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Cheap flights from St. Louis (STL) to Seoul (SEL) from $600

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SEL
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
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 May 30, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$1,256

One-way from

$765
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 14% 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 47% 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 February tends to be the cheapest month to fly to Seoul from St. Louis. Users have commonly found prices around $1,786 for the month, but tickets can be as low as $1,355. 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 17% on flights from St. Louis to Seoul by exploring options for tickets at noon.

Cheap American Airlines flights from St. Louis to Seoul

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Seoul. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a peek at the cheapest American Airlines flights we've detected traveling from St. Louis to Seoul. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 10/38:00 amSTL - ICN
1 stop17h 15mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,268
Sat 11/97:03 pmSTL - ICN
2 stops30h 22mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,271
Sun 9/14:50 pmSTL - ICN
2 stops32h 25mAmerican Airlines
Wed 9/115:25 pmICN - STL
2 stops29h 36mAmerican Airlines
Deal found 5/29$1,272
Sat 11/99:39 amSTL - ICN
1 stop39h 46mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,275
Tue 10/155:54 amSTL - ICN
1 stop19h 21mAmerican Airlines
Fri 10/255:25 pmICN - STL
1 stop18h 59mAmerican Airlines
Deal found 5/29$1,318
Tue 10/156:58 pmSTL - ICN
2 stops30h 17mAmerican Airlines
Fri 10/255:25 pmICN - STL
2 stops30h 39mAmerican Airlines
Deal found 5/29$1,319
Mon 8/265:00 amSTL - ICN
1 stop20h 15mAmerican Airlines
Fri 9/65:25 pmICN - STL
2 stops20h 28mAmerican Airlines
Deal found 5/29$1,321
Mon 8/268:04 amSTL - ICN
1 stop17h 11mAmerican Airlines
Fri 9/65:25 pmICN - STL
1 stop29h 27mAmerican Airlines
Deal found 5/29$1,325
Fri 10/187:44 amSTL - ICN
1 stop17h 31mAmerican Airlines
Sat 11/26:35 pmICN - STL
2 stops28h 34mAmerican Airlines
Deal found 5/29$1,371

Cheap Air Canada flights from St. Louis to Seoul

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Seoul. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Browse through some of the cheapest Air Canada flights traveling from St. Louis to Seoul. Check back soon if you're not seeing flights that suit your needs.
Tue 8/2712:00 pmSTL - ICN
2 stops38h 05mAir Canada
Tue 9/106:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/30$1,284
Tue 8/2712:00 pmSTL - ICN
2 stops38h 05mAir Canada
Fri 9/136:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/30$1,335
Thu 10/34:05 pmSTL - ICN
1 stop35h 25mAir Canada
Wed 10/97:05 pmICN - STL
1 stop34h 15mAir Canada
Deal found 5/29$1,341
Tue 8/2712:00 pmSTL - ICN
2 stops38h 05mAir Canada
Sat 9/146:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/30$1,377
Thu 9/512:00 pmSTL - ICN
2 stops38h 05mAir Canada
Thu 9/126:00 pmICN - STL
2 stops41h 05mAir Canada
Deal found 5/29$1,498

Cheap St. Louis to Seoul flights in May & June 2024

Find cheap flight options from St. Louis to Seoul specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 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.
Thu 6/2712:15 pmSTL - ICN
3 stops30h 30mMultiple Airlines
Thu 7/411:20 pmICN - STL
3 stops30h 55mMultiple Airlines
Deal found 5/28$1,948
Thu 6/276:29 amSTL - GMP
2 stops45h 31mJapan Airlines
Thu 7/47:20 pmGMP - STL
2 stops41h 47mJapan Airlines
Deal found 5/28$2,082
Thu 6/274:05 pmSTL - ICN
2 stops35h 30mMultiple Airlines
Thu 7/41:00 pmICN - STL
3 stops34h 29mMultiple Airlines
Deal found 5/28$2,188
Thu 5/306:11 amSTL - ICN
1 stop19h 09mMultiple Airlines
Sun 6/212:50 pmICN - STL
2 stops40h 24mMultiple Airlines
Deal found 5/29$2,198
Thu 6/278:05 amSTL - ICN
2 stops43h 35mTurkish Airlines
Thu 7/411:20 pmICN - STL
2 stops30h 20mTurkish Airlines
Deal found 5/28$2,232
Mon 6/38:55 amSTL - ICN
2 stops29h 25mUnited Airlines
Wed 6/54:50 pmICN - STL
2 stops19h 25mUnited Airlines
Deal found 5/30$2,244
Thu 5/306:02 pmSTL - GMP
2 stops37h 58mJapan Airlines
Sun 6/27:55 amGMP - STL
2 stops29h 22mJapan Airlines
Deal found 5/29$2,275
Fri 5/311:10 pmSTL - ICN
2 stops25h 10mUnited Airlines
Thu 6/611:30 amICN - STL
2 stops18h 59mUnited Airlines
Deal found 5/30$2,277
Thu 5/306:15 amSTL - ICN
2 stops32h 05mUnited Airlines
Sun 6/211:30 amICN - STL
2 stops19h 42mUnited Airlines
Deal found 5/29$2,294

