Cheap flights from St. Louis (STL) to Seoul (SEL) from $585

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 7/15. 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 11 — Jun 181

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 June 6, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$1,256

One-way from

$909
High demand for flights, 17% potential price rise
Best time to find cheap flights, 14% potential price drop
From Lambert-St Louis to Seoul (SEL)
One-way flight from Lambert-St Louis to Seoul (SEL)

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 $1,782 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 16% on flights from St. Louis to Seoul by exploring options for tickets at noon.

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

Find cheap flight options from St. Louis to Seoul specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 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.
Sat 6/155:31 pmSTL - ICN
2 stops58h 09mMultiple Airlines
Thu 6/208:30 amICN - STL
2 stops26h 35mMultiple Airlines
Deal found 6/6$1,910
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$1,948
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/5$2,007
Sun 6/164:05 pmSTL - ICN
3 stops32h 05mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/6$2,019
Sat 6/154:05 pmSTL - ICN
3 stops30h 25mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$2,029
Sun 6/164:05 pmSTL - ICN
1 stop35h 25mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$2,057
Sat 6/154:05 pmSTL - ICN
3 stops30h 25mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/6$2,091
Sun 6/164:05 pmSTL - ICN
3 stops32h 05mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/6$2,121
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Thu 6/202:40 pmICN - STL
3 stops37h 36mMultiple Airlines
Deal found 6/5$2,130

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 3,050,429 searches. Data last updated June 6, 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.
Tue 10/2212:00 pmSTL - ICN
2 stops38h 05mAir Canada
Mon 11/46:45 pmICN - STL
2 stops30h 08mAir Canada
Deal found 6/5$1,244
Wed 11/204:10 pmSTL - ICN
1 stop35h 15mAir Canada
Wed 12/48:10 pmICN - STL
1 stop34h 13mAir Canada
Deal found 6/5$1,250
Tue 8/277:02 pmSTL - ICN
2 stops30h 13mAmerican Airlines
Mon 9/95:25 pmICN - STL
2 stops31h 43mAmerican Airlines
Deal found 6/6$1,272
Tue 8/278:04 amSTL - ICN
1 stop17h 11mAmerican Airlines
Tue 9/105:25 pmICN - STL
1 stop29h 27mAmerican Airlines
Deal found 6/6$1,275
Sun 8/254:05 pmSTL - GMP
2 stops39h 55mMultiple Airlines
Thu 9/128:20 amGMP - STL
2 stops45h 00mMultiple Airlines
Deal found 6/5$1,275
Thu 9/1212:00 pmSTL - ICN
2 stops38h 05mAir Canada
Mon 9/236:00 pmICN - STL
2 stops41h 05mAir Canada
Deal found 6/5$1,286
Mon 8/2612:00 pmSTL - ICN
2 stops38h 05mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 6/5$1,292
Tue 10/154:05 pmSTL - ICN
1 stop35h 25mAir Canada
Fri 10/257:05 pmICN - STL
1 stop34h 15mAir Canada
Deal found 6/5$1,298
Mon 8/264:05 pmSTL - GMP
2 stops40h 15mMultiple Airlines
Thu 9/128:20 amGMP - STL
2 stops45h 00mMultiple Airlines
Deal found 6/5$1,300

St. Louis to Seoul flights leaving soon

Find last-minute flight options from St. Louis to Seoul for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Book one of these great deals on flights from St. Louis to Seoul. Tip: verify your flight details before completing your reservation.
Sat 6/155:31 pmSTL - ICN
2 stops58h 09mMultiple Airlines
Thu 6/208:30 amICN - STL
2 stops26h 35mMultiple Airlines
Deal found 6/6$1,910
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$1,948
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/5$2,007
Sun 6/164:05 pmSTL - ICN
3 stops32h 05mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/6$2,019
Sat 6/154:05 pmSTL - ICN
3 stops30h 25mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$2,029
Sun 6/164:05 pmSTL - ICN
1 stop35h 25mMultiple Airlines
Wed 6/1912:50 pmICN - STL
2 stops22h 16mMultiple Airlines
Deal found 6/5$2,057
Sat 6/154:05 pmSTL - ICN
3 stops30h 25mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/6$2,091
Sun 6/164:05 pmSTL - ICN
3 stops32h 05mMultiple Airlines
Thu 6/2010:35 amICN - STL
2 stops24h 30mMultiple Airlines
Deal found 6/6$2,121
Sun 6/164:05 pmSTL - ICN
3 stops31h 50mMultiple Airlines
Thu 6/202:40 pmICN - STL
3 stops37h 36mMultiple Airlines
Deal found 6/5$2,130

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 3,050,429 searches. Data last updated June 6, 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.
Mon 7/154:02 pmSTL - ICN
3 stops53h 28mMultiple Airlines
Deal found 6/6$585
Fri 7/124:02 pmSTL - ICN
3 stops53h 28mMultiple Airlines
Deal found 6/6$591
Sun 7/146:19 pmSTL - ICN
3 stops51h 11mMultiple Airlines
Deal found 6/6$670
Thu 7/116:19 pmSTL - ICN
3 stops54h 01mMultiple Airlines
Deal found 6/6$691
Thu 7/116:19 pmSTL - ICN
2 stops31h 26mMultiple Airlines
Deal found 6/6$705
Mon 7/154:02 pmSTL - ICN
2 stops33h 43mMultiple Airlines
Deal found 6/6$706
Fri 7/124:02 pmSTL - ICN
2 stops33h 43mMultiple Airlines
Deal found 6/6$708
Wed 7/107:00 amSTL - ICN
1 stop18h 15mAmerican Airlines
Deal found 6/6$779
Sat 7/137:50 pmSTL - ICN
1 stop29h 25mAmerican Airlines
Deal found 6/6$793

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,244 - $2,446

Route

Depart

Return

Price

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 10/22

2 stops38h 05m

Incheon Intl

Mon 11/4

2 stops30h 08m

$1,244

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 11/20

1 stop35h 15m

Incheon Intl

Wed 12/4

1 stop34h 13m

$1,250

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 8/27

2 stops30h 13m

Incheon Intl

Mon 9/9

2 stops31h 43m

$1,272

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

$1,275

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

1 stop24h 01m

Incheon Intl

Thu 9/12

1 stop21h 14m

$1,368

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 10/15

2 stops37h 30m

Incheon Intl

Thu 10/24

2 stops36h 38m

$1,565

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Thu 9/5

2 stops24h 00m

Seoul Gimpo Intl

Thu 9/12

2 stops24h 55m

$1,570

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 8/8

2 stops32h 12m

Incheon Intl

Fri 8/16

2 stops37h 38m

$1,724

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 6/16

1 stop20h 50m

Incheon Intl

Fri 6/21

1 stop16h 15m

$2,446

Flights are sorted by cheapest first

Deals found on 6/5

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 June 2, 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 June 6, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as Air Canada, American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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?

8.5
Very good
1,137 reviews
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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?

8.3
Very good
1,462 reviews
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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?

8.0
Very good
10,368 reviews
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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?

7.8
Good
1,036 reviews
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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?

7.7
Good
4,312 reviews
8.5
Very good
1,137 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Boarding

8.6

Overall

8.5

Crew

8.8

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 Air Canada for just $1,244, but on average you can expect to pay $1,309.

  • Are there last-minute flights available from St. Louis to Seoul for under $2,000?

    There are currently 20+ open flights from St. Louis to Seoul within the next 7 days for less than $2,000.

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

    Air Canada, at $1,244, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include American Airlines and Delta. These flights start at 30% 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 American Airlines, which is currently one of the cheapest options available, starting at $779. Air Canada flights start at $857 while deals on Japan Airlines start at $1,151 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 6/6.

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

  • 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 $1,765). 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.

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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,215Average$1,354FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,305Average$1,738FlexibilityNo cancel feeOn-time71%
Japan AirlinesCheapest$1,324Average$1,491FlexibilityNo cancel feeOn-time79%
DeltaCheapest$1,424Average$1,664FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,511Average$1,747FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,687Average$1,996FlexibilityNo cancel feeOn-time81%

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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