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Find cheap flights from St. Louis to South Korea from $779

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 South Korea departing on 7/10. 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
Tue 7/2
Tue 7/9

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Best South Korea Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seoul
Seoul2 stops$1,241
Jeju City
Jeju City3 stops$7,150

Good to know

Low season

January

High season

April

Cheapest flight

$779
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from St. Louis to Incheon

FAQs - booking South Korea flights

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

    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 South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to South Korea 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 South Korea?

    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 South Korea 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 South Korea?

    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 South Korea 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 tips for finding cheap flights to South Korea

  • Morning departure is around 21% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from St. Louis to South Korea

 
Need help choosing which airline to fly with from St. Louis to South Korea? 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 1142 reviews
8.3Comfort
8.2Entertainment
8.8Crew
8.1Food
8.6Boarding
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

Overall mediocre-good, with the service on the flight operated by American Airlines being subpar and not the kind and standard you’d get from a Japan Airlines crew. The majority of the stewards on AA were not as gentle and friendly as those from Japan Airlines. Japan Airlines were more attentive to detail and your flight experience. AA was more interested in completing their tasks.

I was feeling very comfortable throughout the flight. I got more leg room than I expected from a Y class seat. But the food was a little disappointing.

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 .

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.

Nothing, terrible travel experience due to weather and maintenance delays and was left stranded in Austin.

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

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.

My seat was moved multiple times. I picked out the perfect seats beforehand. I even paid extra money for them. However, I was moved to a middle seat without warning at the last minute. It was like my worst nightmare. But other than that, the actual flight was good. Everything was on time or even early and the flight was smooth.

A220 plane had 5 seats across which is great for couples who can snag the A&C seats. Seat itself is borderline comfortable but still tough on a 5+ hour flight. Overhead bins are small so if you're not in at least boarding group 5, you could be in trouble. No included food service. Non-alcoholic drinks are free but even the most basic snacks are for a charge. Price was reasonable for the only direct SEA-YUL flight. Boarding is efficient even managing passport checks. Worth flying for the direct flight.

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

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

Book cheap flights from St. Louis to South Korea

Recent round-trip flight deals

8/25Sun
2 stops
39h 55mSTL-GMP
9/12Thu
2 stops
45h 00mGMP-STL
$1,241
8/27Tue
2 stopsAir Canada
38h 05mSTL-ICN
9/10Tue
2 stopsAir Canada
35h 20mICN-STL
$1,244
8/20Tue
1 stopAmerican Airlines
17h 11mSTL-ICN
9/3Tue
2 stopsAmerican Airlines
31h 43mICN-STL
$1,272
8/27Tue
1 stopAmerican Airlines
17h 11mSTL-ICN
9/10Tue
1 stopAmerican Airlines
36h 02mICN-STL
$1,275
8/18Sun
1 stopDelta
22h 41mSTL-ICN
9/5Thu
1 stopDelta
17h 48mICN-STL
$1,368
8/18Sun
1 stopDelta
21h 04mSTL-ICN
9/5Thu
2 stopsDelta
19h 39mICN-STL
$1,372
8/21Wed
2 stopsJapan Airlines
21h 00mSTL-GMP
9/4Wed
2 stopsJapan Airlines
21h 42mGMP-STL
$1,548
9/5Thu
2 stopsJapan Airlines
24h 30mSTL-GMP
9/12Thu
2 stopsJapan Airlines
24h 55mGMP-STL
$1,593
7/20Sat
2 stopsUnited Airlines
31h 57mSTL-ICN
8/11Sun
2 stopsUnited Airlines
24h 47mICN-STL
$1,662
7/21Sun
2 stopsUnited Airlines
20h 50mSTL-ICN
8/6Tue
2 stopsUnited Airlines
19h 27mICN-STL
$1,944

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Recent one-way flight deals

7/10Wed
1 stopAmerican Airlines
18h 15mSTL-ICN
$779
7/12Fri
2 stopsAmerican Airlines
31h 29mSTL-ICN
$829
6/10Mon
2 stopsTurkish Airlines
34h 15mSTL-ICN
$923
6/27Thu
3 stops
37h 28mSTL-ICN
$1,031
6/27Thu
2 stopsTurkish Airlines
43h 35mSTL-ICN
$1,085
8/3Sat
3 stops
39h 20mSTL-CJU
$1,114
6/27Thu
1 stopAir Canada
40h 30mSTL-ICN
$1,199
6/10Mon
2 stopsJapan Airlines
23h 59mSTL-GMP
$1,267
6/8Sat
1 stopAir Canada
35h 25mSTL-ICN
$1,394
6/7Fri
1 stopKorean Air
19h 24mSTL-ICN
$1,949

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Last minute flights from St. Louis to South Korea

Last minute flight, train and bus deals

6/6Thu
multi-stopJapan Airlines
45h 31mSTL-GMP
7/1Mon
multi-stopJapan Airlines
29h 03mGMP-STL
$2,751
6/6Thu
multi-stopKorean Air
19h 09mSTL-ICN
7/1Mon
multi-stopKorean Air
19h 02mICN-STL
$2,893
6/6Thu
multi-stop
45h 31mSTL-GMP
7/1Mon
multi-stop
45h 05mGMP-STL
$3,020
6/5Wed
multi-stopKorean Air
25h 10mSTL-CJU
6/12Wed
multi-stopKorean Air
24h 25mCJU-STL
$3,188
6/6Thu
multi-stopQatar Airways
40h 30mSTL-ICN
6/30Sun
multi-stopQatar Airways
36h 39mICN-STL
$3,401
6/6Thu
multi-stop
33h 38mSTL-GMP
7/1Mon
multi-stop
32h 28mGMP-STL
$3,885
6/6Thu
multi-stopLufthansa
26h 24mSTL-ICN
7/1Mon
multi-stopLufthansa
47h 12mICN-STL
$3,993
6/5Wed
multi-stop
33h 45mSTL-CJU
6/12Wed
multi-stop
31h 16mCJU-STL
$4,444
6/5Wed
multi-stop
38h 04mSTL-CJU
6/12Wed
multi-stop
36h 23mCJU-STL
$5,735

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St. Louis - South Korea Flights

Departure:

St. Louis (STL)United States

Return flight deals:

South Korea - St. Louis

Cabin classes: