What is the cheapest airline that flies from Lambert-St Louis to South Korea?

Cathay Pacific, Korean Air, and Japan Airlines are the most popular carriers operating from Lambert-St Louis to South Korea

What airlines fly to South Korea?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to South Korea from St. Louis according to our data. Delta is the first choice among our users, with 64% of people opting to fly with this airline when traveling to South Korea. Keep in mind that there are 5 different airlines that fly to South Korea on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to South Korea?

Prices for flights from Lambert-St Louis Airport to South Korea were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to South Korea?

There are 5 operators available for flights from Lambert-St Louis Airport to South Korea as of September 2026.

How old do you have to be to fly from Lambert-St Louis Airport to South Korea?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to South Korea.

What documentation or ID do you need to fly to South Korea?

The necessary travel and health documents for your South Korea trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$575 Cheap Flights from St. Louis to South Korea in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to South Korea

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:29 am - 5:30 pmSTL Lambert-St Louis-ICN Incheon Intl

21h 01m1 stop Seattle/Tacoma Intl

7:35 pm - 11:59 pmICN Incheon Intl-STL Lambert-St Louis

18h 24m1 stop Seattle/Tacoma Intl

$1,080Alaska Airlines

Thu, Sep 24 - Mon, Sep 28

6:04 am - 12:40 amSTL Lambert-St Louis-ICN Incheon Intl

28h 36m2 stops Los Angeles Los Angeles Hong Kong Intl

7:35 pm - 4:34 pmICN Incheon Intl-STL Lambert-St Louis

35h 59m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,091Multiple Airlines

Mon, Oct 26 - Wed, Nov 25

12:10 pm - 4:05 pmSTL Lambert-St Louis-ICN Incheon Intl

37h 55m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

8:10 pm - 3:26 pmICN Incheon Intl-STL Lambert-St Louis

34h 16m1 stop Toronto Pearson Intl

$1,135Air Canada

Wed, Oct 14 - Tue, Nov 17

4:05 pm - 4:10 pmSTL Lambert-St Louis-ICN Incheon Intl

34h 05m2 stops Toronto Pearson Intl Vancouver Intl

8:10 pm - 3:26 pmICN Incheon Intl-STL Lambert-St Louis

34h 16m1 stop Toronto Pearson Intl

$1,140Air Canada

Mon, Oct 26 - Wed, Nov 25

9:47 am - 5:20 pmSTL Lambert-St Louis-ICN Incheon Intl

17h 33m1 stop Minneapolis St Paul

8:35 pm - 11:21 pmICN Incheon Intl-STL Lambert-St Louis

16h 46m1 stop Minneapolis St Paul

$1,196Delta

Thu, Oct 22 - Sun, Oct 25

6:54 pm - 2:10 pmSTL Lambert-St Louis-ICN Incheon Intl

29h 16m1 stop Atlanta Hartsfield-Jackson

9:35 am - 8:51 pmICN Incheon Intl-STL Lambert-St Louis

26h 16m1 stop Detroit Metropolitan Wayne County

$1,196Delta

Mon, Oct 5 - Wed, Nov 4

6:32 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

19h 13m1 stop Dallas/Fort Worth

5:50 pm - 9:59 pmICN Incheon Intl-STL Lambert-St Louis

18h 09m1 stop Dallas/Fort Worth

$1,196American Airlines

Tue, Oct 6 - Tue, Oct 20

6:32 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

19h 13m1 stop Dallas/Fort Worth

5:50 pm - 9:59 pmICN Incheon Intl-STL Lambert-St Louis

18h 09m1 stop Dallas/Fort Worth

$1,196American Airlines

Mon, Oct 5 - Mon, Oct 12

7:08 am - 3:00 pmSTL Lambert-St Louis-ICN Incheon Intl

17h 52m1 stop San Francisco

12:45 pm - 8:59 pmICN Incheon Intl-STL Lambert-St Louis

23h 14m2 stops San Francisco Denver Intl

$1,201United Airlines

Mon, Oct 5 - Wed, Nov 4

5:10 am - 3:00 pmSTL Lambert-St Louis-ICN Incheon Intl

19h 50m2 stops Denver Intl San Francisco

5:15 pm - 12:13 pmICN Incheon Intl-STL Lambert-St Louis

32h 58m3 stops Newark Houston George Bush Intcntl Chicago O'Hare Intl

$1,466United Airlines

Mon, Oct 5 - Mon, Oct 12

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

18h 45m1 stop Dallas/Fort Worth

5:50 pm - 11:43 pmICN Incheon Intl-STL Lambert-St Louis

19h 53m1 stop Dallas/Fort Worth

$1,124American Airlines

Sat, Sep 12 - Mon, Sep 14

7:00 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

18h 45m1 stop Dallas/Fort Worth

5:50 pm - 11:43 pmICN Incheon Intl-STL Lambert-St Louis

19h 53m1 stop Dallas/Fort Worth

$1,124American Airlines

Sun, Sep 13 - Tue, Sep 15

7:00 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

18h 45m1 stop Dallas/Fort Worth

5:50 pm - 11:43 pmICN Incheon Intl-STL Lambert-St Louis

19h 53m1 stop Dallas/Fort Worth

$1,124American Airlines

Wed, Sep 16 - Fri, Sep 25

7:00 am - 3:45 pmSTL Lambert-St Louis-ICN Incheon Intl

18h 45m1 stop Dallas/Fort Worth

5:50 pm - 12:27 amICN Incheon Intl-STL Lambert-St Louis

20h 37m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$1,128American Airlines

Wed, Sep 16 - Fri, Sep 25

7:36 pm - 11:00 amSTL Lambert-St Louis-ICN Incheon Intl

25h 24m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

7:45 pm - 3:38 pmICN Incheon Intl-STL Lambert-St Louis

33h 53m3 stops Taipei City Taiwan Taoyuan Intl San Francisco Chicago O'Hare Intl

$1,438Multiple Airlines

Sun, Sep 13 - Tue, Sep 15

8:46 am - 7:55 pmSTL Lambert-St Louis-TAE Daegu

21h 09m2 stops Minneapolis St Paul Incheon Intl

7:55 am - 3:54 pmTAE Daegu-STL Lambert-St Louis

45h 59m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,453Korean Air

Wed, Sep 16 - Sun, Sep 20

3:19 pm - 11:00 amSTL Lambert-St Louis-ICN Incheon Intl

29h 41m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

7:45 pm - 3:38 pmICN Incheon Intl-STL Lambert-St Louis

33h 53m3 stops Taipei City Taiwan Taoyuan Intl San Francisco Chicago O'Hare Intl

$1,478Multiple Airlines

Sat, Sep 12 - Mon, Sep 14

8:46 am - 7:55 pmSTL Lambert-St Louis-TAE Daegu

21h 09m2 stops Minneapolis St Paul Incheon Intl

7:55 am - 3:54 pmTAE Daegu-STL Lambert-St Louis

45h 59m2 stops Incheon Intl Atlanta Hartsfield-Jackson

$1,481Korean Air

Wed, Sep 16 - Sun, Sep 20

9:00 pm - 11:00 amSTL Lambert-St Louis-ICN Incheon Intl

24h 00m2 stops Los Angeles Los Angeles Taipei City Taiwan Taoyuan Intl

7:45 pm - 12:40 pmICN Incheon Intl-STL Lambert-St Louis

30h 55m3 stops Taipei City Taiwan Taoyuan Intl Los Angeles Los Angeles Denver Intl

$2,798Multiple Airlines

Wed, Sep 16 - Fri, Sep 25

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American Airlines flights from St. Louis to South Korea

