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$489+ Cheap flights from St. Louis (STL) to South Korea

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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ICN
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from St. Louis to South Korea

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to South Korea (KR0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 17, 2025.

Round-trip from

$799
(Air Canada)

One-way from

$489
(Kiwi.com)
From Lambert-St Louis to South Korea
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One-way flight from Lambert-St Louis to South Korea
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Find flight deals from St. Louis to South Korea

Cheapest flights from St. Louis to South Korea
Explore the most affordable flight options available from St. Louis to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This Air Canada deal was found by Cheapflights users on 1/15. 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.
Wed 1/293:50 pmSTL - ICN
2 stops32h 25mAir Canada
Sun 2/28:10 pmICN - STL
1 stop33h 56mAir Canada
Deal found 1/15$799
This Delta deal was found by Cheapflights users on 1/14. 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.
Sun 1/196:00 amSTL - ICN
1 stop18h 30mDelta
Sun 1/267:30 pmICN - STL
1 stop18h 44mDelta
Deal found 1/14$877
This CheapOair deal was found by Cheapflights users on 1/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:30 pmSTL - ICN
1 stop36h 50mMultiple Airlines
Wed 10/110:35 amICN - STL
2 stops23h 22mMultiple Airlines
Deal found 1/15$889
This Kiwi.com deal was found by Cheapflights users on 1/15. 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.
Mon 1/275:00 pmSTL - ICN
1 stop33h 45mKorean Air
Mon 2/39:35 amICN - STL
1 stop22h 02mKorean Air
Deal found 1/15$1,125
This oojo deal was found by Cheapflights users on 1/15. 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.
Tue 4/13:53 pmSTL - ICN
2 stops35h 42mQatar Airways
Mon 4/71:20 amICN - STL
2 stops53h 17mQatar Airways
Deal found 1/15$1,516
This American Airlines deal was found by Cheapflights users on 1/15. 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 9/15:36 amSTL - ICN
1 stop19h 54mAmerican Airlines
Wed 10/15:25 pmICN - STL
1 stop19h 02mAmerican Airlines
Deal found 1/15$1,535
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Thu 4/39:39 amSTL - ICN
2 stops28h 41mUnited Airlines
Tue 4/1511:30 amICN - STL
2 stops24h 20mUnited Airlines
Deal found 1/15$1,540
This Gurufare deal was found by Cheapflights users on 1/15. 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.
Fri 8/86:10 pmSTL - ICN
2 stops51h 10mFinnair
Sat 8/239:50 pmICN - STL
2 stops34h 31mFinnair
Deal found 1/15$1,556
This Ovago deal was found by Cheapflights users on 1/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:40 pmSTL - ICN
2 stops35h 05mWestJet
Thu 6/128:45 pmICN - STL
2 stops35h 18mWestJet
Deal found 1/16$1,604
This Ovago deal was found by Cheapflights users on 1/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:15 amSTL - GMP
2 stops25h 45mJapan Airlines
Fri 5/97:55 amGMP - STL
2 stops22h 20mJapan Airlines
Deal found 1/14$1,623
This Turkish Airlines deal was found by Cheapflights users on 1/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/75:33 pmSTL - ICN
2 stops57h 47mTurkish Airlines
Sat 3/1512:10 amICN - STL
2 stops52h 13mTurkish Airlines
Deal found 1/16$1,663
This Ovago deal was found by Cheapflights users on 1/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:00 pmSTL - ICN
1 stop20h 30mAsiana Airlines
Tue 9/308:55 pmICN - STL
1 stop17h 32mAsiana Airlines
Deal found 1/15$1,708

Find flights from St. Louis to South Korea within your budget

Customize your flight search to find flights from St. Louis to South Korea 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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 3/6

