Cheap Flights from Seoul to St Louis

Compare Seoul to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Seoul to St Louis

Looking for a cheap last-minute deal or the best return flight from Seoul to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seoul to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to St Louis flights are currently cheapest in February.

Seoul to St Louis: Alternative routes

Compare routes from Seoul to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Seoul to St Louis: Flight information

The things to know before you go.
Cheapest flight foundRs141,265
Cheapest month to flyFebruary

Finding cheap flights from Seoul to St Louis: Frequently asked questions

The best price we found for a return flight from Seoul to St Louis is Rs243,254. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seoul to St Louis. But we found flights with one stop from Rs243,254.
As of February 2026, there are no flights flying from Seoul to St Louis.
The cheapest month to fly from Seoul to St Louis is usually February.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to St Louis Airport on Tuesday, 24 February 2026.
No airlines currently offer direct flights between Seoul and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to St Louis is Delta .

Travelling from Seoul to Lambert-St. Louis International Airport (STL): What you need to know

  • There are a couple of airports you can start your journey from in Seoul. Check out your options departing from Incheon International Airport (ICN) or Gimpo International Airport (GMP) when organising your flight from Seoul to Lambert-St. Louis International Airport (STL).

  • Lambert-St. Louis International Airport is located in St Louis. The city is in the UTC-5 timezone and is 14 hours behind Seoul.

  • Your flight from Seoul to STL won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • In high season, allow for longer queues and show up earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international trips.

Airports in Seoul

Incheon International Airport (ICN)

  • A stopover is the perfect opportunity to break up your journey and possibly even explore another city. When browsing cheap flights from Seoul to STL departing from Incheon International Airport (ICN), deselect the 'Direct flights only' box to find out where you can stop along the way. Some popular options include:

    • O'Hare International Airport (ORD)

    • Seattle-Tacoma International Airport (SEA)

    • San Francisco International Airport (SFO)

  • From central Seoul, ICN is around 48 kilometres away. Use navigation apps or visit the official airport website to find the best way to reach the terminal.

  • In search of a comfortable hotel near Incheon International Airport? If you're catching an early flight from Seoul to Lambert-St. Louis International Airport, these accommodation options will have you sleeping moments from your departure gate:

  • 54.5% of flights taking off from Incheon International Airport make it to their destination on schedule.

Gimpo International Airport (GMP)

  • The distance from Seoul's city centre to GMP is roughly 16 kilometres. Consider the available transport options and possible delays when working out the best way to get to the airport.

  • Get a head start on your holiday with an additional night away from home. Before catching your Seoul to STL flight, kick back in one of these hotels near Gimpo International Airport:

  • 75.94% of flights departing Gimpo International Airport stick to their scheduled arrival time.

About Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • Lambert-St. Louis International Airport to central St Louis is about 16 kilometres. If you're getting a cab or renting a car, do some research to make your trip as smooth as possible. Journey times can vary depending on the time of day and traffic conditions.

  • It'll take around 35 minutes if you're using public transport.

How to find the cheapest flights from Seoul to Lambert-St. Louis International Airport (STL)

  • Rs141,265 is the lowest price for a one-way ticket from Seoul to Lambert-St. Louis International Airport. Return flights start from Rs243,254. These prices may change based on demand.

  • Booking in advance is often the key to scoring a cheap flight from Seoul to STL. Prices tend to rise as demand increases, so the closer you get to departure, the more you'll likely pay.

  • The 'Whole month' search tool will show you the cheapest Seoul to Lambert-St. Louis International Airport tickets across the month. It's a great way to find a bargain if your dates aren't set in stone.

  • There's no need to check every day to find out if prices have dropped when you set up a Price Alert. We'll notify you the moment a new deal shows up on flight tickets from Seoul to STL.

  • Uncover a great deal on a flight from Seoul to Lambert-St. Louis International Airport with the help of the filters. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Seoul to Lambert-St. Louis International Airport (STL)

  • April is the quietest month for flights from Seoul to Lambert-St. Louis International Airport (STL), while July is the busiest. Work out the best time to visit St Louis based on whether you like a laid-back vibe or a more bustling atmosphere.

  • The warmest month in St Louis is July, with temperatures ranging between 17ºC and 33ºC. Lock in your Seoul to STL flight ticket then if you enjoy this type of weather.

  • January has temperatures of between -8ºC and 7ºC. Look for cheap tickets from Seoul to Lambert-St. Louis International Airport around that time if you like cooler conditions.

More about St Louis

Explore more of the United States

  • St Louis is always a good idea, but there are so many other corners of the United States just waiting to be discovered. Around 257 kilometres east of St Louis, a visit to Evansville will keep you on the go. Start with leading attractions like Mesker Park Zoo, Riverfront Park and Evansville Zoological Society.

  • Around 177 kilometres west of St Louis, Columbia is another essential stop in the United States. Experience the best of this destination with a visit to Sentinel Park, Museum of Art and Archaeology and Bur Oak Brewing Company.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.