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Cheap flights from St. Louis (STL) to Seoul (SEL) from $701

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 9/3. 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 16 — May 231
From?
To?
Thu 5/16
Thu 5/23
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 11, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$1,256

One-way from

$717
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 15% 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)
Search Deals

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 32% 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 $1,800 for the month, but tickets can be as low as $1,355. 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 5% on flights from St. Louis to Seoul by exploring options for tickets at noon.

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 2,684,066 searches. Data last updated May 11, 2024.
Take a peek at the cheapest Air Canada 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.
Wed 9/1112:00 pmSTL - ICN
1 stop38h 25mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,283
Wed 9/1812:00 pmSTL - ICN
1 stop38h 25mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/11$1,284
Wed 9/114:05 pmSTL - ICN
2 stops34h 20mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,289
Wed 9/184:05 pmSTL - ICN
2 stops34h 20mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/11$1,290
Fri 8/3012:00 pmSTL - ICN
1 stop38h 25mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,386
Fri 8/304:05 pmSTL - ICN
2 stops34h 20mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,392
Fri 10/1812:00 pmSTL - ICN
1 stop38h 25mAir Canada
Sat 11/25:45 pmICN - STL
2 stops31h 08mAir Canada
Deal found 5/10$1,491
Fri 10/184:05 pmSTL - ICN
2 stops34h 20mAir Canada
Sat 11/25:45 pmICN - STL
2 stops31h 08mAir Canada
Deal found 5/10$1,497
Tue 10/14:05 pmSTL - ICN
1 stop35h 25mAir Canada
Sun 11/36:45 pmICN - STL
2 stops30h 08mAir Canada
Deal found 5/11$1,680

Cheap Cathay Pacific flights from St. Louis to Seoul

Explore cheap flight options specifically provided by Cathay Pacific 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 2,684,066 searches. Data last updated May 11, 2024.
Browse through some of the cheapest Cathay Pacific flights traveling from St. Louis to Seoul. Check back soon if you're not seeing flights that suit your needs.
Thu 9/55:30 pmSTL - ICN
2 stops30h 40mCathay Pacific
Mon 9/93:10 pmICN - STL
2 stops42h 48mCathay Pacific
Deal found 5/9$1,379
Tue 10/155:30 pmSTL - ICN
2 stops53h 05mCathay Pacific
Fri 10/258:15 pmICN - STL
2 stops37h 52mCathay Pacific
Deal found 5/10$1,416
Thu 5/1611:40 amSTL - ICN
2 stops43h 35mCathay Pacific
Mon 5/208:15 pmICN - STL
2 stops37h 31mCathay Pacific
Deal found 5/10$1,800

