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$455+ Cheap flights from St. Louis (STL) 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEL
Dec 8 — Dec 151
Sun 12/8
Sun 12/15
1 adult, Economy
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Cheap flight deals from St. Louis to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Seoul (SEL). 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 December 3, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

March

Round-trip from

$902
(American Airlines)

One-way from

$455
(Kiwi.com)
Provider with most accurate pricing for Lambert-St Louis-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Seoul (SEL) flights.
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High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 35% potential price drop
Search Deals
From Lambert-St Louis to Seoul (SEL)
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One-way flight from Lambert-St Louis to Seoul (SEL)
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Find flight deals from St. Louis to Seoul

Cheapest flights from St. Louis to Seoul
Explore the most affordable flight options available from St. Louis to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.

This Delta deal was found by Cheapflights users on 12/3. 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.
Wed 12/46:00 amSTL - ICN
1 stop18h 30mDelta
Wed 12/115:50 pmICN - STL
1 stop20h 53mDelta
Deal found 12/3$903
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/56:00 amSTL - ICN
1 stop19h 45mAmerican Airlines
Thu 12/126:50 pmICN - STL
2 stops29h 04mAmerican Airlines
Deal found 12/2$1,107
This oojo deal was found by Cheapflights users on 12/3. 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.
Thu 12/510:15 amSTL - ICN
2 stops36h 40mCathay Pacific
Thu 12/121:50 pmICN - STL
2 stops49h 22mCathay Pacific
Deal found 12/3$1,373
This Expedia deal was found by Cheapflights users on 12/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:25 amSTL - ICN
2 stops39h 20mMultiple Airlines
Sun 12/2210:35 amICN - STL
2 stops43h 31mMultiple Airlines
Deal found 12/1$1,491
This oojo deal was found by Cheapflights users on 12/2. 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.
Thu 12/54:08 pmSTL - ICN
2 stops34h 07mQatar Airways
Wed 12/1112:20 amICN - STL
2 stops38h 39mQatar Airways
Deal found 12/2$1,723
This Air Canada deal was found by Cheapflights users on 12/3. 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 12/53:50 pmSTL - ICN
2 stops33h 55mAir Canada
Wed 12/116:20 pmICN - STL
2 stops35h 46mAir Canada
Deal found 12/3$1,737
This Gurufare deal was found by Cheapflights users on 12/1. 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 12/66:25 amSTL - GMP
2 stops24h 55mJapan Airlines
Sun 12/227:40 pmGMP - STL
2 stops30h 32mJapan Airlines
Deal found 12/1$1,941
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/57:00 amSTL - ICN
1 stop18h 15mUnited Airlines
Wed 12/1112:45 pmICN - STL
1 stop20h 11mUnited Airlines
Deal found 12/3$2,019
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Fri 12/63:50 pmSTL - GMP
3 stops30h 15mMultiple Airlines
Sun 12/2212:05 pmGMP - STL
2 stops38h 07mMultiple Airlines
Deal found 12/1$2,524
This Gurufare deal was found by Cheapflights users on 12/1. 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.
Sun 12/156:15 amSTL - GMP
2 stops38h 05mANA
Wed 12/187:50 pmGMP - STL
2 stops35h 57mANA
Deal found 12/1$2,977

Find flights from St. Louis to Seoul within your budget

Customize your flight search to find flights from St. Louis 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 2,700,776 searches. Data last updated December 3, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 1/20

5:03 am-4:45 pm

1 stop20h 42m

Incheon Intl

Mon 1/27

6:50 pm-10:36 pm

1 stop18h 46m

$902

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 4/6

7:11 pm-3:20 pm

2 stops30h 09m

Incheon Intl

Wed 4/23

4:25 pm-11:38 pm

1 stop21h 13m

$907

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 3/16

3:50 pm-5:25 pm

1 stop35h 35m

Incheon Intl

Sat 3/22

4:55 pm-3:06 pm

2 stops36h 11m

$1,159

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 3/18

7:00 am-5:50 pm

1 stop20h 50m

Incheon Intl

Wed 5/28

8:40 pm-12:27 am

1 stop17h 47m

$1,197

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 4/6

3:15 pm-3:00 pm

2 stops33h 45m

Incheon Intl

Wed 4/23

4:50 pm-2:18 pm

3 stops35h 28m

$1,224

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 3/18

11:39 am-12:20 pm

2 stops34h 41m

Incheon Intl

Wed 5/28

9:50 pm-6:19 pm

2 stops34h 29m

$1,356

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 1/20

5:30 pm-6:20 pm

2 stops33h 50m

Incheon Intl

Sun 1/26

12:10 am-3:38 pm

2 stops30h 28m

$1,442

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 3/3

5:27 pm-5:15 pm

2 stops32h 48m

Incheon Intl

Sun 3/30

1:20 am-10:25 pm

2 stops35h 05m

$1,514

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 3/18

6:15 am-10:20 pm

2 stops26h 05m

Seoul Gimpo Intl

Wed 5/28

7:55 am-11:11 pm

2 stops29h 16m

$1,777

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 4/6

6:15 am-10:20 pm

2 stops26h 05m

Seoul Gimpo Intl

Wed 4/23

7:55 pm-2:36 pm

2 stops32h 41m

$1,965

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 17 results
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Compare providers for flights from St. Louis to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Seoul in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

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

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

Currently, October is the cheapest month in which you can book a flight from St. Louis to Seoul (average of $1,086). Flying from St. Louis to Seoul in June is currently the most expensive (average of $1,708). 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 SEL?

Find hourly flight availability from St. Louis 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 December 3, 2024.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 23% on flights from St. Louis to Seoul by exploring options for tickets at noon.

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 December 3, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as United Airlines and Qatar Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

ANA
8.4
Very good
830 reviews
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

Japan Airlines
8.3
Very good
1,449 reviews
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

Delta
8.0
Very good
8,694 reviews
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

Finnair
7.7
Good
1,297 reviews
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

Cathay Pacific
7.6
Good
866 reviews
ANA
8.4
Very good
830 reviews

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Comfort

8.2

Overall

8.4

Reviews

1 / 10

good service ,nice staff ,the sit space is big than normal

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Seoul. 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 Seoul?

    For a flight from St. Louis to Seoul, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Seoul per day. 6 airlines have flights to Seoul from Lambert-St Louis on a regular basis.

  • What are the cheapest airlines flying from St. Louis to Seoul round-trip?

    American Airlines, at $902, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Delta and United Airlines. These flights start at 39% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $506. United Airlines flights start at $521 while deals on Cathay Pacific start at $724 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Seoul?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Seoul (average of $1,086). Flying from St. Louis to Seoul in June is currently the most expensive (average of $1,708). 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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Top 6 airlines flying from St. Louis to Seoul

Discover the top 6 airlines that operate flights from St. Louis 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 2,700,776 searches. Data last updated December 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$870Average$1,236FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$902Average$1,112FlexibilityNo cancel feeOn-time69%
DeltaCheapest$902Average$1,619FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,011Average$1,637FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$1,331Average$1,492FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$1,469Average$1,889FlexibilityNo cancel feeOn-time81%
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