SEL - STL

$565 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 5/14. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$1,288
ANA
Mon 9/28Thu 10/8
GMP - STL • 2 stops
Cheapest one-way
$565
Multiple Airlines
Thu 5/14
ICN - STL • 3 stops
Top airlines
Cheapest • from $1,288 (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
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Mon, Sep 28 - Thu, Oct 8
ANA Logo
7:55 pm - 12:20 pm
GMP
-
STL
30h 25m
2 stops
ANA Logo
6:15 am - 10:20 pm
STL
-
GMP
26h 05m
2 stops
$1,288ANA
Mon, May 25 - Fri, May 29
Multiple Airlines Logo
7:35 pm - 11:54 pm
ICN
-
STL
18h 19m
1 stop
Multiple Airlines Logo
3:11 pm - 9:40 pm
STL
-
ICN
40h 29m
2 stops
$1,291Multiple Airlines
Fri, Oct 23 - Tue, Oct 27
Air Canada Logo
5:45 pm - 2:00 pm
ICN
-
STL
34h 15m
2 stops
Air Canada Logo
4:15 pm - 4:10 pm
STL
-
ICN
33h 55m
2 stops
$1,293Air Canada
Mon, Sep 28 - Thu, Oct 8
Multiple Airlines Logo
9:20 pm - 11:59 pm
ICN
-
STL
16h 39m
1 stop
Multiple Airlines Logo
3:24 pm - 4:30 am
STL
-
ICN
23h 06m
1 stop
$1,295Multiple Airlines
Fri, Oct 23 - Tue, Oct 27
Air Canada Logo
5:45 pm - 2:00 pm
ICN
-
STL
34h 15m
2 stops
Air Canada Logo
4:15 pm - 4:10 pm
STL
-
ICN
33h 55m
2 stops
$1,301Air Canada
Fri, Oct 23 - Tue, Oct 27
Air Canada Logo
5:45 pm - 2:00 pm
ICN
-
STL
34h 15m
2 stops
Air Canada Logo
4:15 pm - 5:25 pm
STL
-
ICN
35h 10m
1 stop
$1,319Air Canada
Fri, Oct 23 - Tue, Oct 27
Korean Air Logo
7:40 pm - 11:18 pm
ICN
-
STL
17h 38m
1 stop
Korean Air Logo
6:30 am - 3:50 pm
STL
-
ICN
19h 20m
1 stop
$1,331Korean Air
Fri, Oct 23 - Tue, Oct 27
Korean Air Logo
7:40 pm - 11:18 pm
ICN
-
STL
17h 38m
1 stop
Korean Air Logo
6:30 am - 3:50 pm
STL
-
ICN
19h 20m
1 stop
$1,338Korean Air
Tue, Jun 23 - Tue, Jul 14
Japan Airlines Logo
8:00 am - 11:56 pm
GMP
-
STL
29h 56m
2 stops
Japan Airlines Logo
8:36 am - 10:40 am
STL
-
GMP
36h 04m
2 stops
$1,540Japan Airlines
Tue, Jun 23 - Tue, Jul 14
Japan Airlines Logo
8:00 am - 11:56 pm
GMP
-
STL
29h 56m
2 stops
Japan Airlines Logo
8:36 am - 9:15 pm
STL
-
GMP
22h 39m
2 stops
$1,542Japan 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.

What is the cheapest month to fly from Seoul to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seoul to St. Louis is April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are January and July, where the average cost of round-trip tickets is $1,498 and $1,100 respectively.

Good to know

Cheapest flight$565
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 $565 for a one-way ticket and $1,288 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?

    SkyTeam is the only airline alliance operating flights between Seoul and St. Louis.

  • 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 airline 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 8464 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
Airline reviews

Round trip flight to Canada and back to the US was smooth and efficient.

8.0 ExcellentBrent, Apr 2026
YWG - MSP
Read more Delta reviews

Round trip flight to Canada and back to the US was smooth and efficient.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

Spanish speaker flight attendants were incredibly rude. A male flight attendant named Allen, grabbed my bag out of the overhead bin and moved it without my permission. When I asked what he was doing, he informed me that the overhead bins were public space? It would be easy to ignore this comment, as you don’t know the whole story, but the flight attendants were militant and rude. Delta, you can do better!

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

My business class seat was inoperable and unable to recline for 10 hour flight.

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

Information on your arrival and departure airports