What are the cheapest airlines to fly from South Korea to St. Louis one-way?

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $700. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from South Korea to St. Louis for a low price.

What is the cheapest month to book a flight from South Korea to St. Louis?

Currently, August is the cheapest month in which you can book a flight from South Korea to St. Louis (average of $311). Flying from South Korea to St. Louis in March is currently the most expensive (average of $356). 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.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular routes from South Korea to St. Louis?

The most popular route from South Korea to St. Louis is Incheon Intl - Lambert-St Louis. You may also consider Seoul Gimpo Intl - Lambert-St Louis or Busan Gimhae - Lambert-St Louis.

What airport do you fly into for flights to St. Louis from South Korea?

Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from South Korea.

Can I find deals for flights from South Korea to St. Louis that include hotel bookings?

Yes. In addition to deals on South Korea to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from South Korea to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to St. Louis.

Can I find deals for business class flights from South Korea to St. Louis?

Yes. Cheapflights offers flight deals from South Korea to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$571+ Flights from South Korea to St. Louis

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Cheap flight deals from South Korea to St. Louis

Round-trip from	$571 (Trip.com)

From South Korea to Lambert-St Louis

Search Deals

Find flight deals from South Korea to St. Louis

Cheapest flights from South Korea to St. Louis
Explore the most affordable flight options available from South Korea to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

vie. 9/126:00 pmICN - STL

1 stop39h 57mAir Canada

vie. 9/194:05 pmSTL - ICN

2 stops34h 10mAir Canada

Deal found 7/29

$571

mar. 11/1812:45 pmICN - STL

1 stop18h 42mUnited Airlines

dom. 11/235:29 pmSTL - ICN

1 stop31h 46mUnited Airlines

Deal found 7/30

$647

vie. 9/125:25 pmICN - STL

1 stop19h 02mAmerican Airlines

vie. 9/195:18 amSTL - ICN

1 stop20h 12mAmerican Airlines

Deal found 7/29

$654

sáb. 9/136:40 pmICN - STL

1 stop34h 04mDelta

sáb. 9/205:30 pmSTL - ICN

1 stop31h 50mDelta

Deal found 7/30

$688

lun. 10/136:40 pmICN - STL

1 stop18h 22mKorean Air

mar. 10/218:53 amSTL - ICN

1 stop18h 27mKorean Air

Deal found 7/30

$701

jue. 9/256:20 pmICN - STL

1 stop19h 39mMultiple Airlines

sáb. 10/183:57 pmSTL - ICN

1 stop35h 58mMultiple Airlines

Deal found 7/29

$777

vie. 11/148:35 pmICN - STL

1 stop33h 43mHawaiian Airlines

sáb. 11/224:08 pmSTL - ICN

1 stop35h 27mHawaiian Airlines

Deal found 7/28

$938

vie. 9/127:55 amGMP - STL

2 stops26h 37mJapan Airlines

vie. 9/198:50 amSTL - GMP

2 stops23h 00mJapan Airlines

Deal found 7/29

$1,029

lun. 10/137:55 pmGMP - STL

2 stops32h 32mANA

mar. 10/2112:25 pmSTL - GMP

2 stops43h 55mANA

Deal found 7/30

$1,233

lun. 9/157:55 amGMP - STL

2 stops21h 14mMultiple Airlines

mar. 10/148:04 pmSTL - GMP

2 stops24h 41mMultiple Airlines

Deal found 7/28

$1,289

Best flights from South Korea to St. Louis
Discover carefully curated flight deals from South Korea to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 31, 2025.

