$450 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 4/11. 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
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Cheap Flight Deals 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.
Choose your dates
Air Canada Logo
5:45 pm - 12:19 pmICN-STL
32h 34m2 stops
Air Canada Logo
1:30 pm - 4:05 pmSTL-ICN
36h 35m2 stops
$777Air Canada
Find Deal
Mon, May 12 - Fri, May 16
Air Canada Logo
5:45 pm - 12:36 pmICN-STL
32h 51m2 stops
Air Canada Logo
4:00 pm - 4:05 pmSTL-ICN
34h 05m2 stops
$784Air Canada
Find Deal
Sun, Jun 1 - Thu, Jul 3
Air Canada Logo
7:05 pm - 12:36 pmICN-STL
31h 31m1 stop
Air Canada Logo
1:30 pm - 4:05 pmSTL-ICN
36h 35m2 stops
$791Air Canada
Find Deal
Mon, May 12 - Fri, May 16
American Airlines Logo
5:25 pm - 10:27 pmICN-STL
19h 02m1 stop
American Airlines Logo
7:19 am - 3:30 pmSTL-ICN
18h 11m1 stop
$1,051American Airlines
Find Deal
Mon, Sep 15 - Tue, Oct 14
United Airlines Logo
4:50 pm - 12:46 pmICN-STL
33h 56m2 stops
United Airlines Logo
6:00 am - 4:20 amSTL-ICN
32h 20m1 stop
$1,161United Airlines
Find Deal
Wed, Jul 2 - Sun, Jul 13
United Airlines Logo
4:50 pm - 3:30 pmICN-STL
36h 40m2 stops
United Airlines Logo
6:00 am - 3:00 pmSTL-ICN
19h 00m1 stop
$1,175United Airlines
Find Deal
Sun, Jun 1 - Thu, Jul 3
Delta Logo
7:20 pm - 8:39 amICN-STL
27h 19m2 stops
Delta Logo
6:59 pm - 3:20 pmSTL-ICN
30h 21m1 stop
$1,345Delta
Find Deal
Wed, Jul 2 - Sun, Jul 13
Delta Logo
7:20 pm - 11:34 pmICN-STL
18h 14m2 stops
Delta Logo
11:15 am - 5:20 pmSTL-ICN
16h 05m1 stop
$1,387Delta
Find Deal
Fri, Apr 25 - Tue, Apr 29
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
$1,455Korean Air
Find Deal
Wed, Aug 27 - Wed, Sep 3
Korean Air Logo
10:15 am - 1:08 pmICN-STL
16h 53m1 stop
Korean Air Logo
4:43 pm - 2:10 pmSTL-ICN
31h 27m1 stop
$1,549Korean Air
Find Deal
Fri, Apr 11 - Fri, Apr 11

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.

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

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

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

The average price for all round-trip flights to St. Louis depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

Good to know

Low season

March

High season

July

Cheapest flight

$450
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 35% 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.

  • 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.

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

    Each week there are around 1,833 direct flights from within South Korea to St. Louis. The most common day for departures is Monday, with 18% of flights taking off on this day.

See more FAQs

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 1052 reviews
8.7Crew
8.2Entertainment
8.3Comfort
8.1Food
8.5Boarding
Airline reviews

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

10.0 ExcellentPaula, Mar 2025ICN - DPS
Read more Korean Air reviews

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...

I loved everything, I was just a little confused on my bag allowance. When I checked in it said I was allowed 2 check in bags, but when I got there they said I was only allowed 1 so I had to pay an additional 200 dollars! Other then that everything was great! I would love to use your Airlines again when I fly out to Manila again in late May, however I want to be able to have 2 bags included this time lol 😆

Need to have space for Cary on when traveler boarding any zone

everything was fine, would have liked better food but it was warm, great choices for movies

the water for tea could have been hot, entertainment was awful, lots of old movies and TV shows

The carry on baggage was collected before boarding without further information where the passengers can collect them . When the flight arrived at Tan son Nhat airport, it was very complicate to find the luggage

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

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

I love the free WiFi!! Crew was nice. Bathroom was decent. First time flying delta in a long time and I enjoyed it. Will definitely look into booking with Delta more but I think Delta is a little more expensive than the other airlines.

third trip overseas with delta recently where the TV did not work- not acceptable for a 8 hour flight! your food really has declined crew great and I am loyal to delta

Boarding in Amsterdam is always chaotic. KLM/ Delta has not streamlined or made it efficient as it was boarding in Detroit . The food was mediocre The crew was unfriendly and more focused on getting things done quickly rather than service with a smile .

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

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

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

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