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$488+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEL
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
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 July 25, 2024.

Popular in

December

Cheapest in

August

Round-trip from

$1,203
(Air Canada)

One-way from

$488
(mytrip.com)
High demand for flights, 20% potential price rise
Search Deals
Best time to find cheap flights, 12% potential price drop
Search Deals
From Lambert-St Louis to Seoul (SEL)
Search Deals
One-way flight from Lambert-St Louis to Seoul (SEL)
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What is the cheapest day to fly round-trip from St. Louis to Seoul?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 46% when planning your travel around this day of the week.

What is the cheapest month to fly from St. Louis to Seoul?

Our data shows that August tends to be the cheapest month to fly to Seoul from St. Louis. Users have commonly found prices around $1,723 for the month, but tickets can be as low as $1,352. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from STL to SEL?

Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from St. Louis to Seoul by exploring options for tickets at noon.

Cheap St. Louis to Seoul flights in July & August 2024

Find cheap flight options from St. Louis to Seoul specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
These are some of the most attractive deals on flights from St. Louis to Seoul in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
This JustFly deal was found by Cheapflights users on 7/24. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/274:05 pmSTL - ICN
1 stop35h 25mAir Canada
Tue 9/106:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/24$1,208
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Sat 8/3111:30 amSTL - ICN
2 stops38h 35mAir Canada
Mon 9/306:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/25$1,248
This JustFly deal was found by Cheapflights users on 7/24. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/264:05 pmSTL - ICN
2 stops34h 00mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/24$1,253
This Delta deal was found by Cheapflights users on 7/25. 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.
Tue 8/2712:43 pmSTL - ICN
1 stop25h 47mDelta
Tue 9/107:40 pmICN - STL
1 stop16h 20mDelta
Deal found 7/25$1,265
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Sat 8/3111:30 amSTL - ICN
2 stops38h 35mAir Canada
Fri 9/277:05 pmICN - STL
1 stop38h 55mAir Canada
Deal found 7/25$1,293
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Fri 8/304:05 pmSTL - ICN
2 stops34h 20mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/25$1,298
This Delta deal was found by Cheapflights users on 7/25. 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 8/316:06 amSTL - ICN
1 stop19h 14mDelta
Tue 10/17:40 pmICN - STL
1 stop16h 20mDelta
Deal found 7/25$1,315
This Delta deal was found by Cheapflights users on 7/25. 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 8/316:06 amSTL - ICN
1 stop19h 14mDelta
Fri 9/277:40 pmICN - STL
1 stop16h 20mDelta
Deal found 7/25$1,365
This Asiana Airlines deal was found by Cheapflights users on 7/25. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/314:51 pmSTL - ICN
2 stops21h 09mMultiple Airlines
Sun 9/296:15 pmICN - STL
1 stop19h 44mMultiple Airlines
Deal found 7/25$1,425

St. Louis to Seoul 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Seoul in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
These are some of the most attractive deals on flights from St. Louis to Seoul in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Sun 9/111:30 amSTL - ICN
1 stop38h 55mAir Canada
Wed 10/27:05 pmICN - STL
1 stop34h 15mAir Canada
Deal found 7/25$1,203
This JustFly deal was found by Cheapflights users on 7/24. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/274:05 pmSTL - ICN
1 stop35h 25mAir Canada
Tue 9/106:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/24$1,208
This Air Canada deal was found by Cheapflights users on 7/24. 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 11/203:50 pmSTL - ICN
1 stop35h 35mAir Canada
Wed 12/48:10 pmICN - STL
1 stop33h 56mAir Canada
Deal found 7/24$1,210
This Air Canada deal was found by Cheapflights users on 7/25. 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 11/203:50 pmSTL - ICN
1 stop35h 35mAir Canada
Wed 12/46:45 pmICN - STL
2 stops35h 21mAir Canada
Deal found 7/25$1,212
This JustFly deal was found by Cheapflights users on 7/25. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/49:50 amSTL - ICN
2 stops40h 15mAir Canada
Tue 10/16:00 pmICN - STL
2 stops41h 05mAir Canada
Deal found 7/25$1,218
This JustFly deal was found by Cheapflights users on 7/25. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/49:50 amSTL - ICN
1 stop40h 35mAir Canada
Mon 9/307:05 pmICN - STL
1 stop34h 15mAir Canada
Deal found 7/25$1,224
This Air Canada deal was found by Cheapflights users on 7/25. 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.
Sat 8/3111:30 amSTL - ICN
2 stops38h 35mAir Canada
Mon 9/306:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/25$1,248
This Air Canada deal was found by Cheapflights users on 7/25. 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 9/54:05 pmSTL - ICN
2 stops34h 00mAir Canada
Thu 10/36:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 7/25$1,253
This Air Canada deal was found by Cheapflights users on 7/23. 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 9/264:05 pmSTL - ICN
2 stops34h 00mAir Canada
Tue 10/295:45 pmICN - STL
2 stops35h 21mAir Canada
Deal found 7/23$1,257

