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Cheap flights from St. Louis (STL) to Seoul (SEL) from $711

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 9/9. 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
May 2 — May 91
From?
To?
Thu 5/2
Thu 5/9
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 April 27, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$1,254

One-way from

$777
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 40% potential price drop
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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 Saturday is a good option for securing a great price. You can expect to save up to 23% 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 $1,689 for the month, but tickets can be as low as $967. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from St. Louis to Seoul (STL - SEL)?

Unlike in the morning, when flights are generally more expensive, you can save up to 9% on flights from St. Louis to Seoul by exploring options for tickets at noon.

Cheap Delta flights from St. Louis to Seoul

Explore cheap flight options specifically provided by Delta 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 2,991,349 searches. Data last updated April 27, 2024.
Take a peek at the cheapest Delta 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 9/511:51 amSTL - ICN
1 stop26h 39mDelta
Thu 9/124:25 pmICN - STL
1 stop18h 14mDelta
Deal found 4/26$1,428
Thu 9/56:00 amSTL - ICN
2 stops21h 20mDelta
Thu 9/127:20 pmICN - STL
2 stops19h 10mDelta
Deal found 4/26$1,432
Fri 8/306:00 amSTL - ICN
1 stop18h 25mDelta
Fri 9/66:40 pmICN - STL
1 stop18h 59mDelta
Deal found 4/26$1,528
Tue 6/256:06 amSTL - ICN
1 stop19h 14mDelta
Mon 9/97:40 pmICN - STL
1 stop15h 51mDelta
Deal found 4/26$1,759
Wed 5/156:11 amSTL - ICN
1 stop19h 09mDelta
Tue 6/46:40 pmICN - STL
1 stop19h 00mDelta
Deal found 4/26$1,774
Wed 5/156:11 amSTL - ICN
1 stop19h 09mDelta
Sun 6/210:35 amICN - STL
2 stops27h 05mDelta
Deal found 4/26$1,778
Thu 8/86:30 amSTL - ICN
2 stops20h 00mDelta
Fri 8/167:40 pmICN - STL
1 stop15h 49mDelta
Deal found 4/26$1,824
Tue 7/165:25 pmSTL - ICN
1 stop21h 05mDelta
Tue 8/67:40 pmICN - STL
1 stop15h 49mDelta
Deal found 4/27$1,850
Tue 7/166:00 amSTL - ICN
2 stops21h 20mDelta
Tue 8/67:40 pmICN - STL
1 stop15h 49mDelta
Deal found 4/27$1,854

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 2,991,349 searches. Data last updated April 27, 2024.
Browse through some of the cheapest American Airlines flights traveling from St. Louis to Seoul. Check back soon if you're not seeing flights that suit your needs.
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
1 stop16h 03mAmerican Airlines
Deal found 4/26$1,327
Thu 5/24:41 pmSTL - ICN
2 stops32h 34mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,328
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,330
Fri 10/186:58 pmSTL - ICN
2 stops30h 17mAmerican Airlines
Sat 11/26:35 pmICN - STL
2 stops28h 34mAmerican Airlines
Deal found 4/26$1,529
Fri 10/186:58 pmSTL - ICN
2 stops30h 17mAmerican Airlines
Sat 11/26:35 pmICN - STL
1 stop18h 01mAmerican Airlines
Deal found 4/26$1,531
Wed 8/75:54 amSTL - ICN
1 stop19h 21mAmerican Airlines
Fri 8/165:25 pmICN - STL
1 stop29h 35mAmerican Airlines
Deal found 4/26$1,788
Wed 8/76:58 pmSTL - ICN
2 stops30h 17mAmerican Airlines
Fri 8/165:25 pmICN - STL
1 stop32h 38mAmerican Airlines
Deal found 4/26$1,791
Wed 6/265:27 amSTL - ICN
1 stop19h 48mAmerican Airlines
Mon 9/95:25 pmICN - STL
1 stop16h 50mAmerican Airlines
Deal found 4/26$1,900
Thu 6/138:01 amSTL - ICN
1 stop17h 14mAmerican Airlines
Sun 7/75:25 pmICN - STL
2 stops29h 05mAmerican Airlines
Deal found 4/25$2,542

