$512 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 4/18. 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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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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from South Korea to St. Louis.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:45 pm - 8:44 pmICN-STL
22h 59m2 stops
4:30 pm - 3:15 pmSTL-ICN
32h 45m2 stops
$840United Airlines
Find Deal
Mon, Mar 3 - Sun, Mar 9
6:00 pm - 6:56 pmICN-STL
15h 56m1 stop
7:00 am - 3:15 pmSTL-ICN
18h 15m1 stop
$842United Airlines
Find Deal
Wed, Mar 5 - Wed, Mar 19
12:45 pm - 6:56 pmICN-STL
21h 11m1 stop
7:00 am - 3:15 pmSTL-ICN
18h 15m1 stop
$916United Airlines
Find Deal
Mon, Mar 3 - Sun, Mar 9
6:00 pm - 12:20 pmICN-STL
32h 20m2 stops
1:30 pm - 4:05 pmSTL-ICN
36h 35m2 stops
$936Air Canada
Find Deal
Fri, Jul 18 - Mon, Jul 28
5:45 pm - 2:49 pmICN-STL
35h 04m2 stops
2:30 pm - 4:05 pmSTL-ICN
35h 35m2 stops
$947Air Canada
Find Deal
Tue, Apr 22 - Tue, May 20
7:20 pm - 11:16 pmGMP-STL
41h 56m2 stops
7:35 am - 9:50 pmSTL-GMP
24h 15m2 stops
$1,214Japan Airlines
Find Deal
Sun, Apr 6 - Sun, Apr 13
6:40 pm - 9:48 pmICN-STL
17h 08m1 stop
6:45 am - 4:25 pmSTL-ICN
19h 40m1 stop
$1,365Korean Air
Find Deal
Sat, May 3 - Sat, May 10
8:45 am - 11:30 pmPUS-STL
28h 45m2 stops
5:00 pm - 7:35 pmSTL-PUS
36h 35m2 stops
$1,424Delta
Find Deal
Sat, Apr 5 - Sat, Apr 12
7:30 pm - 11:03 pmICN-STL
17h 33m1 stop
6:00 am - 3:30 pmSTL-ICN
19h 30m1 stop
$1,483Korean Air
Find Deal
Sat, Mar 22 - Thu, Mar 27
7:55 am - 10:57 pmGMP-STL
29h 02m2 stops
7:13 am - 10:55 amSTL-GMP
36h 42m2 stops
$1,531Japan Airlines
Find Deal
Mon, Aug 18 - Sat, Dec 13

Flights to St. Louis - Travel Insights & Trends

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 $248. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $566 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

November

High season

July

Cheapest flight

$512
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 34% 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 2,245 direct flights from within South Korea to St. Louis. The most common day for departures is Friday, with 15% of flights taking off on this day.

See more FAQs

Top tips for finding cheap flights to St. Louis

  • High season is considered to be January, February and December. The cheapest month to fly from South Korea is January.
  • 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 1039 reviews
8.7Crew
8.1Food
8.2Comfort
8.5Boarding
8.2Entertainment
Airline reviews

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 😆

10.0 ExcellentDaniel, Feb 2025ICN - DFW
Read more Korean Air reviews

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.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

They changed aircrafts and they moved my seats that were already prepaid. I did not get the seats I paid for, so I got expensive seats that I didn't want

The flight was at least 3 hours late with not much of an explanation other than connecting flight was late

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Everything was ok!! Just bags came up a little be late.

Tasty snacks. On-time departure and early arrival. Luggage arrived quickly at the carrousel. The only negative was a man behind us that was heavily inebriated. He was served 3 double drinks during the flight. There was no telling how much he had before the flight. He was so out of it that he spilled a drink and broke the heavy liquor glass on the floor. I don't believe he should have been served so much alcohol on a two-hour flight.

Kind staff. Snacks are small but that’s the new normal.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

The crew was very kind and always smiling. The seats were great and I was very comfortable during the flight. The only thing I didn't like was that the lavatories got really dirty at some point during the flight. Other than that my experience was great

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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