SEL - STL

$538 Find Cheap Flights from Seoul to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to St. Louis departing on 5/9. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$989
Delta
Tue 4/14Tue 4/21
ICN - STL • 1 stop
Cheapest one-way
$538
Multiple Airlines
Sat 5/9
ICN - STL • 2 stops
Top airlines
Cheapest • from $989 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seoul and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $711 (round-trip)
Shortest trip • 15h 38m (one-way)
Insights
Insights
Insights
Insights
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seoul to St. Louis (SEL-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seoul to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seoul to St. Louis

Tue, Apr 14 - Tue, Apr 21
Delta Logo
7:20 pm - 12:25 am
ICN
-
STL
19h 05m
1 stop
Delta Logo
7:00 am - 4:50 pm
STL
-
ICN
19h 50m
2 stops
$989Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
7:20 pm - 12:25 am
ICN
-
STL
19h 05m
1 stop
Delta Logo
6:20 am - 4:50 pm
STL
-
ICN
20h 30m
2 stops
$998Delta
Thu, Apr 30 - Thu, May 7
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$1,001Air Canada
Thu, May 28 - Mon, Jun 1
Air Canada Logo
5:45 pm - 12:06 pm
ICN
-
STL
32h 21m
2 stops
Air Canada Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$1,011Air Canada
Mon, Apr 27 - Mon, May 4
Air Canada Logo
5:45 pm - 8:25 am
ICN
-
STL
28h 40m
2 stops
Air Canada Logo
2:20 pm - 4:05 pm
STL
-
ICN
35h 45m
2 stops
$1,013Air Canada
Thu, Apr 30 - Thu, May 7
Air Canada Logo
7:05 pm - 8:04 pm
ICN
-
STL
38h 59m
1 stop
Air Canada Logo
1:00 pm - 4:05 pm
STL
-
ICN
37h 05m
2 stops
$1,014Air Canada
Wed, Apr 29 - Wed, May 6
Air Canada Logo
5:45 pm - 3:25 pm
ICN
-
STL
35h 40m
2 stops
Air Canada Logo
2:20 pm - 4:05 pm
STL
-
ICN
35h 45m
2 stops
$1,016Air Canada
Tue, Apr 14 - Tue, Apr 21
Japan Airlines Logo
8:00 am - 11:57 pm
GMP
-
STL
29h 57m
2 stops
Japan Airlines Logo
8:54 am - 9:15 pm
STL
-
GMP
22h 21m
2 stops
$1,309Japan Airlines
Wed, Apr 15 - Wed, Apr 22
Japan Airlines Logo
12:05 pm - 11:57 pm
GMP
-
STL
25h 52m
2 stops
Japan Airlines Logo
7:12 am - 5:55 pm
STL
-
GMP
20h 43m
2 stops
$1,350Japan Airlines
Sat, Apr 11 - Tue, Apr 21
Multiple Airlines Logo
8:00 am - 2:03 pm
GMP
-
STL
20h 03m
2 stops
Multiple Airlines Logo
5:20 am - 9:15 pm
STL
-
GMP
25h 55m
2 stops
$1,761Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seoul to St. Louis flights

Get data-powered insights and trends into flights from Seoul to St. Louis to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seoul to St. Louis?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seoul to St. Louis were found on Delta ($989) and Air Canada ($1,001).

Good to know

Cheapest flight$538
Flight from Seoul Incheon Airport to St. Louis

When to book flights from Seoul to St. Louis

Are your dates flexible? Find out the best times to travel from Seoul to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seoul to St. Louis

  • What is the cheapest flight from Seoul to St. Louis?

    In the last 3 days, the lowest price for a flight from Seoul to St. Louis was $538 for a one-way ticket and $989 for a round-trip.

  • Do I need a passport to fly between Seoul and St. Louis?

    A passport is required to fly from Seoul to St. Louis.

  • Which airports will I be using when flying from Seoul to St. Louis?

    There are 2 airports in Seoul (Seoul Gimpo Intl and Incheon Intl.) and only 1 airport in St. Louis (Lambert-St Louis). The cheapest flights are generally found on the Seoul Incheon Airport to Lambert-St Louis flight route.

  • Which aircraft models fly most regularly from Seoul to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seoul to St. Louis?

    oneworld, and SkyTeam are the airline alliances operating flights between Seoul and St. Louis, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Seoul to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Seoul is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Seoul with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Seoul up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Seoul to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Seoul to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seoul to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8288 reviews
7.9Comfort
8.1Boarding
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

No pilots so we were two hours late taking off and then no gate agents when we arrived in Salt Lake.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Movie selections were very limited. Meals were not f So good.

Older airplane with worn out seats. No entertainment system at all. Connecting to Wi-Fi was problematic and hit and miss.

AA is flying sub par aging 787's to Tokyo. I fly other 787's long haul and these are at the bottom. Seats don't work well, tray tables don't work well and were dirty. The flight was great, the plane was not.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Everything you need to know for your flight from Seoul to St. Louis

Information on your arrival and departure airports