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STL - SEL

$600 Find cheap flights from St. Louis to Seoul

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Seoul departing on 9/6. 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
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Seoul, 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 St. Louis to Seoul, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Seoul (STL-SEL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Seoul 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 and deals for you by selecting your travel dates.
Choose your dates
4:05 pm - 10:00 pmSTL-GMP
39h 55m2 stops
8:20 am - 3:20 pmGMP-STL
45h 00m2 stops
$1,265
Find Deal
Sun, Aug 25 - Thu, Sep 12
8:00 am - 3:15 pmSTL-ICN
17h 15m1 stop
6:35 pm - 10:36 pmICN-STL
19h 01m1 stop
$1,268American Airlines
Find Deal
Thu, Oct 3 - Wed, Nov 20
12:00 pm - 4:05 pmSTL-ICN
38h 05m2 stops
6:00 pm - 3:20 pmICN-STL
35h 20m2 stops
$1,284Air Canada
Find Deal
Tue, Aug 27 - Tue, Sep 10
12:00 pm - 4:05 pmSTL-ICN
38h 05m2 stops
6:00 pm - 3:20 pmICN-STL
35h 20m2 stops
$1,335Air Canada
Find Deal
Tue, Aug 27 - Fri, Sep 13
6:06 am - 3:20 pmSTL-ICN
19h 14m1 stop
4:30 pm - 11:35 pmICN-STL
21h 05m1 stop
$1,368Delta
Find Deal
Tue, Aug 27 - Tue, Sep 10
6:00 am - 2:20 pmSTL-ICN
18h 20m1 stop
7:20 pm - 10:20 amICN-STL
29h 00m2 stops
$1,372Delta
Find Deal
Tue, Aug 27 - Mon, Sep 9
7:00 am - 10:00 pmSTL-GMP
25h 00m2 stops
12:05 pm - 11:00 pmGMP-STL
24h 55m2 stops
$1,488Japan Airlines
Find Deal
Tue, Aug 27 - Tue, Sep 10
8:04 am - 6:00 pmSTL-GMP
19h 56m2 stops
7:55 am - 12:57 pmGMP-STL
19h 02m2 stops
$1,749Japan Airlines
Find Deal
Sun, Aug 25 - Sat, Sep 7
6:30 am - 5:20 pmSTL-ICN
20h 50m1 stop
7:40 pm - 10:07 pmICN-STL
16h 27m1 stop
$2,283Korean Air
Find Deal
Thu, Jul 4 - Mon, Jul 15
6:06 am - 3:20 pmSTL-ICN
19h 14m1 stop
7:40 pm - 11:20 pmICN-STL
17h 40m1 stop
$2,374Korean Air
Find Deal
Thu, Jun 27 - Thu, Jul 4

Flights from St. Louis to Seoul - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Seoul 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 St. Louis to Seoul?

The average price of all flights from St. Louis to Seoul clicked on KAYAK for each day over the last 12 months.
For St. Louis to Seoul, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul back to St. Louis, the best deals are generally found on Monday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Seoul, 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 St. Louis to Seoul is February, where tickets cost $1,537 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $2,144 and $2,093 respectively.

Which airlines provide the cheapest flights from St. Louis to Seoul?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Seoul found by KAYAK users in the last 72 hours was for $1,268 on American Airlines, followed by Air Canada ($1,284). One-way flight deals have also been found from as low as $709 on Cathay Pacific and from $778 on American Airlines.

Good to know

Low season

January

High season

June

Cheapest flight

$600
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from St. Louis to Incheon

When to book flights from St. Louis to Seoul

Are your dates flexible? Find out the best times to travel from St. Louis to Seoul 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 St. Louis to Seoul

  • What is the cheapest flight from St. Louis to Seoul?

    In the last 3 days, the lowest price for a flight from St. Louis to Seoul was $600 for a one-way ticket and $1,265 for a round-trip.

  • Do I need a passport to fly between St. Louis and Seoul?

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Seoul.

  • Which airports will I be using when flying from St. Louis to Seoul?

    On your way to Seoul, you’ll fly out from Lambert-St Louis. You’ll be landing in one of Seoul’s 2 airports: Seoul Gimpo Intl or Incheon Intl.

  • Which aircraft models fly most regularly from St. Louis to Seoul?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Seoul?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Seoul, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Seoul, Korean Air or Japan Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Seoul are Korean Air and Japan Airlines. With an average price for the route of $1,928 and an overall rating of 8.5, Korean Air is the most popular choice. Japan Airlines is also a great choice for the route, with an average price of $1,713 and an overall rating of 8.3.

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

    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 St. Louis to Seoul.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from 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 from St. Louis to Seoul?

    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 Seoul with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Seoul?

    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 Seoul from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from St. Louis to Seoul

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Seoul. 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 St. Louis to Seoul? 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.
8.5
Korean AirOverall score based on 1150 reviews
8.3Comfort
8.2Entertainment
8.1Food
8.6Boarding
8.8Crew
Airline reviews

Overall, very uneventful and pleasant experience. Most importantly, no delays.

10.0 ExcellentAnonymous, May 2024SGN - ICN
Read more about Korean Air reviews

Overall, very uneventful and pleasant experience. Most importantly, no delays.

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

We were seated at the back and that was very uncomfortable for me with the turbulence we experienced on our way to Chicago.

I enjoyed flying on Korean Air. The service was great and the food was yummy. They served white fish.

