea

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 South Korea

Discover the top 5 airlines that operate flights from Missouri to South Korea. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,083FlexibilityNo cancel feeOn-time67%
DeltaCheapest$866Average$1,433FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$877Average$1,419FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$902Average$1,673FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,046Average$1,833FlexibilityNo cancel feeOn-time81%

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