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$448+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Missouri to Seoul

Keep the following information in mind while searching for Missouri to Seoul flight deals. Data was last updated July 31, 2025.

Round-trip from

$848
(American Airlines)

One-way from

$448
(Delta)

Popular in

December

Cheapest in

October

Average price

$1,711
From Missouri to Seoul (SEL)
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One-way flight from Missouri to Seoul (SEL)
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($71 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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 9/17:01 amSTL - ICN
1 stop18h 29mAmerican Airlines
Sat 9/205:25 pmICN - STL
1 stop19h 02mAmerican Airlines
Deal found 7/31$851
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 11/105:29 pmSTL - ICN
1 stop21h 11mUnited Airlines
Thu 11/276:00 pmICN - STL
1 stop37h 27mUnited Airlines
Deal found 7/30$855
This Delta deal was found by Cheapflights users on 7/30. 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 11/231:30 pmSTL - ICN
1 stop25h 15mDelta
Tue 12/27:30 pmICN - STL
1 stop18h 32mDelta
Deal found 7/30$866
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:45 amSTL - GMP
2 stops25h 05mJapan Airlines
Mon 8/187:55 amGMP - STL
2 stops29h 14mJapan Airlines
Deal found 7/30$914
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/144:05 pmMCI - ICN
2 stops32h 00mMultiple Airlines
Wed 9/248:05 pmICN - MCI
2 stops33h 05mMultiple Airlines
Deal found 7/31$976
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/181:30 pmSTL - ICN
2 stops36h 35mAir Canada
Wed 9/246:00 pmICN - STL
2 stops35h 18mAir Canada
Deal found 7/30$1,029
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/15:45 amMCI - ICN
1 stop19h 45mAmerican Airlines
Sat 9/135:25 pmICN - MCI
1 stop19h 42mAmerican Airlines
Deal found 7/31$1,038
This Fareboom deal was found by Cheapflights users on 7/29. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amMCI - ICN
1 stop21h 35mHawaiian Airlines
Thu 10/98:35 pmICN - MCI
1 stop17h 24mHawaiian Airlines
Deal found 7/29$1,114
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/181:30 pmSTL - ICN
2 stops36h 35mMultiple Airlines
Wed 9/246:00 pmICN - STL
3 stops30h 50mMultiple Airlines
Deal found 7/30$1,121
This Delta deal was found by Cheapflights users on 7/29. 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 9/710:44 amMCI - ICN
1 stop27h 16mDelta
Sun 9/214:25 pmICN - MCI
1 stop18h 09mDelta
Deal found 7/29$1,231
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/71:45 pmMCI - ICN
2 stops24h 35mUnited Airlines
Sun 9/214:50 pmICN - MCI
2 stops30h 19mUnited Airlines
Deal found 7/30$1,253
This Fareboom deal was found by Cheapflights users on 7/30. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:00 amMCI - ICN
1 stop20h 55mAsiana Airlines
Sun 10/269:00 pmICN - MCI
1 stop16h 46mAsiana Airlines
Deal found 7/30$1,276

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 July 31, 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

Mon 9/1

7:01 am-3:30 pm

1 stop18h 29m

Incheon Intl

Sat 9/20

5:25 pm-10:27 pm

1 stop19h 02m

$851

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 11/10

11:05 am-5:40 am

2 stops27h 35m

Incheon Intl

Thu 11/27

6:00 pm-12:39 pm

2 stops33h 39m

$855

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 11/23

1:30 pm-5:45 am

1 stop25h 15m

Incheon Intl

Mon 12/1

7:30 pm-11:02 pm

1 stop18h 32m

$945

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 11/25

7:00 am-10:20 pm

2 stops24h 20m

Seoul Gimpo Intl

Wed 12/3

7:50 am-11:06 am

2 stops18h 16m

$966

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 9/14

4:05 pm-2:05 pm

2 stops32h 00m

Incheon Intl

Wed 9/24

8:05 pm-3:10 pm

2 stops33h 05m

$976

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 9/18

1:30 pm-4:05 pm

2 stops36h 35m

Incheon Intl

Wed 9/24

6:00 pm-3:18 pm

2 stops35h 18m

$1,029

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Mon 9/1

5:45 am-3:30 pm

1 stop19h 45m

Incheon Intl

Sat 9/13

5:25 pm-11:07 pm

1 stop19h 42m

$1,038

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Thu 10/2

7:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Thu 10/9

8:35 pm-11:59 pm

1 stop17h 24m

$1,114

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 9/18

1:30 pm-4:05 pm

2 stops36h 35m

Incheon Intl

Wed 9/24

6:00 pm-10:50 am

3 stops30h 50m

$1,121

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 9/7

10:44 am-4:00 am

1 stop27h 16m

Incheon Intl

Sun 9/21

4:25 pm-8:34 pm

1 stop18h 09m

$1,231

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 35 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, February is the cheapest month in which you can book a flight from Missouri to Seoul (average of $998). Flying from Missouri to Seoul in December is currently the most expensive (average of $1,635). 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 July 31, 2025.

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

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with EVA Air, ANA, and Korean Air from Missouri to Seoul by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
922 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,536 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very good
468 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $448. Users have also found prices from $453 and $582 on Japan Airlines and Asiana Airlines, respectively.

  • 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, February is the cheapest month in which you can book a flight from Missouri to Seoul (average of $998). Flying from Missouri to Seoul in December is currently the most expensive (average of $1,635). 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,081FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$877Average$1,275FlexibilityNo cancel feeOn-time69%
DeltaCheapest$877Average$1,460FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$976Average$1,722FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,046Average$1,822FlexibilityNo cancel feeOn-time81%

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