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$563+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEL
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,160
(United Airlines)

One-way from

$563
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$1,783
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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High demand for flights, 7% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:05 amSTL - ICN
1 stop31h 35mUnited Airlines
Thu 11/2712:45 pmICN - STL
1 stop19h 18mUnited Airlines
Deal found 4/29$993
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:07 pmSTL - ICN
2 stops30h 38mAmerican Airlines
Thu 11/276:50 pmICN - STL
2 stops28h 25mAmerican Airlines
Deal found 4/30$1,051
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 9/276:30 amSTL - ICN
1 stop20h 50mDelta
Sun 10/268:05 pmICN - STL
2 stops18h 32mDelta
Deal found 4/30$1,060
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:17 pmSTL - ICN
1 stop37h 18mHawaiian Airlines
Fri 9/198:35 pmICN - STL
1 stop17h 24mHawaiian Airlines
Deal found 4/28$1,083
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:55 pmSTL - ICN
1 stop37h 40mAlaska Airlines
Fri 10/178:35 pmICN - STL
1 stop17h 21mAlaska Airlines
Deal found 4/29$1,161
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Tue 9/164:05 pmSTL - ICN
2 stops34h 00mAir Canada
Fri 9/196:00 pmICN - STL
1 stop39h 57mAir Canada
Deal found 4/28$1,178
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/279:07 pmMCI - ICN
1 stop28h 38mMultiple Airlines
Tue 6/312:45 pmICN - MCI
1 stop21h 27mMultiple Airlines
Deal found 4/29$1,200
This Jetabroad deal was found by Cheapflights users on 4/30. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:30 amSTL - ICN
2 stops22h 15mWestJet
Sat 6/218:45 pmICN - STL
2 stops26h 58mWestJet
Deal found 4/30$1,221
This EVA Air deal was found by Cheapflights users on 4/28. 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.
Mon 9/16:30 pmSTL - ICN
2 stops26h 30mMultiple Airlines
Tue 9/307:45 pmICN - STL
2 stops32h 54mMultiple Airlines
Deal found 4/28$1,259
This Fareboom deal was found by Cheapflights users on 4/30. 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.
Fri 11/72:55 pmMCI - ICN
2 stops28h 35mEVA Air
Tue 11/187:45 pmICN - MCI
2 stops32h 57mEVA Air
Deal found 4/30$1,273
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:00 amMCI - GMP
2 stops25h 20mJapan Airlines
Wed 11/127:50 amGMP - MCI
2 stops31h 07mJapan Airlines
Deal found 4/29$1,287
This Fareboom deal was found by Cheapflights users on 4/29. 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.
Tue 10/142:55 pmSTL - ICN
2 stops30h 05mEVA Air
Fri 10/177:45 pmICN - STL
2 stops32h 07mEVA Air
Deal found 4/29$1,294

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 May 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

Mon 7/7

6:00 am-3:00 pm

1 stop19h 00m

Incheon Intl

Wed 7/16

4:50 pm-4:54 am

1 stop26h 04m

$1,160

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Tue 5/27

9:07 pm-3:45 pm

1 stop28h 38m

Incheon Intl

Tue 6/3

12:45 pm-8:12 pm

1 stop21h 27m

$1,200

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 6/11

6:30 am-6:45 pm

2 stops22h 15m

Incheon Intl

Sat 6/21

8:45 pm-9:43 am

2 stops26h 58m

$1,221

Kansas CitySeoul

MCI - GMP

MCIGMP

Kansas City

Sun 10/26

7:00 am-10:20 pm

2 stops25h 20m

Seoul Gimpo Intl

Wed 11/12

7:50 am-11:57 pm

2 stops31h 07m

$1,287

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 10/26

3:50 pm-4:40 am

1 stop22h 50m

Incheon Intl

Wed 11/12

12:45 pm-9:35 pm

3 stops23h 50m

$1,331

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 9/7

6:00 am-5:20 pm

2 stops21h 20m

Incheon Intl

Sun 9/21

10:15 am-5:33 pm

2 stops21h 18m

$1,335

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 7/9

11:23 am-5:20 pm

1 stop15h 57m

Incheon Intl

Mon 7/14

7:40 pm-12:38 am

1 stop18h 58m

$1,355

Kansas CityIncheon

MCI - ICN

MCIICN

Kansas City

Sun 6/1

5:45 am-6:45 pm

2 stops47h 00m

Incheon Intl

Tue 6/17

8:45 pm-4:58 pm

2 stops34h 13m

$1,390

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 7/5

1:30 pm-4:05 pm

2 stops36h 35m

Incheon Intl

Wed 7/9

6:00 pm-8:00 pm

1 stop40h 00m

$1,497

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 5/13

6:30 am-11:00 am

2 stops38h 30m

Incheon Intl

Mon 5/19

6:20 pm-2:07 pm

1 stop33h 47m

$1,506

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 37 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 $1,001). 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 May 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 May 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
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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
1,068 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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
1,464 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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
852 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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.
Alaska Airlines
8.0
Very good
9,972 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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
7,934 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

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 United Airlines. According to our data, you can fly for as low as $563. Users have also found prices from $726 and $747 on WestJet and Air Canada, 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 $1,001). 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 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$799Average$1,076FlexibilityNo cancel feeOn-time67%
DeltaCheapest$877Average$1,586FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$881Average$1,473FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$976Average$1,498FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,046Average$1,925FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$1,479Average$1,488FlexibilityNo cancel feeOn-time79%

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