HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Incheon Intl

$383+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Jan 10 — Jan 171
Sat 1/10
Sat 1/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Incheon Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 11, 2025.

This United Airlines deal was found by Cheapflights users on 12/8. 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.
Tue 12/233:53 pmMCI - ICN
1 stop33h 22mUnited Airlines
Fri 1/1612:45 pmICN - MCI
2 stops22h 48mUnited Airlines
Deal found 12/8$1,060
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/136:00 amMCI - ICN
2 stops32h 40mUnited Airlines
Mon 12/156:00 pmICN - MCI
2 stops35h 59mUnited Airlines
Deal found 12/9$1,150
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Wed 12/246:15 amMCI - ICN
2 stops32h 25mUnited Airlines
Thu 1/156:00 pmICN - MCI
1 stop16h 13mUnited Airlines
Deal found 12/8$1,280
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Tue 12/233:38 pmMCI - ICN
1 stop35h 57mHawaiian Airlines
Fri 1/168:35 pmICN - MCI
1 stop17h 49mHawaiian Airlines
Deal found 12/8$1,352
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Tue 12/161:40 pmMCI - ICN
2 stops25h 00mUnited Airlines
Wed 12/3112:45 pmICN - MCI
2 stops22h 37mUnited Airlines
Deal found 12/8$1,380
This Delta deal was found by Cheapflights users on 12/9. 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.
Sat 12/137:50 amMCI - ICN
1 stop17h 40mDelta
Mon 12/158:05 pmICN - MCI
1 stop18h 17mDelta
Deal found 12/9$1,396
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/127:30 amMCI - ICN
1 stop17h 45mUnited Airlines
Sun 12/146:00 pmICN - MCI
1 stop18h 32mUnited Airlines
Deal found 12/8$1,480
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/266:35 pmSTL - ICN
2 stops30h 40mUnited Airlines
Fri 1/96:00 pmICN - STL
2 stops34h 16mUnited Airlines
Deal found 12/9$1,572
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/266:35 pmSTL - ICN
2 stops30h 40mUnited Airlines
Sat 1/106:00 pmICN - STL
2 stops37h 55mUnited Airlines
Deal found 12/9$1,588
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2610:10 pmSTL - ICN
2 stops40h 10mMultiple Airlines
Fri 1/94:45 pmICN - STL
1 stop19h 36mMultiple Airlines
Deal found 12/9$1,820
This Delta deal was found by Cheapflights users on 12/9. 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.
Sun 12/148:05 pmSTL - ICN
2 stops29h 25mDelta
Wed 12/177:30 pmICN - STL
1 stop18h 59mDelta
Deal found 12/9$2,366
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/144:37 pmSTL - ICN
2 stops38h 48mUnited Airlines
Wed 12/176:00 pmICN - STL
2 stops18h 58mUnited Airlines
Deal found 12/9$2,471

Find 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 December 11, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$758
(Alaska Airlines)

One-way from

$383
(Delta)

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 Incheon Intl
Search Deals
One-way flight from Missouri to Incheon Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($139 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 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 December 11, 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

Sat 1/24

6:19 pm-6:35 pm

1 stop33h 16m

Incheon Intl

Sat 1/31

8:35 pm-1:54 pm

1 stop32h 19m

$758

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

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 2/25

10:13 am-5:45 am

1 stop28h 32m

Incheon Intl

Thu 5/21

10:15 am-8:31 pm

1 stop24h 16m

$846

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 1/11

6:00 am-3:50 pm

1 stop18h 50m

Incheon Intl

Sat 1/17

8:05 pm-11:25 pm

2 stops18h 20m

$850

SpringfieldIncheon

SGF - ICN

SGFICN

Springfield-Branson

Sun 2/15

7:15 am-4:45 pm

1 stop18h 30m

Incheon Intl

Sun 3/8

5:55 pm-11:38 am

1 stop31h 43m

$911

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sat 2/28

7:18 pm-5:40 am

1 stop19h 22m

Incheon Intl

Tue 3/17

11:45 am-4:23 pm

1 stop18h 38m

$916

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 2/25

7:18 pm-5:40 am

1 stop19h 22m

Incheon Intl

Wed 3/11

11:45 am-4:23 pm

1 stop18h 38m

$916

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 2/11

5:09 pm-5:45 am

1 stop21h 36m

Incheon Intl

Thu 2/19

9:35 am-5:02 pm

1 stop22h 27m

$916

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 2/25

7:18 pm-5:40 am

1 stop19h 22m

Incheon Intl

Tue 3/17

11:45 am-4:23 pm

1 stop18h 38m

$916

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 2/25

7:18 pm-5:40 am

1 stop19h 22m

Incheon Intl

Fri 3/13

11:45 am-4:23 pm

1 stop18h 38m

$916

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 35 results
1
2
3
4

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 $691). Flying from Missouri to Incheon Intl Airport in July is currently the most expensive (average of $1,285). 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 December 11, 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.

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 15m. 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 Lambert-St Louis - Incheon Intl or Springfield-Branson - Incheon Intl, Kansas City - 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 $691). Flying from Missouri to Incheon Intl Airport in July is currently the most expensive (average of $1,285). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Incheon Intl flights
John F Kennedy Intl to Incheon Intl flights
San Francisco to Incheon Intl flights
Dallas/Fort Worth to Incheon Intl flights
Seattle to Incheon Intl flights
Dulles Intl to Incheon Intl flights
Los Angeles to Gimpo Intl flights
John F Kennedy Intl to Gimpo Intl flights
Newark to Incheon Intl flights
LaGuardia to Incheon Intl flights
O'Hare Intl to Incheon Intl flights
San Francisco to Gimpo Intl flights
Atlanta to Incheon Intl flights
Seattle to Gimpo Intl flights
Ontario to Incheon Intl flights
Honolulu to Incheon Intl flights
Boston to Incheon Intl flights
Hobby to Incheon Intl flights
Reagan-National to Incheon Intl flights
Baltimore to Incheon Intl flights
Dallas/Fort Worth to Gimpo Intl flights
Dulles Intl to Gimpo Intl flights
Newark to Gimpo Intl flights
Love Field to Incheon Intl flights
Minneapolis to Incheon Intl flights
O'Hare Intl to Gimpo Intl flights
Philadelphia to Incheon Intl flights
Las Vegas to Incheon Intl flights
Orlando to Incheon Intl flights
Detroit to Incheon Intl flights
Denver to Incheon Intl flights
George Bush Intcntl to Incheon Intl flights
LaGuardia to Gimpo Intl flights
Atlanta to Gimpo Intl flights
Austin to Incheon Intl flights
Salt Lake City to Incheon Intl flights
Honolulu to Gimpo Intl flights
Baltimore to Gimpo Intl flights
Midway to Incheon Intl flights
San Diego to Incheon Intl flights
Boston to Gimpo Intl flights
George Bush Intcntl to Gimpo Intl flights
San Jose to Incheon Intl flights
Reagan-National to Gimpo Intl flights
Nashville to Incheon Intl flights
Austin to Gimpo Intl flights
Denver to Gimpo Intl flights
Miami to Incheon Intl flights
Philadelphia to Gimpo Intl flights

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 December 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,102FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$846Average$1,652FlexibilityNo cancel feeOn-time71%
DeltaCheapest$846Average$1,267FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$870Average$1,591FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$999Average$1,910FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2025 Cheapflights