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

Find cheap flight options from St. Louis to Seoul specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Prices were last updated on April 27, 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 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
1 stop16h 03mAmerican Airlines
Deal found 4/26$1,327
Thu 5/24:41 pmSTL - ICN
2 stops32h 34mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,328
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,330
Tue 4/303:05 pmSTL - ICN
2 stops34h 10mAmerican Airlines
Sat 5/45:25 pmICN - STL
2 stops32h 10mAmerican Airlines
Deal found 4/25$1,491
Wed 5/157:01 amSTL - GMP
2 stops24h 59mJapan Airlines
Sat 5/187:20 pmGMP - STL
2 stops41h 57mJapan Airlines
Deal found 4/26$1,646
Wed 5/156:11 amSTL - ICN
1 stop19h 09mDelta
Tue 6/46:40 pmICN - STL
1 stop19h 00mDelta
Deal found 4/26$1,774
Wed 5/156:11 amSTL - ICN
1 stop19h 09mDelta
Sun 6/210:35 amICN - STL
2 stops27h 05mDelta
Deal found 4/26$1,778
Tue 4/305:00 amSTL - ICN
1 stop20h 15mAmerican Airlines
Sat 5/45:25 pmICN - STL
1 stop19h 35mAmerican Airlines
Deal found 4/26$1,844
Wed 5/156:30 pmSTL - ICN
2 stops31h 55mKLM
Mon 6/311:05 pmICN - STL
2 stops28h 03mKLM
Deal found 4/26$1,852

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 2,991,349 searches. Data last updated April 27, 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 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
1 stop16h 03mAmerican Airlines
Deal found 4/26$1,327
Thu 5/24:41 pmSTL - ICN
2 stops32h 34mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,328
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,330
Wed 9/182:34 pmSTL - ICN
2 stops38h 11mMultiple Airlines
Wed 9/2512:00 pmICN - STL
2 stops39h 33mMultiple Airlines
Deal found 4/26$1,356
Mon 8/267:31 pmSTL - ICN
2 stops25h 29mMultiple Airlines
Mon 9/2312:00 pmICN - STL
2 stops39h 33mMultiple Airlines
Deal found 4/25$1,392
Thu 9/511:51 amSTL - ICN
1 stop26h 39mDelta
Thu 9/124:25 pmICN - STL
1 stop18h 14mDelta
Deal found 4/26$1,428
Thu 9/56:00 amSTL - ICN
2 stops21h 20mDelta
Thu 9/127:20 pmICN - STL
2 stops19h 10mDelta
Deal found 4/26$1,432
Fri 9/137:31 pmSTL - ICN
2 stops25h 29mMultiple Airlines
Fri 9/207:45 pmICN - STL
2 stops31h 48mMultiple Airlines
Deal found 4/26$1,437
Tue 4/303:05 pmSTL - ICN
2 stops34h 10mAmerican Airlines
Sat 5/45:25 pmICN - STL
2 stops32h 10mAmerican Airlines
Deal found 4/25$1,491

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 2,991,349 searches. Data last updated April 27, 2024.
Book one of these great deals on flights from St. Louis to Seoul. Tip: verify your flight details before completing your reservation.
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
1 stop16h 03mAmerican Airlines
Deal found 4/26$1,327
Thu 5/24:41 pmSTL - ICN
2 stops32h 34mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,328
Thu 5/27:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 4/26$1,330
Thu 5/29:30 amSTL - ICN
2 stops42h 05mQatar Airways
Wed 5/151:20 amICN - STL
2 stops36h 39mQatar Airways
Deal found 4/26$2,171

