SEL - STL

$560 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 5/31. 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.
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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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Cheap Flights from Seoul to St. Louis

 
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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seoul to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
6:20 pm - 11:59 pmICN-STL
19h 39m1 stop
 Logo
7:32 pm - 5:55 pmSTL-ICN
32h 23m1 stop
Tue, May 13 - Sat, Aug 9
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4:40 pm - 12:04 amICN-STL
21h 24m1 stop
 Logo
7:00 am - 4:40 pmSTL-ICN
19h 40m1 stop
Mon, May 19 - Tue, Jun 10
United Airlines Logo
4:50 pm - 10:02 amICN-STL
31h 12m2 stops
United Airlines Logo
8:25 am - 4:20 amSTL-ICN
29h 55m3 stops
$1,096United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 30
United Airlines Logo
11:30 am - 8:46 pmICN-STL
23h 16m2 stops
United Airlines Logo
5:43 pm - 4:20 amSTL-ICN
20h 37m1 stop
$1,100United Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 30
Air Canada Logo
7:05 pm - 7:43 pmICN-STL
38h 38m1 stop
Air Canada Logo
4:00 pm - 4:05 pmSTL-ICN
34h 05m2 stops
$1,102Air Canada
Find Deal
Tue, May 13 - Sat, Aug 9
Air Canada Logo
5:45 pm - 12:19 pmICN-STL
56h 34m2 stops
Air Canada Logo
9:15 am - 4:05 pmSTL-ICN
40h 50m2 stops
$1,112Air Canada
Find Deal
Tue, May 13 - Sat, Aug 9
ANA Logo
7:55 pm - 12:25 pmGMP-STL
30h 30m2 stops
ANA Logo
8:10 am - 10:20 pmSTL-GMP
24h 10m2 stops
$1,237ANA
Find Deal
Thu, Aug 28 - Tue, Sep 30
ANA Logo
7:55 pm - 2:19 pmGMP-STL
32h 24m2 stops
ANA Logo
9:20 am - 10:20 pmSTL-GMP
23h 00m2 stops
$1,278ANA
Find Deal
Mon, Sep 22 - Tue, Sep 30
Korean Air Logo
7:40 pm - 12:38 amICN-STL
18h 58m1 stop
Korean Air Logo
7:30 am - 3:20 pmSTL-ICN
17h 50m1 stop
$1,441Korean Air
Find Deal
Mon, Aug 25 - Tue, Sep 30
Korean Air Logo
7:40 pm - 12:38 amICN-STL
18h 58m1 stop
Korean Air Logo
7:30 am - 3:20 pmSTL-ICN
17h 50m1 stop
$1,655Korean Air
Find Deal
Wed, Jul 30 - Sun, Aug 31
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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’s the cheapest day of the week to fly from Seoul to St. Louis?

The average price of all round-trip flights from Seoul to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seoul to St. Louis, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from St. Louis, Wednesday is the cheapest day to fly and Friday is the most expensive.

Good to know

Cheapest flight$560
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 $560 for a one-way ticket and $917 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, SkyTeam, and Star Alliance 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.

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.
8.4
Korean AirOverall score based on 1068 reviews
8.3Comfort
8.5Boarding
8.2Entertainment
8.1Food
8.7Crew
Airline reviews

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

8.0 ExcellentEdward, Apr 2025ICN - LAS
Read more Korean Air reviews

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

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

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