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Incheon Intl

$413+ Cheap flights from Missouri to Incheon Intl (ICN)

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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
1 adult, Economy
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Cheap flight deals from Missouri to Incheon Intl

Keep the following information in mind while searching for Missouri to Incheon Intl flight deals. Data was last updated octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$766
(Alaska Airlines)

One-way from

$413
(American Airlines)

Popular in

August

Cheapest in

October

Average price

$866
Provider with most accurate pricing for Lambert-St Louis-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Seoul (SEL) flights.
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From Missouri to Incheon Intl
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One-way flight from Missouri to Incheon Intl
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Highest demand for flights based on searches. 11% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Missouri to Incheon Intl

Cheapest flights from Missouri to Incheon Intl
Explore the most affordable flight options available from Missouri to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 14, 2025.

This American Airlines deal was found by Cheapflights users on 10/13. 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.
lun. 11/107:58 pmSTL - ICN
2 stops29h 47mAmerican Airlines
jue. 11/277:15 pmICN - STL
1 stop32h 22mAmerican Airlines
Deal found 10/13$832
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/86:30 amSTL - ICN
1 stop18h 50mDelta
sáb. 12/277:30 pmICN - STL
1 stop17h 46mDelta
Deal found 10/14$846
This American Airlines deal was found by Cheapflights users on 10/14. 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.
mar. 11/115:32 amSGF - ICN
1 stop20h 13mAmerican Airlines
mar. 11/187:15 pmICN - SGF
1 stop18h 11mAmerican Airlines
Deal found 10/14$846
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/306:40 amSTL - ICN
1 stop19h 10mDelta
vie. 12/197:40 pmICN - STL
1 stop20h 10mDelta
Deal found 10/14$856
This American Airlines deal was found by Cheapflights users on 10/14. 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.
sáb. 10/256:48 pmSGF - ICN
1 stop31h 07mAmerican Airlines
mié. 10/295:55 pmICN - SGF
1 stop35h 53mAmerican Airlines
Deal found 10/14$857
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/273:15 pmSTL - ICN
2 stops34h 35mDelta
jue. 12/48:05 pmICN - STL
2 stops19h 43mDelta
Deal found 10/13$861
This American Airlines deal was found by Cheapflights users on 10/14. 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.
sáb. 11/295:17 amSTL - ICN
1 stop20h 28mAmerican Airlines
vie. 12/197:15 pmICN - STL
1 stop28h 41mAmerican Airlines
Deal found 10/14$862
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1612:25 pmSTL - ICN
2 stops25h 55mUnited Airlines
jue. 10/2311:30 amICN - STL
2 stops23h 16mUnited Airlines
Deal found 10/14$871
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:00 amSTL - ICN
1 stop18h 30mDelta
jue. 12/256:00 pmICN - STL
1 stop20h 38mDelta
Deal found 10/14$965
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:00 amSTL - ICN
2 stops19h 30mDelta
vie. 12/267:30 pmICN - STL
1 stop17h 46mDelta
Deal found 10/14$970
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/86:30 amSTL - ICN
1 stop18h 50mDelta
dom. 12/287:30 pmICN - STL
1 stop17h 46mDelta
Deal found 10/14$972
This American Airlines deal was found by Cheapflights users on 10/14. 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.
mar. 10/214:18 pmSGF - ICN
1 stop33h 12mAmerican Airlines
mar. 10/285:55 pmICN - SGF
1 stop28h 56mAmerican Airlines
Deal found 10/14$1,012

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Incheon Intl 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 octubre 14, 2025.
Use the filters below to find and compare flights from Missouri to Incheon Intl Airport that are best for you.

Fly from

Missouri

Fly to

Incheon Intl

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

lun. 4/6

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

mié. 4/15

8:35 pm-11:55 pm

1 stop17h 20m

$766

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

sáb. 4/4

2:55 pm-6:35 pm

1 stop37h 40m

Incheon Intl

sáb. 4/18

8:35 pm-11:55 pm

1 stop17h 20m

$773

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

vie. 10/24

6:00 am-5:20 pm

1 stop21h 20m

Incheon Intl

sáb. 11/1

7:30 pm-11:07 pm

1 stop17h 37m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

lun. 12/8

5:30 pm-5:40 am

1 stop21h 10m

Incheon Intl

jue. 12/25

12:45 pm-4:44 pm

1 stop18h 59m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

sáb. 10/25

8:53 am-3:30 pm

1 stop16h 37m

Incheon Intl

sáb. 11/1

7:30 pm-11:07 pm

1 stop17h 37m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

dom. 12/7

6:39 am-4:50 pm

1 stop19h 11m

Incheon Intl

vie. 12/26

9:35 am-8:41 pm

1 stop26h 06m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

vie. 10/24

6:00 am-5:20 pm

1 stop21h 20m

Incheon Intl

dom. 11/2

9:35 am-2:22 pm

1 stop18h 47m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

mar. 12/9

6:42 pm-4:15 pm

2 stops30h 33m

Incheon Intl

jue. 12/25

6:00 pm-10:22 pm

2 stops19h 22m

$851

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

lun. 11/10

7:02 pm-3:30 pm

2 stops29h 28m

Incheon Intl

jue. 11/27

8:05 pm-11:59 am

2 stops30h 54m

$851

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

mar. 12/9

5:12 pm-3:30 pm

2 stops31h 18m

Incheon Intl

lun. 12/29

7:30 pm-10:16 pm

1 stop17h 46m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 55 results
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Best time to book a flight from Missouri to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl Airport

What is the cheapest month to book a flight from Missouri to Incheon Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Missouri to Incheon Intl Airport (average of $715). Flying from Missouri to Incheon Intl Airport in December is currently the most expensive (average of $1,344). 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 ICN?

Find hourly flight availability from Missouri to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Missouri to Incheon Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Missouri to Incheon Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Missouri to Incheon Intl. 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 Incheon Intl Airport?

    Departing from Missouri to Incheon Intl Airport will take you 21h 10m. There are 6670 mi between Missouri and Incheon Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Missouri to Incheon Intl Airport?

    While some choose either Kansas City - Incheon Intl or Springfield-Branson - Incheon Intl, Lambert-St Louis - Incheon Intl is the most popular route from Missouri to Incheon Intl Airport.

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

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

  • How can I find direct flights from Missouri to Incheon Intl?

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

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

    Yes. Cheapflights offers flight deals from Missouri to Incheon Intl 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 Incheon Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Missouri to Incheon Intl Airport (average of $715). Flying from Missouri to Incheon Intl Airport in December is currently the most expensive (average of $1,344). 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

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Alternative routes for Missouri to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Gimpo Intl flights
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O'Hare Intl to Gimpo Intl flights
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Reagan-National to Gimpo Intl flights
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Top 5 airlines flying from Missouri to Incheon Intl

Discover the top 5 airlines that operate flights from Missouri to Incheon Intl. 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 octubre 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,106FlexibilityNo cancel feeOn-time67%
DeltaCheapest$861Average$1,414FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$877Average$1,573FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$902Average$1,671FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,046Average$1,833FlexibilityNo cancel feeOn-time81%

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