Our best American Airlines deals on St. Louis to South Korea flight tickets

American Airlines

Sep 16

STL7:00 amLambert-St Louis

18h 45m

1 stop

ICN3:45 pmIncheon Intl

Sep 25

ICN5:50 pmIncheon Intl

19h 53m

1 stop

STL11:43 pmLambert-St Louis

$1,124

American Airlines

Sep 16

STL7:00 amLambert-St Louis

18h 45m

1 stop

ICN3:45 pmIncheon Intl

Sep 25

ICN5:50 pmIncheon Intl

20h 37m

2 stops

STL12:27 amLambert-St Louis

$1,128

American Airlines

Sep 16

STL5:00 amLambert-St Louis

20h 45m

2 stops

ICN3:45 pmIncheon Intl

Sep 25

ICN5:50 pmIncheon Intl

20h 37m

2 stops

STL12:27 amLambert-St Louis

$1,129

Air Canada flights from St. Louis to South Korea

Our best Air Canada deals on St. Louis to South Korea flight tickets

Air Canada

Oct 14

STL12:10 pmLambert-St Louis

37h 55m

2 stops

ICN4:05 pmIncheon Intl

Nov 17

ICN8:10 pmIncheon Intl

34h 16m

1 stop

STL3:26 pmLambert-St Louis

$1,135

Air Canada

Oct 26

STL4:05 pmLambert-St Louis

35h 20m

1 stop

ICN5:25 pmIncheon Intl

Nov 25

ICN6:55 pmIncheon Intl

35h 31m

2 stops

STL3:26 pmLambert-St Louis

$1,140

Air Canada

Oct 26

STL4:05 pmLambert-St Louis

35h 20m

1 stop

ICN5:25 pmIncheon Intl

Nov 25

ICN8:10 pmIncheon Intl

34h 16m

1 stop

STL3:26 pmLambert-St Louis

$1,174

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Thu 9/24

6:29 am-5:30 pm

1 stop21h 01m

Incheon Intl

Mon 9/28

7:35 pm-11:59 pm

1 stop18h 24m

$1,080

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/26

6:04 am-12:40 am

2 stops28h 36m

Incheon Intl

Wed 11/25

7:35 pm-4:34 pm

2 stops35h 59m

$1,091

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Wed 10/14

12:10 pm-4:05 pm

2 stops37h 55m

Incheon Intl

Tue 11/17

8:10 pm-3:26 pm

1 stop34h 16m

$1,135

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/26

4:05 pm-4:10 pm

2 stops34h 05m

Incheon Intl

Wed 11/25

8:10 pm-3:26 pm

1 stop34h 16m

$1,140

Quickest round-trip

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Thu 10/22

9:47 am-5:20 pm

1 stop17h 33m

Incheon Intl

Sun 10/25

8:35 pm-11:21 pm

1 stop16h 46m

$1,196

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/5

6:54 pm-2:10 pm

1 stop29h 16m

Incheon Intl

Wed 11/4

9:35 am-8:51 pm

1 stop26h 16m

$1,196

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Tue 10/6

6:32 am-3:45 pm

1 stop19h 13m

Incheon Intl

Tue 10/20

5:50 pm-9:59 pm

1 stop18h 09m

$1,196

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/5

6:32 am-3:45 pm

1 stop19h 13m

Incheon Intl

Mon 10/12

5:50 pm-9:59 pm

1 stop18h 09m

$1,196

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/5

7:08 am-3:00 pm

1 stop17h 52m

Incheon Intl

Wed 11/4

12:45 pm-8:59 pm

2 stops23h 14m

$1,201

St. LouisIncheon

STL Lambert-St Louis - ICN Incheon Intl

STLICN

Lambert-St Louis

Mon 10/5

5:10 am-3:00 pm

2 stops19h 50m

Incheon Intl

Mon 10/12

5:15 pm-12:13 pm

3 stops32h 58m

$1,466

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to South Korea

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to South Korea?

If you aren’t able to travel to South Korea during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $908.

Can stopping save me money on St. Louis to South Korea flights?

You could potentially save up to 31% on your flight if you consider stops on a St. Louis to South Korea flight.

Cheap St. Louis to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to South Korea

Best Price Found	$575
Fastest flight time	19h 25m
Direct flights	None

The best one-way flight to South Korea from St. Louis in the past 72 hours is $575. The best round-trip flight deal from St. Louis to South Korea found on momondo in the last 72 hours is $1,080.

The fastest flight from St. Louis to South Korea takes 19h 25m

There are no direct flights from St. Louis to South Korea. There are no popular flight routes from St. Louis to South Korea.

Search flight deals

Frequently asked questions about flying from St. Louis to South Korea

When did momondo last update prices for flights from Lambert-St Louis Airport to South Korea?
Prices for flights from Lambert-St Louis Airport to South Korea were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to South Korea?
There are 5 operators available for flights from Lambert-St Louis Airport to South Korea as of September 2026.
How old do you have to be to fly from Lambert-St Louis Airport to South Korea?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to South Korea.
What documentation or ID do you need to fly to South Korea?
The necessary travel and health documents for your South Korea trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to South Korea

Compare and see reviews for airlines that fly from St. Louis to South Korea with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $832	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
Delta	PriceFrom $846	Free Cancellation	Rating 7.8 8,554 reviews	Search Delta flights
United Airlines	PriceFrom $865	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
Korean Air	PriceFrom $999	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Air Canada	PriceFrom $1,083	Free Cancellation	Rating 7.1 11,609 reviews	Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to South Korea?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to South Korea. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to South Korea with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to South Korea from St. Louis with this policy.

How can momondo help me find flights from St. Louis to South Korea?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to South Korea.

I’m not ready to book a flight from St. Louis to South Korea right now. Can momondo alert me if prices change?

Price alerts on flights to South Korea from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular cities in South Korea

Flights to Seoulfrom $612

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Flights to Daegufrom $1,011

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Flights to Ulsanfrom $1,469

Flights to Muan

Cheap flights from St. Louis to South Korea from $575

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to South Korea departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from St. Louis to South Korea

Our best American Airlines deals on St. Louis to South Korea flight tickets

Air Canada flights from St. Louis to South Korea

Our best Air Canada deals on St. Louis to South Korea flight tickets

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

See travel insights to South Korea from

How to get the cheapest flight ticket from St. Louis to South Korea

What is the cheapest month to fly to South Korea?

Can stopping save me money on St. Louis to South Korea flights?

What is the cheapest airline that flies from Lambert-St Louis to South Korea?

What airlines fly to South Korea?

Cheap St. Louis to South Korea flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to South Korea

Best airlines flying from St. Louis to South Korea

Compare and see reviews for airlines that fly from St. Louis to South Korea with momondo

Why use momondo?

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Korea

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo

St. Louis flight routes

According to popular flight searches on momondo this year

South Korea flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to South Korea

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Cabin classes currently available on flights to South Korea

List of cabin classes available on flights landing in South Korea. Availability may vary depending on flight origin and airline.

Complete your trip to South Korea

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According to popular flight searches on momondo this year