$560 Find Cheap Flights from South Korea 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 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.
1 adult

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 for flights 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 for flights 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 22% 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.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from South Korea to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from South Korea 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 South Korea to St. Louis

KAYAK's recommended round-trip deals from the most popular airlines that fly from South Korea 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
 Logo
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
 Logo
4:40 pm - 12:04 amICN-STL
21h 24m1 stop
 Logo
7:00 am - 4:40 pmSTL-ICN
19h 40m1 stop
Tue, May 20 - Wed, Jun 11
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
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
Delta Logo
8:05 am - 12:43 amPUS-STL
30h 38m2 stops
Delta Logo
7:15 pm - 8:45 pmSTL-PUS
35h 30m2 stops
$1,602Delta
Find Deal
Fri, Jun 13 - Fri, Jun 20
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
Useful Info

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

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

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to St. Louis on KAYAK are from Incheon, which takes 17h 56m, Seoul, which takes 18h 53m, and Busan, which takes 30h 38m.

How many direct flights to St. Louis are there each day?

There are around 219 direct flights from within South Korea to St. Louis every day. Most flights depart in the morning, with 8:00 am the most common departure time and 47% of flights departing in the morning.


Good to know

Low seasonMarch
High seasonJuly
Cheapest flight$560
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Seoul Incheon Airport to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    The city center of St. Louis is 13 miles from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    When flying to St. Louis, you'll arrive at Lambert-St Louis Airport (STL). The airport is also known as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Wednesday where round-trip tickets can be as cheap as $273. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $526 on average.

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

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally at night, when round-trip flights cost $1,112 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,719.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 1,529 direct flights from within South Korea to St. Louis. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Top airlines flying from South Korea to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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
8.7Crew
8.1Food
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 to St. Louis

Information on the airport you'll fly into in St. Louis

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.