vie. 9/126:00 pmICN - STL

1 stop39h 57mAir Canada

vie. 9/194:05 pmSTL - ICN

2 stops34h 10mAir Canada

Deal found 7/29

$571

mar. 11/1812:45 pmICN - STL

1 stop18h 42mUnited Airlines

dom. 11/235:29 pmSTL - ICN

1 stop31h 46mUnited Airlines

Deal found 7/30

$647

vie. 9/125:25 pmICN - STL

1 stop19h 02mAmerican Airlines

vie. 9/195:18 amSTL - ICN

1 stop20h 12mAmerican Airlines

Deal found 7/29

$654

sáb. 9/136:40 pmICN - STL

1 stop34h 04mDelta

sáb. 9/205:30 pmSTL - ICN

1 stop31h 50mDelta

Deal found 7/30

$688

lun. 10/136:40 pmICN - STL

1 stop18h 22mKorean Air

mar. 10/218:53 amSTL - ICN

1 stop18h 27mKorean Air

Deal found 7/30

$701

jue. 9/256:20 pmICN - STL

1 stop19h 39mMultiple Airlines

sáb. 10/183:57 pmSTL - ICN

1 stop35h 58mMultiple Airlines

Deal found 7/29

$777

vie. 11/148:35 pmICN - STL

1 stop33h 43mHawaiian Airlines

sáb. 11/224:08 pmSTL - ICN

1 stop35h 27mHawaiian Airlines

Deal found 7/28

$938

vie. 9/127:55 amGMP - STL

2 stops26h 37mJapan Airlines

vie. 9/198:50 amSTL - GMP

2 stops23h 00mJapan Airlines

Deal found 7/29

$1,029

lun. 10/137:55 pmGMP - STL

2 stops32h 32mANA

mar. 10/2112:25 pmSTL - GMP

2 stops43h 55mANA

Deal found 7/30

$1,233

lun. 9/157:55 amGMP - STL

2 stops21h 14mMultiple Airlines

mar. 10/148:04 pmSTL - GMP

2 stops24h 41mMultiple Airlines

Deal found 7/28

$1,289

Last-minute flights from South Korea to St. Louis
Discover last-minute flight deals from South Korea to St. Louis. Data last updated julio 31, 2025 and is based on user searches.

lun. 8/45:45 pmICN - STL

2 stops40h 00mAir Canada

lun. 8/111:30 pmSTL - ICN

2 stops60h 35mAir Canada

Deal found 7/31

$1,165

jue. 8/77:05 pmICN - STL

2 stops38h 55mAir Canada

lun. 8/181:30 pmSTL - ICN

2 stops36h 35mAir Canada

Deal found 7/31

$1,172

jue. 8/79:00 amICN - STL

2 stops38h 59mUnited Airlines

sáb. 8/165:41 pmSTL - ICN

1 stop20h 39mUnited Airlines

Deal found 7/31

$1,445

vie. 8/89:25 pmICN - STL

3 stops35h 10mAlaska Airlines

sáb. 8/167:32 pmSTL - ICN

2 stops33h 28mAlaska Airlines

Deal found 7/31

$2,081

sáb. 8/96:40 pmICN - STL

1 stop18h 40mKorean Air

dom. 8/178:46 amSTL - ICN

1 stop18h 34mKorean Air

Deal found 7/31

$1,298

sáb. 8/97:20 pmICN - STL

1 stop18h 39mMultiple Airlines

dom. 8/178:46 amSTL - ICN

1 stop18h 34mMultiple Airlines

Deal found 7/31

$1,505

dom. 8/107:55 pmGMP - STL

2 stops37h 36mANA

dom. 8/176:15 amSTL - GMP

2 stops26h 05mANA

Deal found 7/31

$2,167

mar. 8/197:40 pmICN - STL

1 stop18h 58mDelta

dom. 11/166:59 pmSTL - ICN

2 stops30h 31mDelta

Deal found 7/30

$778

jue. 8/216:20 pmICN - STL

1 stop19h 39mMultiple Airlines

jue. 8/286:00 amSTL - ICN

1 stop21h 55mMultiple Airlines

Deal found 7/31

$1,082

vie. 8/227:40 pmICN - STL

1 stop18h 58mKorean Air

vie. 8/298:46 amSTL - ICN

1 stop18h 34mKorean Air

Deal found 7/31

$1,028

mar. 8/2611:30 amICN - STL

1 stop19h 23mUnited Airlines

mar. 9/165:30 pmSTL - ICN

2 stops20h 50mUnited Airlines

Deal found 7/30

$791

mar. 8/267:55 amGMP - STL

2 stops18h 59mJapan Airlines

mar. 9/168:50 amSTL - GMP

2 stops23h 00mJapan Airlines

Deal found 7/30

$1,334

One-way flights from South Korea to St. Louis
Search for one-way flight options from South Korea to St. Louis. Find affordable one-way fares based on user searches. Data last updated julio 31, 2025.