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 2,991,349 searches. Data last updated April 27, 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 9/95:30 pmSTL - ICN
2 stops30h 40mCathay Pacific
Deal found 4/25$711
Sat 8/171:06 pmSTL - ICN
2 stops42h 09mCathay Pacific
Deal found 4/25$777
Sat 8/177:32 pmSTL - ICN
3 stops33h 28mMultiple Airlines
Deal found 4/25$791
Wed 8/712:15 pmSTL - ICN
3 stops30h 30mMultiple Airlines
Deal found 4/26$809
Wed 8/72:21 pmSTL - ICN
2 stops30h 39mMultiple Airlines
Deal found 4/26$814
Tue 7/165:46 pmSTL - ICN
2 stops31h 29mAmerican Airlines
Deal found 4/26$858
Tue 7/167:00 amSTL - ICN
1 stop18h 15mAmerican Airlines
Deal found 4/26$859
Sat 8/105:05 pmSTL - ICN
1 stop31h 20mDelta
Deal found 4/26$873
Sun 8/44:45 pmSTL - ICN
3 stops28h 15mMultiple Airlines
Deal found 4/26$907

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 2,991,349 searches. Data last updated April 27, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,356 - $2,074

Route

Depart

Return

Price

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 9/18

2 stops38h 11m

Incheon Intl

Wed 9/25

2 stops39h 33m

$1,356

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

1 stop26h 39m

Incheon Intl

Thu 9/12

1 stop18h 14m

$1,428

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 9/18

1 stop38h 25m

Incheon Intl

Wed 9/25

2 stops35h 20m

$1,502

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Fri 10/18

2 stops30h 17m

Incheon Intl

Sat 11/2

2 stops28h 34m

$1,529

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Fri 8/30

2 stops25h 25m

Incheon Intl

Fri 9/6

2 stops19h 41m

$1,532

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Wed 5/15

2 stops24h 59m

Seoul Gimpo Intl

Sat 5/18

2 stops41h 57m

$1,646

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 5/15

2 stops31h 55m

Incheon Intl

Sat 6/1

2 stops36h 29m

$1,852

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/12

2 stops31h 39m

Incheon Intl

Wed 9/18

2 stops36h 39m

$1,873

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 5/28

2 stops61h 13m

Incheon Intl

Wed 6/12

2 stops50h 48m

$2,074

Flights are sorted by cheapest first

Deals found on 4/26

When is the cheapest time 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 April 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 Saturday afternoons 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

Average price of flights to Seoul by month

Plan your trip from St. Louis to Seoul by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Seoul is currently $822 while a round-trip flight costs $1,644. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Seoul (average of $1,222). Flying from St. Louis to Seoul in July is currently the most expensive (average of $1,852). 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.

January

$1,222

February

$1,279

March

$1,325

April

$1,349

May

$1,466

June

$1,811

July

$1,852

August

$1,514

September

$1,409

October

$1,411

November

$1,313

December

$1,569

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 April 27, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as Delta, American Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

Korean Air
8.5
Very good
1,189 reviews
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

Japan Airlines
8.3
Very good
1,485 reviews
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

Delta
8.1
Very good
10,951 reviews
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

KLM
7.9
Good
1,623 reviews
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

Cathay Pacific
7.8
Good
1,129 reviews
Korean Air
8.5
Very good
1,189 reviews
Check prices

Comfort

8.3

Food

8.2

Crew

8.8

Entertainment

8.2

Overall

8.5

Boarding

8.6

Reviews

1 / 10

if you can put more multiples language agents in air service especially Chinese or French ,the customer who speaks those languages will be much happier than now

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. 5 airlines have flights to Seoul from Lambert-St Louis on a regular basis.

  • Can I find flights from St. Louis to Seoul for under $1,400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Seoul for under $1,400. The cheapest flight booked recently is on Multiple Airlines for just $1,356, but on average you can expect to pay $1,579.

  • Are there last-minute flights available from St. Louis to Seoul for under $1,400?

    There are currently 4+ open flights from St. Louis to Seoul within the next 7 days for less than $1,400.

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

    Delta, at $1,428, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Air Canada and American Airlines. These flights start at 15% 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 $711. American Airlines flights start at $858 while deals on Delta start at $873 one-way.

  • 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 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 4/26.

See more FAQs

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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.

St. Louis to Incheon Intl flights
Kansas City to Incheon Intl flights
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Springfield to Incheon Intl flights
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Top 5 airlines flying from St. Louis to Seoul

Discover the top 5 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 2,991,349 searches. Data last updated April 27, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,191Average$1,778FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,217Average$1,349FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,346Average$1,747FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$1,390Average$1,631FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Korean AirCheapest$1,743Average$1,940FlexibilityNo 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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