3:50 pm-6:25 pm

1 stop35h 35m

Incheon Intl

Thu 3/13

7:10 pm-3:06 pm

1 stop33h 56m

$799

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 1/27

7:00 am-5:55 pm

1 stop19h 55m

Incheon Intl

Fri 2/7

6:15 pm-11:59 pm

1 stop20h 44m

$1,197

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 6/10

5:40 pm-6:45 pm

2 stops35h 05m

Incheon Intl

Thu 6/12

8:45 pm-6:03 pm

2 stops35h 18m

$1,604

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 3/7

5:33 pm-6:20 pm

2 stops57h 47m

Incheon Intl

Sat 3/15

12:10 am-2:23 pm

2 stops52h 13m

$1,663

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 4/8

4:45 pm-4:20 am

2 stops21h 35m

Incheon Intl

Mon 4/14

4:50 pm-2:42 pm

3 stops35h 52m

$1,670

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Thu 4/24

6:30 am-5:35 pm

2 stops45h 05m

Incheon Intl

Fri 5/30

1:20 am-11:56 pm

2 stops36h 36m

$1,738

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 4/7

6:15 am-6:00 pm

2 stops21h 45m

Seoul Gimpo Intl

Tue 4/15

7:55 am-11:16 pm

2 stops29h 21m

$1,742

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 5/12

7:28 am-3:30 pm

1 stop18h 02m

Incheon Intl

Wed 7/23

5:25 pm-8:46 am

1 stop29h 21m

$1,784

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 5/21

1:30 pm-1:05 pm

3 stops33h 35m

Seoul Gimpo Intl

Thu 6/12

7:55 am-4:45 pm

3 stops22h 50m

$1,820

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Fri 4/11

11:19 am-5:20 pm

1 stop16h 01m

Incheon Intl

Sun 4/13

6:40 pm-11:04 pm

1 stop18h 24m

$1,865

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 18 results
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Best time to book a flight from St. Louis to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from St. Louis 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.

Travel insights for flights from St. Louis to South Korea

Get recent, data-driven insights about flights from St. Louis to South Korea including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to South Korea?

Currently, October is the cheapest month in which you can book a flight from St. Louis to South Korea (average of $1,086). Flying from St. Louis to South Korea in June is currently the most expensive (average of $1,723). 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 STL to KR?

Find hourly flight availability from St. Louis to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

When flying from St. Louis to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in South Korea by month

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

In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

Temperature in South Korea by month

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

If weather is an important factor for your trip to South Korea, 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 28.4 F).

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated January 17, 2025.
Read through reviews of airlines operating flights from St. Louis to South Korea, such as Air Canada, Korean Air and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
847 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,448 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,511 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Finnair
7.6
Good
1,285 reviews
Korean Air
8.5
Very good
1,034 reviews

Overall

8.5

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to South Korea?

    If you book a flight to South Korea from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • What are the cheapest airlines to fly from St. Louis to South Korea one-way?

    $716 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and Japan Airlines, with prices starting from $826 and $901, respectively.

  • What are the most popular routes from St. Louis to South Korea?

    When deciding which route to take from St. Louis to South Korea consider Lambert-St Louis - Incheon Intl, Lambert-St Louis - Seoul Gimpo Intl or Lambert-St Louis - Busan Gimhae as they are the most popular.

  • Can I find deals for flights from St. Louis to South Korea that include hotel bookings?

    Yes. In addition to deals on St. Louis to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to South Korea.

  • Can I find deals for business class flights from St. Louis to South Korea?

    Yes. Cheapflights offers flight deals from St. Louis to South Korea 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 St. Louis to South Korea?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to South Korea (average of $1,086). Flying from St. Louis to South Korea in June is currently the most expensive (average of $1,723). 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 St. Louis to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from St. Louis to South Korea

Discover the top 6 airlines that operate flights from St. Louis to South Korea. 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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$870Average$1,236FlexibilityNo cancel feeOn-time67%
DeltaCheapest$902Average$1,615FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$902Average$1,112FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,001Average$1,482FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,080Average$1,875FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$1,269Average$1,488FlexibilityNo cancel feeOn-time79%
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