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$522+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEL
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,196
(Priceline)

One-way from

$522
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,253
Provider with most accurate pricing for Kansas City-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Seoul (SEL) flights.
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From Missouri to Seoul (SEL)
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One-way flight from Missouri to Seoul (SEL)
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Highest demand for flights based on searches. 1% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($69 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This Priceline deal was found by Cheapflights users on 3/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:30 pmSTL - ICN
2 stops36h 35mAir Canada
Thu 10/305:50 pmICN - STL
2 stops35h 36mAir Canada
Deal found 3/30$1,196
This EVA Air deal was found by Cheapflights users on 3/31. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:36 pmSTL - ICN
2 stops25h 24mMultiple Airlines
Thu 10/3011:40 amICN - STL
2 stops40h 12mMultiple Airlines
Deal found 3/31$1,298
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:42 pmMCI - ICN
1 stop29h 28mDelta
Tue 9/164:25 pmICN - MCI
1 stop18h 39mDelta
Deal found 3/31$1,330
This Gurufare deal was found by Cheapflights users on 3/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2111:32 amSTL - ICN
2 stops41h 13mWestJet
Tue 5/278:45 pmICN - STL
2 stops26h 15mWestJet
Deal found 3/30$1,340
This United Airlines deal was found by Cheapflights users on 3/30. 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 9/76:29 pmMCI - ICN
2 stops30h 31mUnited Airlines
Sun 9/2111:30 amICN - MCI
2 stops25h 58mUnited Airlines
Deal found 3/30$1,385
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:01 pmSTL - ICN
1 stop18h 59mDelta
Sat 5/316:40 pmICN - STL
1 stop18h 46mDelta
Deal found 3/31$1,469
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/53:35 pmMCI - ICN
2 stops37h 10mWestJet
Sat 6/218:45 pmICN - MCI
2 stops28h 15mWestJet
Deal found 3/31$1,488
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/235:25 amMCI - ICN
1 stop20h 05mAmerican Airlines
Fri 8/155:25 pmICN - MCI
1 stop32h 11mAmerican Airlines
Deal found 3/29$1,503
This Gurufare deal was found by Cheapflights users on 3/31. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:00 amSTL - GMP
2 stops24h 50mJapan Airlines
Thu 10/307:50 amGMP - STL
2 stops19h 09mJapan Airlines
Deal found 3/31$1,601
This Mytrip deal was found by Cheapflights users on 3/30. 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 4/36:45 pmMCI - ICN
1 stop31h 00mMultiple Airlines
Sat 4/59:45 pmICN - MCI
3 stops34h 05mMultiple Airlines
Deal found 3/30$1,665
This oojo deal was found by Cheapflights users on 3/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:59 pmSTL - ICN
2 stops31h 06mQatar Airways
Fri 9/121:20 amICN - STL
2 stops50h 43mQatar Airways
Deal found 3/31$1,668
This oojo deal was found by Cheapflights users on 3/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/78:07 pmMCI - ICN
2 stops30h 58mQatar Airways
Mon 9/151:20 amICN - MCI
2 stops32h 56mQatar Airways
Deal found 3/31$1,704

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 April 1, 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

Thu 9/25

1:30 pm-4:05 pm

2 stops36h 35m

Incheon Intl

Thu 10/30

5:50 pm-3:26 pm

2 stops35h 36m

$1,196

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 9/25

7:36 pm-11:00 am

2 stops25h 24m

Incheon Intl

Thu 10/30

11:40 am-1:52 pm

2 stops40h 12m

$1,298

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 9/7

6:42 pm-2:10 pm

1 stop29h 28m

Incheon Intl

Tue 9/16

4:25 pm-9:04 pm

1 stop18h 39m

$1,330

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 5/21

11:32 am-6:45 pm

2 stops41h 13m

Incheon Intl

Tue 5/27

8:45 pm-9:00 am

2 stops26h 15m

$1,340

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 9/7

6:29 pm-3:00 pm

2 stops30h 31m

Incheon Intl

Sun 9/21

11:30 am-11:28 pm

2 stops25h 58m

$1,385

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 4/24

7:01 pm-4:00 am

1 stop18h 59m

Incheon Intl

Sat 5/31

6:40 pm-11:26 pm

1 stop18h 46m

$1,469

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Thu 6/5

3:35 pm-6:45 pm

2 stops37h 10m

Incheon Intl

Sat 6/21

8:45 pm-11:00 am

2 stops28h 15m

$1,488

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Wed 7/23

5:25 am-3:30 pm

1 stop20h 05m

Incheon Intl

Fri 8/15

5:25 pm-11:36 am

1 stop32h 11m

$1,503

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 9/25

7:00 am-9:50 pm

2 stops24h 50m

Seoul Gimpo Intl

Thu 10/30

7:50 am-12:59 pm

2 stops19h 09m

$1,601

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 9/6

7:59 pm-5:05 pm

2 stops31h 06m

Incheon Intl

Fri 9/12

1:20 am-2:03 pm

2 stops50h 43m

$1,668

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 39 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 $1,002). Flying from Missouri to Seoul in June is currently the most expensive (average of $1,661). 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 April 1, 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.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 1, 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and ANA from Missouri to Seoul by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,051 reviews
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
831 reviews
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,899 reviews
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Finnair
7.6
Good
1,267 reviews
Korean Air
8.4
Very good
1,051 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 Air Canada. According to our data, you can fly for as low as $582. Users have also found prices from $735 and $760 on Korean Air and WestJet, respectively.

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

    Most travelers choose Lambert-St Louis - Incheon Intl, Lambert-St Louis - Seoul Gimpo Intl or Kansas City - Incheon 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 $1,002). Flying from Missouri to Seoul in June is currently the most expensive (average of $1,661). 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 6 airlines flying from Missouri to Seoul

Discover the top 6 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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,052FlexibilityNo cancel feeOn-time67%
DeltaCheapest$877Average$1,546FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$881Average$1,494FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$996Average$1,506FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,058Average$1,832FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$1,479Average$1,488FlexibilityNo cancel feeOn-time79%
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