Cheap flights from St. Louis (STL) to Seoul (SEL)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
St. Louis (STL) to Seoul (SEL)

All the information you need to plan the best STL to SEL flight in 2021: compare St. Louis to Seoul flight prices with the expected peak season, weather and rainfall in Seoul.
STL - SEL
Price
$902 - $1,587
SEL
Temperature
35.6 - 77 °F
SEL
Precipitation
1.1 - 10 inches

Popular in

December

High demand for flights, 30% potential price rise

Cheapest in

October

Best time to find cheap flights, 19% potential price drop

Round-trip from

$902

From Lambert-St Louis to Seoul (SEL)

One-way from

$709

One-way flight from Lambert-St Louis to Seoul (SEL)

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St. Louis to Seoul?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 44% when planning your travel around this day of the week.

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

Our data shows that October tends to be the cheapest month to fly to Seoul from St. Louis. Users have commonly found prices around $1,116 for the month, but tickets can be as low as $842. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from St. Louis to Seoul (STL - SEL)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% on flights from St. Louis to Seoul by exploring options for tickets in the morning.

Cheap flights from St. Louis to Seoul in December, January 2022

The best prices found for STL to SEL flights for December, January
10 Jan - 24 Jan
$1,028pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
   
2 STOPS
STL
Lambert-St Louis
10 Jan - 24 Jan
$1,031pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
   
2 STOPS
STL
Lambert-St Louis
10 Jan - 24 Jan
$1,035pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Seoul 2022 flight deals

Cheap flights to Seoul from St. Louis found for this year
3 Dec - 5 Dec
$1,096pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
4 Dec - 11 Dec
$1,099pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
   
2 STOPS
STL
Lambert-St Louis
4 Dec - 11 Dec
$1,107pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
ICN
Incheon Intl
ICN
Incheon Intl
American Airlines
   
2 STOPS
STL
Lambert-St Louis

Last minute flights from St. Louis to Seoul

Late deals on round-trip flights to Seoul from St. Louis, departing today and this week
12 Dec - 11 Jan
$1,183pp
STL
Lambert-St Louis
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
   
2 STOPS
STL
Lambert-St Louis
12 Dec - 11 Jan
$1,190pp
STL
Lambert-St Louis
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
   
2 STOPS
STL
Lambert-St Louis
12 Dec - 11 Jan
$1,198pp
STL
Lambert-St Louis
United Airlines
   
2 STOPS
ICN
Incheon Intl
ICN
Incheon Intl
United Airlines
   
2 STOPS
STL
Lambert-St Louis

One-way flights to All airports from St. Louis

The cheapest one-way flights from St. Louis to Seoul
3:56 am - 6:00 pm
Japan Airlines
2 Stops
24h 04m
STL - GMP
Japan Airlines
$709
KAYAK
1:25 am - 11:30 am
Delta
1 Stop
19h 05m
STL - ICN
Delta
$744
Delta
2:44 pm - 11:30 am
Multiple Airlines
3 Stops
29h 46m
STL - ICN
Multiple Airlines
$809
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Seoul</span> flights.

Flight FAQs

From St. Louis to Seoul

Which airlines flying from Lambert-St Louis to Seoul have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Seoul have new flexible policies in place due to COVID-19. Delta, Air Canada, and Korean Air are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Can I find flights from St. Louis to Seoul for under $1,100 on Cheapflights?

Yes, there are multiple flights from St. Louis to Seoul for under $1,100. The cheapest flight booked recently is on Korean Air for just $1,022, but on average you can expect to pay $1,060.

Are there last-minute flights available from St. Louis to Seoul for under $1,200?

There are currently 20+ open flights from St. Louis to Seoul within the next 7 days for less than $1,200.

What are the cheapest airlines flying from St. Louis to Seoul round-trip?

Korean Air, at $1,022, was found to be the cheapest airline from St. Louis to Seoul.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 8% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from St. Louis to Seoul one-way?

To fly one-way, consider booking your trip with Japan Airlines, which is currently one of the cheapest options available, starting at $709. Korean Air flights start at $735 while deals on American Airlines start at $743 one-way.

What are the most popular airlines that fly from St. Louis to Seoul?

Before booking your flight from St. Louis to Seoul check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

What are the cheapest flights from St. Louis to Seoul?

While on average a flight from St. Louis to Seoul is generally $988, our data shows the cheapest flight currently is $617. When looking at the most popular route, (Lambert-St Louis - Incheon Intl), you can expect to pay $1,142 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Seoul, South Korea

Do I need a COVID test to fly to Seoul from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Seoul

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Seoul.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Seoul.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Seoul.

Documents
K-ETA - K-ETA is an electronic travel authorization that visa-free foreign visitors need to obtain before entering the Republic of Korea.


Do I need a test to fly back to St. Louis from Seoul?

Returning to Lambert-St Louis from Seoul

COVID-19 testing requirements
Visitors from Seoul must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Seoul are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Seoul, South Korea

Alternative routes for St. Louis to Seoul

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seoul

Things to know before you go - useful duration and weather info for your trip from St. Louis to Seoul.
Today's exchange rate
$1 = 1,183원
Average temperature for December in Seoul
41.0 °F
Avg rainfall for December in Seoul
0.8 ″

Airports servicing St. Louis

Airports servicing Seoul

Seoul Gimpo Intl (GMP)

Top 5 airlines flying from Lambert-St Louis to Seoul All airports

The chart below displays the airlines Cheapflights users traveling from St. Louis to Seoul choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Air Canada
$810 $1,120 No cancel fee 67%
American Airlines
$821 $1,046 No cancel fee 71%
United Airlines
$825 $1,007 No cancel fee 69%
Korean Air
$887 $1,175 No cancel fee 81%
Delta
$902 $1,014 No cancel fee N/A
Home Asia South Korea Seoul Cheap flights from St. Louis to Seoul