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 2,684,066 searches. Prices were last updated on May 11, 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 5/145:21 amSTL - ICN
1 stop19h 54mAmerican Airlines
Thu 5/165:25 pmICN - STL
1 stop19h 34mAmerican Airlines
Deal found 5/10$1,674
Tue 5/145:21 amSTL - ICN
1 stop19h 54mAmerican Airlines
Tue 5/285:25 pmICN - STL
2 stops30h 28mAmerican Airlines
Deal found 5/10$1,677
Tue 5/147:01 amSTL - ICN
1 stop18h 14mAmerican Airlines
Thu 5/165:25 pmICN - STL
2 stops29h 54mAmerican Airlines
Deal found 5/10$1,678
Thu 5/166:02 pmSTL - GMP
2 stops26h 43mJapan Airlines
Mon 5/207:20 pmGMP - STL
2 stops41h 57mJapan Airlines
Deal found 5/10$1,726
Tue 5/146:02 pmSTL - GMP
2 stops26h 43mJapan Airlines
Tue 5/287:55 amGMP - STL
2 stops29h 22mJapan Airlines
Deal found 5/10$1,734
Tue 5/149:50 amSTL - ICN
2 stops40h 15mMultiple Airlines
Thu 5/168:40 pmICN - STL
2 stops29h 40mMultiple Airlines
Deal found 5/10$1,767
Tue 5/146:02 pmSTL - ICN
2 stops35h 13mMultiple Airlines
Tue 5/283:10 pmICN - STL
2 stops46h 07mMultiple Airlines
Deal found 5/10$1,773
Thu 5/1611:40 amSTL - ICN
2 stops43h 35mCathay Pacific
Mon 5/208:15 pmICN - STL
2 stops37h 31mCathay Pacific
Deal found 5/10$1,800
Sat 6/84:02 pmSTL - ICN
2 stops34h 23mKLM
Sat 6/1511:05 pmICN - STL
2 stops28h 21mKLM
Deal found 5/10$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 2,684,066 searches. Data last updated May 11, 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.
Wed 9/1112:00 pmSTL - ICN
1 stop38h 25mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,283
Wed 9/114:05 pmSTL - ICN
2 stops34h 20mAir Canada
Wed 9/256:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,289
Thu 9/55:30 pmSTL - ICN
2 stops30h 40mCathay Pacific
Mon 9/93:10 pmICN - STL
2 stops42h 48mCathay Pacific
Deal found 5/9$1,379
Fri 8/3012:00 pmSTL - ICN
1 stop38h 25mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,386
Fri 8/304:05 pmSTL - ICN
2 stops34h 20mAir Canada
Fri 9/66:00 pmICN - STL
2 stops35h 20mAir Canada
Deal found 5/10$1,392
Tue 10/155:30 pmSTL - ICN
2 stops53h 05mCathay Pacific
Fri 10/258:15 pmICN - STL
2 stops37h 52mCathay Pacific
Deal found 5/10$1,416
Thu 9/510:00 amSTL - ICN
1 stop28h 30mDelta
Thu 9/124:25 pmICN - STL
1 stop18h 14mDelta
Deal found 5/10$1,428
Thu 9/57:10 amSTL - ICN
2 stops20h 10mDelta
Thu 9/127:20 pmICN - STL
2 stops19h 10mDelta
Deal found 5/10$1,432
Tue 10/156:00 amSTL - ICN
1 stop18h 25mDelta
Fri 10/2510:35 amICN - STL
1 stop23h 56mDelta
Deal found 5/10$1,478

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 2,684,066 searches. Data last updated May 11, 2024.
Book one of these great deals on flights from St. Louis to Seoul. Tip: verify your flight details before completing your reservation.
Thu 5/166:02 pmSTL - GMP
2 stops26h 43mJapan Airlines
Mon 5/207:20 pmGMP - STL
2 stops41h 57mJapan Airlines
Deal found 5/10$1,726
Thu 5/1611:40 amSTL - ICN
2 stops43h 35mCathay Pacific
Mon 5/208:15 pmICN - STL
2 stops37h 31mCathay Pacific
Deal found 5/10$1,800
Thu 5/166:11 amSTL - ICN
1 stop19h 09mMultiple Airlines
Mon 5/209:25 pmICN - STL
2 stops26h 48mMultiple Airlines
Deal found 5/10$2,025
Thu 5/1611:10 amSTL - ICN
2 stops37h 50mUnited Airlines
Fri 7/194:50 pmICN - STL
2 stops31h 29mUnited Airlines
Deal found 5/10$2,144
Fri 5/175:25 pmSTL - ICN
2 stops31h 35mUnited Airlines
Thu 7/2511:30 amICN - STL
2 stops24h 41mUnited Airlines
Deal found 5/10$2,194
Thu 5/166:11 amSTL - ICN
1 stop19h 09mDelta
Mon 5/2010:35 amICN - STL
1 stop16h 33mDelta
Deal found 5/10$2,246
Thu 5/166:11 amSTL - ICN
1 stop19h 09mKorean Air
Fri 7/196:40 pmICN - STL
1 stop35h 40mKorean Air
Deal found 5/10$2,332
Fri 5/176:30 amSTL - ICN
1 stop20h 50mMultiple Airlines
Thu 7/257:40 pmICN - STL
1 stop15h 56mMultiple Airlines
Deal found 5/10$2,396
Thu 5/166:11 amSTL - ICN
1 stop19h 09mDelta
Fri 7/194:35 pmICN - STL
2 stops19h 01mDelta
Deal found 5/10$2,486