One-way flights to Seoul from St. Louis

Search for one-way flight options from St. Louis to Seoul. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Seoul. Users needing a return flight from St. Louis to Seoul should utilize the search form above.
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/141:48 pmSTL - ICN
2 stops35h 57mMultiple Airlines
Deal found 7/25$488
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Wed 8/141:48 pmSTL - ICN
3 stops41h 47mMultiple Airlines
Deal found 7/25$714
This Expedia deal was found by Cheapflights users on 7/25. 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.
Wed 8/1411:30 amSTL - ICN
1 stop38h 55mAir Canada
Deal found 7/25$756
This JustFly deal was found by Cheapflights users on 7/25. 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 JustFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/144:05 pmSTL - GMP
2 stops39h 55mAir Canada
Deal found 7/25$776
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/141:48 pmSTL - GMP
3 stops31h 17mMultiple Airlines
Deal found 7/25$875

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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,203 - $1,635

Route

Depart

Return

Price

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 9/1

1 stop38h 55m

Incheon Intl

Wed 10/2

1 stop34h 15m

$1,203

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

1 stop25h 47m

Incheon Intl

Thu 9/12

1 stop16h 20m

$1,265

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

2 stops21h 09m

Incheon Intl

Sat 9/28

1 stop19h 44m

$1,330

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 11/17

2 stops33h 40m

Incheon Intl

Wed 11/27

2 stops51h 09m

$1,359

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/26

1 stop20h 15m

Incheon Intl

Tue 10/29

2 stops23h 00m

$1,361

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 9/4

2 stops39h 55m

Incheon Intl

Wed 10/2

2 stops38h 23m

$1,478

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Tue 10/22

2 stops24h 00m

Seoul Gimpo Intl

Thu 10/31

2 stops22h 21m

$1,509

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 11/3

2 stops40h 36m

Incheon Intl

Tue 11/19

2 stops37h 16m

$1,545

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 12/1

1 stop19h 49m

Incheon Intl

Sun 12/8

1 stop19h 03m

$1,635

Flights are sorted by cheapest first

Deals found on 7/25

What is the cheapest day to fly from St. Louis to Seoul?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Seoul. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Seoul flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Seoul by month

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

SEL

Temperature

35.6 - 77 °F

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 July 25, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as Air Canada, Delta and Turkish Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Japan Airlines
8.3
Very good
1,447 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Delta
8.0
Very good
9,630 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Cathay Pacific
7.8
Good
945 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Qatar Airways
7.6
Good
4,159 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Turkish Airlines
7.4
Good
3,762 reviews
Japan Airlines
8.3
Very good
1,447 reviews

Boarding

8.4

Crew

8.7

Food

7.8

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

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.

  • Can I find flights from St. Louis to Seoul for under $1,300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Seoul for under $1,300. The cheapest flight booked recently is on Air Canada for just $1,203, but on average you can expect to pay $1,273.

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

    Air Canada, at $1,203, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Delta and Turkish Airlines. These flights start at 30% lower than the current average price 3 months from now.

  • What does STL to ICN mean?

    STL stands for Lambert-St Louis Airport, while ICN stands for Incheon Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Seoul Gimpo Intl Airport (GMP).

  • Can I find deals for flights from St. Louis to Seoul that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Seoul flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Seoul with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Seoul flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Seoul that allow pets onboard?

    Many airlines flying from St. Louis to Seoul offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Seoul?

    Yes, you can often find last-minute deals on St. Louis to Seoul flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Seoul flight deals updated?

    The St. Louis to Seoul flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from St. Louis to Seoul?

    Before booking your flight from St. Louis to Seoul check out the most popular airlines for this route: American Airlines, Air Canada or Delta.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Seoul (average of $1,216). Flying from St. Louis to Seoul in June is currently the most expensive (average of $1,727). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Seoul
See prices for flight routes from nearby airports that may be better suited for you.

St. Louis to Incheon Intl flights
Kansas City to Incheon Intl flights
St. Louis to Gimpo Intl flights
St. Louis to Busan flights
Springfield to Incheon Intl flights
Kansas City to Daegu flights
Kansas City to Busan flights
St. Louis to Jeju City flights

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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,209Average$1,257FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,299Average$1,714FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$1,324Average$1,491FlexibilityNo cancel feeOn-time79%
DeltaCheapest$1,390Average$1,645FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,453Average$1,744FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,595Average$1,984FlexibilityNo cancel feeOn-time81%
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Search flights from St. Louis to Seoul by cabin class

Find flights from St. Louis to Seoul, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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