I enjoyed flying on Korean Air. The service was great and the food was yummy, especially the bibimbap and cold spicy noodles. The only thing that bummed me out on this red-eye flight was that my seat did not properly recline so I was not able to sleep.

On time and flight crew are always so happy to help and always smiling unlike other airlines.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

Stewardess are nice. Food could have been better and should have a better dessert. They do not offer scotch or beer. You have to ask for it. I also was not happy that you do not serve ginger ale and or cranberry juice. This is my first time that an international flight do not have this. I go home overseas every year and when I travel through ANA, Delta, Qatar, JAL, Asiana Air, United Air. they all serve this two very famous drink. You do not have a great snack tray.

You did not put me on a Korean Air flight! so I do not have nothing to say

Very pleasant, look forward to flying with JAL again if the price is right.

All of the JAL flights in this itinerary were great. However the last leg of my flight from LAX to SFO was through Japan Air’s partner, AA which wqsn’t up to par. We were informed only minutes before boarding time of a delay despite the airlines knowing about the delay far earlier (the aircraft we would be taking arriving arrived and disembarked close to our boarding time, for all to see but AA still kept the original boarding time posted until last minute). Furthermore, once we boarded the taxi/wait time was also extended, with the pilot blaming “construction at SFO” for the delay, rather than taking accountability for the the plane’s late arrival coming into LAX. We took off approximately an hour later than scheduled. It’s for these reasons I adamantly avoid American Airlines when possible. Again, JAL was stellar.

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

First of all I had dozed off. And when I woke up, my food was on a tray without telling me the food was there or asking me if I wanted something to drink. They never came back to ask me if I wanted anything to drink and I tried to stop them several times. I personally have a problem swallowing food without something to drink with it. so therefore I could not eat., second thing for the entertainment. There was no place to plug the headset in because the tip had been broken off into the monitor to where you couldn’t even watch a movie or hear any music that was annoying .

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

I didn’t like the check in process I had to check in at the counter took too much time . Didn’t give the upgrade my seat .

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

The flight was excellent the problem was that my luggage was damaged (zipper pulls ripped out) and it is difficult to contact the number to claim the damage while in another country and going back to the airport is not an option and no matter what I tried I got the same response to just call the number that is not possible for me to call in the first place. So very disappointed that I can’t claim such damage and that now I have to take part of my trip looking for a new luggage.

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

Flight was on time early arrival better entertainment good staff.everything was excellent

Delayed leaving. On arrival we were taken to the airstrip and had to get off onto an over crowed bus, not all that passengers fit. Drove around the airport for 20 + minutes. Taken off the bus told to go upstairs 3 flights then all the passengers had to walk a mile or more , those of us old there was no one to direct us to were to go. I asked several people with no answers. Once I got to baggage claim my bags were not on the right bag claim. Once again asked for help and finally someone found my bags on a different carasel. Very frustrating.

Excellent host on board. Not so friendly check-in staff. Older plane with no food or entertainment due to short flight. Friendly captain and crew.

I don’t think there was entertainment? No mention of it. It was a good flight. Only complaint was my seat cushion was not attached and kept slipping.

Book cheap flights from St. Louis to Seoul

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Seoul found on KAYAK in the last 72 hours.
9/6Fri
3 stops
57h 18mSTL-ICN
$600
9/10Tue
3 stops
44h 05mSTL-ICN
$641
9/10Tue
2 stopsCathay Pacific
36h 58mSTL-ICN
$709
9/6Fri
2 stopsCathay Pacific
43h 38mSTL-ICN
$765
7/2Tue
2 stopsAmerican Airlines
31h 37mSTL-ICN
$778
7/2Tue
1 stopAmerican Airlines
18h 15mSTL-ICN
$779
7/2Tue
1 stopAmerican Airlines
31h 48mSTL-ICN
$793
9/10Tue
1 stopKorean Air
20h 50mSTL-ICN
$935
9/6Fri
1 stopKorean Air
18h 25mSTL-ICN
$977
6/2Sun
2 stopsJapan Airlines
37h 58mSTL-GMP
$1,293

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Last minute flights from St. Louis to Seoul

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Seoul that are departing in the next 10 days.
6/3Mon
multi-stopUnited Airlines
29h 25mSTL-ICN
6/5Wed
multi-stopUnited Airlines
19h 25mICN-STL
$2,244
5/31Fri
multi-stopUnited Airlines
25h 10mSTL-ICN
6/6Thu
multi-stopUnited Airlines
18h 59mICN-STL
$2,277
6/3Mon
multi-stop
20h 50mSTL-ICN
6/5Wed
multi-stop
27h 17mICN-STL
$2,309
5/31Fri
multi-stop
18h 25mSTL-ICN
6/6Thu
multi-stop
28h 42mICN-STL
$2,321
6/3Mon
multi-stopKorean Air
29h 15mSTL-ICN
6/5Wed
multi-stopKorean Air
16h 12mICN-STL
$2,370
5/31Fri
multi-stop
19h 09mSTL-ICN
6/6Thu
multi-stop
16h 12mICN-STL
$2,533
6/3Mon
multi-stop
32h 55mSTL-ICN
6/5Wed
multi-stop
22h 50mICN-STL
$3,092
5/31Fri
multi-stopANA
29h 55mSTL-GMP
6/6Thu
multi-stopANA
32h 19mGMP-STL
$3,139

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St. Louis - Seoul Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Seoul - St. Louis

Cabin classes: