$461 Cheap Delta flights from St. Louis to Seoul (STL to ICN)

Find The Best Day To Fly from St. Louis to Seoul

Amazing Delta STL to ICN Flight Deals

The cheapest flights to Incheon Intl. found within the past 7 days were $861 round trip and $461 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Sep 28 - Wed, Oct 8
STL
St. Louis
ICN
Seoul
$861 Roundtrip, found 3 days ago
$861
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Sep 28 from St. Louis to Seoul, returning Wed, Oct 8, priced at $861 found 3 days ago
Sun, Mar 1 - Wed, Mar 18
STL
St. Louis
ICN
Seoul
$872 Roundtrip, found 3 days ago
$872
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Mar 1 from St. Louis to Seoul, returning Wed, Mar 18, priced at $872 found 3 days ago
Wed, Jan 7 - Fri, Jan 16
STL
St. Louis
ICN
Seoul
$877 Roundtrip, found 4 days ago
$877
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jan 7 from St. Louis to Seoul, returning Fri, Jan 16, priced at $877 found 4 days ago
Wed, Oct 1 - Fri, Oct 10
STL
St. Louis
ICN
Seoul
$880 Roundtrip, found 3 days ago
$880
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Oct 1 from St. Louis to Seoul, returning Fri, Oct 10, priced at $880 found 3 days ago
Wed, Nov 19 - Sat, Nov 29
STL
St. Louis
ICN
Seoul
$1,002 Roundtrip, found 17 hours ago
$1,002
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Nov 19 from St. Louis to Seoul, returning Sat, Nov 29, priced at $1,002 found 17 hours ago
Sun, Nov 23 - Sat, Nov 29
STL
St. Louis
ICN
Seoul
$1,010 Roundtrip, found 17 hours ago
$1,010
Roundtrip
found 17 hours ago
Select Delta flight, departing Sun, Nov 23 from St. Louis to Seoul, returning Sat, Nov 29, priced at $1,010 found 17 hours ago

ICN From STL Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
N285 Hotel Insadong

N285 Hotel Insadong

2 out of 5
per person
Sep 9 - Sep 13
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to Seoul (ICN)
Shilla Stay Seodaemun Seoul Station

Shilla Stay Seodaemun Seoul Station

4 out of 5
per person
Sep 9 - Sep 13
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to Seoul (ICN)
Crown Park Hotel

Crown Park Hotel

3.5 out of 5
per person
Sep 9 - Sep 13
found 1 day ago
Roundtrip non-stop flight included
St. Louis (STL) to Seoul (ICN)
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Frequently asked questions

Can I catch a flight from STL to Incheon Intl. Airport (ICN) right now?
It's always prudent to learn about any quarantine requirements and travel advice reports in place in your destination. Make sure you check out the Covid-19 Travel Advisor for up-to-date information on booking a flight to Seoul–Incheon Intl. Airport.
What terminal is Delta Air Lines at St. Louis Lambert International Airport?
The information printed on tickets can vary from airline to airline. If you're flying from St. Louis Lambert International Airport to ICN with Delta Air Lines and you can't find your terminal details, contact the airline.
Are there Delta Air Lines non-stop flights from STL to ICN?
As you can't go nonstop from Lambert Field to Seoul–Incheon Intl. Airport with Delta Air Lines, make the most of your stopover. Sit down to a couple of refreshments at a welcoming airport bar, or go for a wander around the terminal and enjoy a little retail therapy.
How long is a Delta Air Lines flight from STL to ICN?
Life is one big journey — and so is your trip from Lambert Field to Incheon Intl. Airport (ICN) with Delta Air Lines. Taking roughly 17 hours and 4 minutes, make it easier on yourself and bring in-flight essentials like a pillow, a sweater and a change of clothes.
How many direct and indirect flights does Delta Air Lines fly from STL to ICN?
You'll have loads of choice if you want to fly with Delta Air Lines from STL to ICN. At the moment, it has about 2 flights every day.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Seoul–Incheon Intl. Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best Delta flight from St. Louis STL to Seoul ICN 

To find the best deals on flights to St. Louis from Seoul with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from St. Louis STL to Seoul ICN with Delta 

If you’re planning a round trip, booking return flights with Delta is usually the most cost-effective option. With airfares ranging from $861 to $1,010, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Delta flights from St. Louis STL to Seoul ICN 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Delta flight from St. Louis to Seoul costs from $461. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seoul ICN from  St. Louis STL with Delta 

To find a cheap Delta flight from St. Louis STL to Seoul ICN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Delta flights from St. Louis STL to Seoul ICN 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover. 

 

Find nonstop flights from St. Louis STL to Seoul ICN with Delta 

If you’re keen to be on Seoul soil fast, don’t waste time with a stopover—filter your search results to show direct Delta flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Delta flights from St. Louis STL to Seoul ICN 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seoul ICN from  St. Louis STL with Delta on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Delta Airports
Hop on a(n) Delta flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ATLUSAHartsfield-Jackson Atlanta Intl.252
DTWUSADetroit Metropolitan Wayne County156
MSPUSAMinneapolis - St. Paul Intl.131
SLCUSASalt Lake City Intl.116
SEAUSASeattle - Tacoma Intl.57
LAXUSALos Angeles Intl.41
AMSNLDSchiphol31
YYCCANCalgary Intl.26
YYZCANPearson Intl.24
JFKUSAJohn F. Kennedy Intl.23

Travelers ❤️ these 🏨 after their flight to Seoul

Grand Hyatt Incheon

Grand Hyatt Incheon

5 out of 5
208, Yeongjonghaeannam-ro 321beon-gil, Jung-gu, Incheon, Incheon
A full-service spa, 3 restaurants, and an indoor pool are all featured at this luxury hotel. Bring the family and enjoy the children's pool, playground, and ...
9.2/10 Wonderful! (2,364 reviews)
"Close to the airport. Very clean and the staff was extremely helpful and friendly."

Reviewed on Aug 15, 2025

Grand Hyatt Incheon
ibis Styles Ambassador Incheon Airport T2

ibis Styles Ambassador Incheon Airport T2

4 out of 5
340 Je2terminal daero Jung gu IBC II, Incheon
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
9/10 Wonderful! (2,753 reviews)
"Great hotel but distant from other restaurants, meaning you’ll be more inclined to get their more expensive meals. Gardens leave something to be desired (don’t go to Korea for gardens though, go for the mountains 👍)"

Reviewed on Aug 15, 2025

ibis Styles Ambassador Incheon Airport T2
Incheon Airport Transit Hotel - Terminal 2

Incheon Airport Transit Hotel - Terminal 2

2.5 out of 5
Terminal 2 Incheon International Airport, Duty Free Area Gate 252, 4th Floor, Incheon
A restaurant and free WiFi in public areas are featured at this hotel. Staff at the 24-hour front desk can provide around-the-clock assistance.
8.6/10 Excellent! (1,003 reviews)
"Excellent service. Clean room. It is kind of noisy though maybe due to thin walls."

Reviewed on Aug 17, 2025

Incheon Airport Transit Hotel - Terminal 2
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.