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 2,784,634 searches. Data last updated May 30, 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.
Sun 8/254:05 pmSTL - GMP
2 stops39h 55mMultiple Airlines
Thu 9/128:20 amGMP - STL
2 stops45h 00mMultiple Airlines
Deal found 5/29$1,265
Thu 10/38:00 amSTL - ICN
1 stop17h 15mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,268
Sat 11/97:03 pmSTL - ICN
2 stops30h 22mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,271
Sun 9/14:50 pmSTL - ICN
2 stops32h 25mAmerican Airlines
Wed 9/115:25 pmICN - STL
2 stops29h 36mAmerican Airlines
Deal found 5/29$1,272
Sat 11/99:39 amSTL - ICN
1 stop39h 46mAmerican Airlines
Wed 11/206:35 pmICN - STL
1 stop19h 01mAmerican Airlines
Deal found 5/29$1,275
Tue 8/2712:00 pmSTL - ICN
2 stops38h 05mAir Canada
Tue 9/106:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/30$1,284
Thu 9/125:30 amSTL - ICN
1 stop19h 45mAmerican Airlines
Mon 9/235:25 pmICN - STL
2 stops32h 33mAmerican Airlines
Deal found 5/30$1,285
Tue 8/2711:43 amSTL - ICN
2 stops34h 52mMultiple Airlines
Mon 9/98:15 pmICN - STL
2 stops40h 45mMultiple Airlines
Deal found 5/30$1,295
Thu 8/294:05 pmSTL - GMP
2 stops39h 55mMultiple Airlines
Thu 9/128:20 amGMP - STL
2 stops45h 00mMultiple Airlines
Deal found 5/29$1,316

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 2,784,634 searches. Data last updated May 30, 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.
Fri 9/63:02 pmSTL - ICN
3 stops57h 18mMultiple Airlines
Deal found 5/30$600
Tue 9/108:00 amSTL - ICN
3 stops44h 05mMultiple Airlines
Deal found 5/29$641
Tue 9/109:37 amSTL - ICN
2 stops36h 58mCathay Pacific
Deal found 5/29$709
Fri 9/69:37 amSTL - ICN
2 stops43h 38mCathay Pacific
Deal found 5/30$765
Tue 7/25:38 pmSTL - ICN
2 stops31h 37mAmerican Airlines
Deal found 5/29$778
Tue 7/27:00 amSTL - ICN
1 stop18h 15mAmerican Airlines
Deal found 5/30$779
Tue 7/25:27 pmSTL - ICN
1 stop31h 48mAmerican Airlines
Deal found 5/29$793
Fri 7/126:09 pmSTL - ICN
2 stops31h 06mAmerican Airlines
Deal found 5/29$829
Mon 11/114:10 pmSTL - GMP
2 stops39h 20mMultiple Airlines
Deal found 5/30$845

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,265 - $2,283

Route

Depart

Return

Price

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Sun 8/25

2 stops39h 55m

Seoul Gimpo Intl

Thu 9/12

2 stops45h 00m

$1,265

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 10/3

1 stop17h 15m

Incheon Intl

Wed 11/20

1 stop19h 01m

$1,268

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/27

2 stops38h 05m

Incheon Intl

Tue 9/10

2 stops35h 20m

$1,284

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/27

1 stop19h 14m

Incheon Intl

Tue 9/10

1 stop21h 05m

$1,368

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Tue 8/27

2 stops25h 00m

Seoul Gimpo Intl

Tue 9/10

2 stops24h 55m

$1,488

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/6

2 stops32h 12m

Incheon Intl

Tue 8/20

1 stop19h 33m

$1,500

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 10/3

2 stops39h 59m

Incheon Intl

Tue 11/19

2 stops37h 21m

$1,558

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 7/4

2 stops25h 15m

Incheon Intl

Mon 7/15

2 stops67h 10m

$2,120

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 7/4

1 stop20h 50m

Incheon Intl

Mon 7/15

1 stop16h 27m

$2,283

Flights are sorted by cheapest first

Deals found on 5/29

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 May 26, 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

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 30, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as American Airlines, Air Canada and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

Korean Air
8.5
Very good
1,150 reviews
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

ANA
8.5
Very good
915 reviews
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

Japan Airlines
8.3
Very good
1,467 reviews
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

Delta
8.0
Very good
10,457 reviews
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

Cathay Pacific
7.8
Good
1,055 reviews
Korean Air
8.5
Very good
1,150 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.6

Crew

8.8

Overall

8.5

Reviews

1 / 10

This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?

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 Multiple Airlines for just $1,265, but on average you can expect to pay $1,317.

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

    American Airlines, at $1,268, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Air Canada and Delta. These flights start at 29% 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 Cathay Pacific, which is currently one of the cheapest options available, starting at $709. American Airlines flights start at $778 while deals on Korean Air start at $935 one-way.

  • 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 5/30.

  • 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 $1,218). Flying from St. Louis to Seoul in June is currently the most expensive (average of $1,772). 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 St. Louis to Seoul
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Incheon Intl flights
St. Louis to Incheon Intl flights
St. Louis to Gimpo Intl flights
Springfield to Incheon Intl flights
Kansas City to Busan flights
Kansas City to Daegu flights
St. Louis to Jeju City flights
St. Louis to Busan 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,215Average$1,354FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Japan AirlinesCheapest$1,300Average$1,616FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
American AirlinesCheapest$1,305Average$1,737FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$1,424Average$1,658FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,511Average$1,747FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest$1,657Average$1,960FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
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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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Seoul?

Deals for St. Louis to Seoul flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Seoul?

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Seoul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St. Louis to Seoul with no change fees?

Yes, we can. To see specific flights from St. Louis to Seoul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to Seoul become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to Seoul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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