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 2,684,066 searches. Data last updated May 11, 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.
Tue 9/39:44 amSTL - ICN
2 stops38h 26mCathay Pacific
Deal found 5/11$701
Tue 9/39:44 amSTL - ICN
2 stops45h 31mCathay Pacific
Deal found 5/10$717
Tue 9/34:05 pmSTL - ICN
1 stop35h 25mAir Canada
Deal found 5/10$829
Tue 9/34:05 pmSTL - ICN
1 stop35h 25mAir Canada
Deal found 5/11$830
Tue 7/165:46 pmSTL - ICN
2 stops31h 29mAmerican Airlines
Deal found 5/10$858
Tue 7/167:00 amSTL - ICN
1 stop18h 15mAmerican Airlines
Deal found 5/10$859
Wed 7/104:05 pmSTL - ICN
2 stops34h 00mAir Canada
Deal found 5/10$898
Wed 6/51:55 pmSTL - ICN
3 stops58h 10mMultiple Airlines
Deal found 5/10$900
Sat 5/187:41 pmSTL - ICN
3 stops59h 29mMultiple Airlines
Deal found 5/11$905

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 2,684,066 searches. Data last updated May 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,283 - $1,593

Route

Depart

Return

Price

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Wed 9/11

1 stop38h 25m

Incheon Intl

Wed 9/25

2 stops35h 20m

$1,283

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

2 stops30h 40m

Incheon Intl

Mon 9/9

2 stops42h 48m

$1,379

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 9/5

1 stop28h 30m

Incheon Intl

Thu 9/12

1 stop18h 14m

$1,428

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sun 9/1

2 stops41h 10m

Incheon Intl

Sat 9/7

2 stops33h 25m

$1,475

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 10/15

2 stops30h 17m

Incheon Intl

Fri 10/25

1 stop16h 50m

$1,481

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Sat 9/21

2 stops43h 15m

Incheon Intl

Sat 9/28

2 stops27h 03m

$1,564

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Tue 10/15

2 stops47h 59m

Incheon Intl

Thu 10/24

2 stops36h 38m

$1,568

Lambert-St LouisIncheon Intl

STL - ICN

STLICN

Lambert-St Louis

Thu 8/8

2 stops29h 22m

Incheon Intl

Fri 8/16

2 stops36h 34m

$1,584

Lambert-St LouisSeoul Gimpo Intl

STL - GMP

STLGMP

Lambert-St Louis

Thu 9/5

2 stops24h 30m

Seoul Gimpo Intl

Thu 9/12

2 stops21h 37m

$1,593

Flights are sorted by cheapest first

Deals found on 5/10

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 May 5, 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

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 $833 while a round-trip flight costs $1,484. Price data was last updated on May 5, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Seoul (average of $1,225). Flying from St. Louis to Seoul in July is currently the most expensive (average of $1,819). 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

$1,225

February

$1,279

March

$1,324

April

$1,346

May

$1,435

June

$1,786

July

$1,819

August

$1,517

September

$1,410

October

$1,412

November

$1,317

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 May 11, 2024.
Read through reviews of airlines operating flights from St. Louis to Seoul, such as Air Canada, Cathay Pacific 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
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

Korean Air
8.5
Very good
1,179 reviews
Korean Air
8.5
Very good
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

Japan Airlines
8.3
Very good
1,477 reviews
Korean Air
8.5
Very good
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

Delta
8.1
Very good
10,751 reviews
Korean Air
8.5
Very good
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

KLM
7.9
Good
1,589 reviews
Korean Air
8.5
Very good
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

Cathay Pacific
7.8
Good
1,089 reviews
Korean Air
8.5
Very good
1,179 reviews
Check prices

Overall

8.5

Crew

8.8

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Reviews

1 / 10

flight with Delta Airbus is safe, on time and friendly. If the food can have more choices like instant noodles, sandwich other than pizza would be better. Pizza is too salty.

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 $1,300 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 $1,283, but on average you can expect to pay $1,431.

  • Are there last-minute flights available from St. Louis to Seoul for under $1,800?

    There are currently 15+ open flights from St. Louis to Seoul within the next 7 days for less than $1,800.

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

    Air Canada, at $1,283, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Cathay Pacific and Delta. These flights start at 28% 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 $701. Air Canada flights start at $829 while deals on American Airlines start at $858 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 5/10.

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
St. Louis to Gimpo Intl flights
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St. Louis to Busan flights

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 2,684,066 searches. Data last updated May 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,217Average$1,349FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,335Average$1,750FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$1,386Average$1,631FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,555Average$1,762FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest$1,784Average$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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