ICN - STL

$592 Find Cheap Flights from Incheon to St. Louis - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$1,219
Typical prices: $695-$1,111
Multiple Airlines
Sun 10/28Wed 10/31
ICN - STL • 2 stops
Cheapest one-way
$592
Typical prices: $790-$1,148
Multiple Airlines
Mon 11/26
ICN - STL • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Incheon Intl Airport and St. Louis. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 15% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $937 (round-trip)
Chicago O'Hare Intl (ORD)
Shortest trip • 17h 20m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Incheon to St. Louis (ICN-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Incheon to St. Louis

Wed, Oct 28 - Sat, Oct 31
Multiple Airlines Logo
1:50 pm - 9:29 amICN  Incheon Intl-STL Lambert-St Louis
33h 39m2 stops Hong Kong Intl Boston Logan Intl
Multiple Airlines Logo
11:31 am - 1:50 pmSTL  Lambert-St Louis-ICN Incheon Intl
36h 19m2 stops Chicago O'Hare Intl Hong Kong Intl
$1,219Multiple Airlines
Mon, Nov 16 - Mon, Nov 30
American Airlines Logo
6:50 pm - 11:59 pmICN  Incheon Intl-STL Lambert-St Louis
20h 09m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
8:12 pm - 4:45 pmSTL  Lambert-St Louis-ICN Incheon Intl
29h 33m2 stops Chicago O'Hare Intl Dallas/Fort Worth
$1,315American Airlines
Tue, Jan 12 - Tue, Feb 16
American Airlines Logo
6:50 pm - 9:36 amICN  Incheon Intl-STL Lambert-St Louis
29h 46m2 stops Dallas/Fort Worth Charlotte Douglas
American Airlines Logo
10:20 am - 4:25 pmSTL  Lambert-St Louis-ICN Incheon Intl
39h 05m1 stop Dallas/Fort Worth
$1,321American Airlines
Tue, Dec 22 - Tue, Jan 12
Air Canada Logo
6:55 pm - 3:26 pmICN  Incheon Intl-STL Lambert-St Louis
35h 31m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
4:05 pm - 5:10 pmSTL  Lambert-St Louis-ICN Incheon Intl
34h 05m2 stops Toronto Pearson Intl Vancouver Intl
$1,333Air Canada
Tue, Oct 27 - Sat, Oct 31
Multiple Airlines Logo
1:55 am - 11:59 pmICN  Incheon Intl-STL Lambert-St Louis
36h 04m2 stops Hong Kong Intl Seattle/Tacoma Intl
Multiple Airlines Logo
6:02 am - 5:35 pmSTL  Lambert-St Louis-ICN Incheon Intl
21h 33m1 stop Seattle/Tacoma Intl
$1,340Multiple Airlines
Thu, Nov 5 - Mon, Nov 9
American Airlines Logo
6:50 pm - 6:16 pmICN  Incheon Intl-STL Lambert-St Louis
38h 26m1 stop Dallas/Fort Worth
American Airlines Logo
2:28 pm - 4:45 pmSTL  Lambert-St Louis-ICN Incheon Intl
35h 17m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$1,352American Airlines
Thu, Nov 5 - Mon, Nov 9
American Airlines Logo
6:50 pm - 6:16 pmICN  Incheon Intl-STL Lambert-St Louis
38h 26m1 stop Dallas/Fort Worth
American Airlines Logo
2:28 pm - 4:45 pmSTL  Lambert-St Louis-ICN Incheon Intl
35h 17m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$1,353American Airlines
Thu, Nov 5 - Mon, Nov 9
American Airlines Logo
6:50 pm - 6:16 pmICN  Incheon Intl-STL Lambert-St Louis
38h 26m1 stop Dallas/Fort Worth
American Airlines Logo
2:28 pm - 4:45 pmSTL  Lambert-St Louis-ICN Incheon Intl
35h 17m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$1,359American Airlines
Thu, Nov 5 - Mon, Nov 9
American Airlines Logo
6:50 pm - 6:16 pmICN  Incheon Intl-STL Lambert-St Louis
38h 26m1 stop Dallas/Fort Worth
American Airlines Logo
2:28 pm - 4:45 pmSTL  Lambert-St Louis-ICN Incheon Intl
35h 17m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$1,370American Airlines
Tue, Dec 22 - Tue, Dec 29
Air Canada Logo
6:55 pm - 3:26 pmICN  Incheon Intl-STL Lambert-St Louis
35h 31m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
4:05 pm - 5:10 pmSTL  Lambert-St Louis-ICN Incheon Intl
34h 05m2 stops Toronto Pearson Intl Vancouver Intl
$1,381Air Canada
Booking Insights

Price, demand and travel trends for Incheon Intl Airport to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Incheon Intl Airport to St. Louis?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Incheon Intl Airport to St. Louis. It’s 9% cheaper than the average day, while Saturday is the most expensive, with prices 93% higher.

Find deals

Key details for Incheon Intl Airport to St. Louis flights

Low season

August

Cheapest flight

$592
Beat the crowds with an average 75% drop in travelers.
The most popular month to fly with an average 91% increase in travelers.
One-way flight from Incheon Intl Airport to St. Louis

When to book flights from Incheon to St. Louis

Are your dates flexible? Find out the best times to travel from Incheon to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Incheon Intl Airport to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Incheon Intl Airport to St. Louis?

    Two cabin classes are available on flights from Incheon Intl Airport to St. Louis:

    • Economy Class
    • Premium Economy Class

  • How long is a flight from Incheon Intl Airport to St. Louis?

    A nonstop flight from Incheon Intl Airport to St. Louis takes 00m, covering 6,670 miles.

  • Do I need a passport to fly from Incheon Intl Airport to St. Louis?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Incheon Intl Airport to St. Louis flight?

    Round-trip flights from Incheon Intl Airport to St. Louis range from $695 to $1,111, with an average of $740 over the past 12 months. Anything below $695 counts as a good deal.

  • Have flight prices from Incheon Intl Airport to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,219 to $2,601. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from Incheon Intl Airport to St. Louis looking right now?

    One-way fares from Incheon Intl Airport to St. Louis are currently higher than usual. Average one-way flight prices are about $1,530, which is 61% above the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Incheon Intl Airport to St. Louis?

    Flights from Incheon Intl Airport to St. Louis usually depart from Incheon Intl (ICN) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Incheon Intl Airport to St. Louis pass through?

    One-stop flights from Incheon Intl Airport to St. Louis most commonly connect through:

    • Seattle/Tacoma Intl (SEA) - 58% of one-stop connections
    • Dallas/Fort Worth (DFW) - 32% of one-stop connections
    • Minneapolis St Paul (MSP) - 5% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Incheon Intl Airport to St. Louis?

    Yes. Flexible dates can save you up to 53% on flights from Incheon Intl Airport to St. Louis. Thursday is the cheapest departure day at $676 round-trip on average, while Saturday is the most expensive at $1,430, a difference of $754.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Incheon Intl Airport to St. Louis?

    Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 17h 20m, compared with 18h 50m via Atlanta Hartsfield-Jackson (ATL) and 19h 08m via Minneapolis St Paul (MSP).

  • What is the time difference between Incheon Intl Airport and St. Louis?

    St. Louis is 14 hours behind Incheon Intl Airport (Central Time vs Korean Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Incheon Intl Airport to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $676, about $754 less than Saturday fares (53% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Incheon Intl Airport to St. Louis trip for November. Fares historically average $630 round-trip in that month - typically $1,275 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

More options for your flight from Incheon to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Car rentals in St. Louis
Hotels in St. Louis
Vacations in St. Louis