dom. 8/1712:45 pmICN - STL

2 stops38h 57mMultiple Airlines

Deal found 7/28

$617

lun. 12/226:55 pmICN - STL

2 stops35h 34mAir Canada

Deal found 7/29

$700

lun. 12/226:00 pmICN - STL

1 stop19h 30mUnited Airlines

Deal found 7/29

$900

dom. 8/179:25 pmICN - STL

1 stop35h 10mAlaska Airlines

Deal found 7/31

$982

vie. 8/157:55 amGMP - STL

2 stops25h 14mJapan Airlines

Deal found 7/30

$1,002

dom. 12/2112:20 amICN - STL

2 stops32h 38mQatar Airways

Deal found 7/30

$1,118

sáb. 8/96:40 pmICN - STL

1 stop18h 40mKorean Air

Deal found 7/31

$1,234

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 9/12

6:00 pm-7:57 pm

1 stop39h 57m

Lambert-St Louis

vie. 9/19

4:05 pm-4:15 pm

2 stops34h 10m

$571

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

mar. 11/18

12:45 pm-4:27 pm

1 stop18h 42m

Lambert-St Louis

dom. 11/23

5:29 pm-4:15 pm

1 stop31h 46m

$647

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 9/12

5:25 pm-10:27 pm

1 stop19h 02m

Lambert-St Louis

vie. 9/19

5:18 am-3:30 pm

1 stop20h 12m

$654

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

sáb. 9/13

6:40 pm-2:44 pm

1 stop34h 04m

Lambert-St Louis

sáb. 9/20

5:30 pm-3:20 pm

1 stop31h 50m

$688

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

lun. 10/13

6:40 pm-11:02 pm

1 stop18h 22m

Lambert-St Louis

mar. 10/21

8:53 am-5:20 pm

1 stop18h 27m

$701

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

jue. 9/25

6:20 pm-11:59 pm

1 stop19h 39m

Lambert-St Louis

sáb. 10/18

3:57 pm-5:55 pm

1 stop35h 58m

$777

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 11/14

8:35 pm-3:18 pm

1 stop33h 43m

Lambert-St Louis

sáb. 11/22

4:08 pm-6:35 pm

1 stop35h 27m

$938

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

vie. 9/12

7:55 am-8:32 pm

2 stops26h 37m

Lambert-St Louis

vie. 9/19

8:50 am-9:50 pm

2 stops23h 00m

$1,029

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

lun. 10/13

7:55 pm-2:27 pm

2 stops32h 32m

Lambert-St Louis

mar. 10/21

12:25 pm-10:20 pm

2 stops43h 55m

$1,233

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

lun. 9/15

7:55 am-3:09 pm

2 stops21h 14m

Lambert-St Louis

mar. 10/14

8:04 pm-10:45 am

2 stops24h 41m

$1,289

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 17 results

Best time to book a flight from South Korea to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Korea 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.

Cheapflights Insights

Everything you need to know about your flight from South Korea to St. Louis

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

When flying from South Korea to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing St. Louis

See what other customers who have flown with Korean Air, ANA, and Japan Airlines from South Korea to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Korean Air

8.4

Very good

1,121 reviews

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

ANA

8.4

Very good

922 reviews

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Japan Airlines

8.3

Very good

1,536 reviews

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Alaska Airlines

8.0

Very good

10,000 reviews

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Delta

8.0

Very good

7,981 reviews

Korean Air

8.4

Very good

1,121 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

What airport do you fly into for flights to St. Louis from South Korea?
Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from South Korea.
What are the cheapest airlines to fly from South Korea to St. Louis one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $700. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from South Korea to St. Louis for a low price.
What are the most popular routes from South Korea to St. Louis?
The most popular route from South Korea to St. Louis is Incheon Intl - Lambert-St Louis. You may also consider Seoul Gimpo Intl - Lambert-St Louis or Busan Gimhae - Lambert-St Louis.
Can I find deals for flights from South Korea to St. Louis that include hotel bookings?
Yes. In addition to deals on South Korea to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from South Korea to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to St. Louis.
Can I find deals for business class flights from South Korea to St. Louis?
Yes. Cheapflights offers flight deals from South Korea to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from South Korea to St. Louis?
Currently, August is the cheapest month in which you can book a flight from South Korea to St. Louis (average of $311). Flying from South Korea to St. Louis in March is currently the most expensive (average of $356). 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Chesterfield

Festus

Farmington

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Top airline flying from South Korea to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$687	Average$942	FlexibilityNo cancel fee	On-timeN/A

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$571+ Cheap flights from South Korea to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from South Korea to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from South Korea to St. Louis

Keep the following information in mind while searching for South Korea to St. Louis flight deals. Data was last updated julio 31, 2025.

Round-trip from

Find flight deals from South Korea to St. Louis

Cheapest flights from South Korea to St. LouisExplore the most affordable flight options available from South Korea to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Explore the most affordable flight options available from South Korea to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Korea to St. Louis that are best for you.

Best time to book a flight from South Korea to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Korea with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from South Korea to St. Louis

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

Find hourly flight availability from South Korea to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

Reviews of airlines servicing St. Louis

See what other customers who have flown with Korean Air, ANA, and Japan Airlines from South Korea to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from South Korea to St. Louis. 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 into for flights to St. Louis from South Korea?

What are the cheapest airlines to fly from South Korea to St. Louis one-way?

What are the most popular routes from South Korea to St. Louis?

Can I find deals for flights from South Korea to St. Louis that include hotel bookings?

How can I find direct flights from South Korea to St. Louis?

Can I find deals for business class flights from South Korea to St. Louis?

What is the cheapest month to book a flight from South Korea to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for South Korea to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from South Korea to St. Louis

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Cheapest flights from South Korea to St. Louis
Explore the most affordable flight options available from South Korea to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.