ICN

$340 Find Cheap Flights from Illinois to Seoul Incheon Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Incheon Intl departing on 3/1. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$646
Typical prices: $799-$1,307
Delta
Fri 1/16Fri 1/23
STL - ICN • 1 stop
Cheapest non-stop
$1,543
Typical prices: $1,557-$1,817
Korean Air
Thu 1/15Wed 1/28
ORD - ICN • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Incheon Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Incheon Intl 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Incheon Intl

Fri, Jan 16 - Fri, Jan 23
Delta Logo
6:35 am - 4:50 pm
STL
-
ICN
19h 15m1 stop
Delta Logo
7:40 pm - 9:38 pm
ICN
-
STL
16h 58m1 stop
$646Delta
Fri, Jan 16 - Fri, Jan 23
Delta Logo
6:55 pm - 3:30 pm
STL
-
ICN
29h 35m2 stops
Delta Logo
7:30 pm - 11:37 pm
ICN
-
STL
19h 07m2 stops
$650Delta
Sat, Mar 28 - Wed, Apr 8
Multiple Airlines Logo
2:55 pm - 6:35 pm
STL
-
ICN
37h 40m1 stop
Multiple Airlines Logo
8:35 pm - 11:55 pm
ICN
-
STL
17h 20m1 stop
$651Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
6:19 pm - 6:35 pm
STL
-
ICN
33h 16m1 stop
Multiple Airlines Logo
8:35 pm - 1:54 pm
ICN
-
STL
32h 19m1 stop
$656Multiple Airlines
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
5:00 pm - 5:40 am
STL
-
ICN
21h 40m1 stop
United Airlines Logo
12:45 pm - 3:37 pm
ICN
-
STL
17h 52m1 stop
$746United Airlines
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
9:57 am - 5:40 am
STL
-
ICN
28h 43m2 stops
United Airlines Logo
12:45 pm - 3:37 pm
ICN
-
STL
17h 52m1 stop
$750United Airlines
Mon, Jan 19 - Wed, Jan 28
Cathay Pacific Logo
2:35 pm - 12:45 pm
ORD
-
ICN
31h 10m1 stop
Cathay Pacific Logo
7:35 pm - 12:55 pm
ICN
-
ORD
32h 20m1 stop
$845Cathay Pacific
Mon, Jan 19 - Wed, Jan 28
Cathay Pacific Logo
2:35 pm - 1:55 pm
ORD
-
ICN
32h 20m1 stop
Cathay Pacific Logo
10:00 am - 12:55 pm
ICN
-
ORD
41h 55m1 stop
$856Cathay Pacific
Sat, Jan 3 - Sun, Feb 15
American Airlines Logo
5:43 pm - 4:45 pm
MLI
-
ICN
32h 02m2 stops
American Airlines Logo
7:15 pm - 10:59 pm
ICN
-
MLI
18h 44m1 stop
$1,395American Airlines
Sat, Jan 3 - Sun, Feb 15
American Airlines Logo
3:21 pm - 4:45 pm
MLI
-
ICN
34h 24m1 stop
American Airlines Logo
7:15 pm - 10:59 pm
ICN
-
MLI
18h 44m1 stop
$1,398American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$340
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Chicago O'Hare Airport to Seoul Incheon Airport

FAQs for booking Illinois to Seoul Incheon Airport flights

  • How does KAYAK find such low prices on flights from Illinois to Seoul Incheon Airport?

    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 Illinois to Seoul Incheon Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Seoul Incheon Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport from Illinois 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 Illinois to Seoul Incheon Airport?

    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 Incheon Airport with an airline and back to Illinois with another airline.

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

    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 Incheon Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Incheon Intl?

Book flights to Incheon Intl if you plan to visit one of these locations
Suwon
Seongnam
Anyang

Everything you need to know for your flight to Incheon Intl

Information on your arrival and departure airports

Seoul Incheon Airport (ICN)