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Find cheap flights from Illinois to South Korea from $531

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to South Korea departing on 8/26. 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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In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$531
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Chicago O'Hare Airport to Incheon

FAQs for booking flights from Illinois to South Korea

  • How does KAYAK find such low prices on flights from Illinois 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 Illinois to South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to South Korea 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 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 Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois 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 Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Illinois to South Korea

Recent round-trip flight deals

10/1Tue
1 stopCathay Pacific
30h 30mORD-ICN
10/21Mon
1 stopCathay Pacific
37h 15mICN-ORD
$953
10/15Tue
1 stopTurkish Airlines
31h 10mORD-ICN
11/8Fri
1 stopTurkish Airlines
38h 25mICN-ORD
$979
10/8Tue
1 stopEVA Air
28h 15mORD-ICN
10/30Wed
1 stopEVA Air
39h 00mICN-ORD
$1,084
9/9Mon
1 stopEVA Air
28h 45mORD-GMP
12/10Tue
1 stopEVA Air
39h 45mGMP-ORD
$1,084
7/23Tue
1 stop
26h 40mORD-ICN
8/26Mon
2 stops
33h 28mICN-ORD
$1,164
8/27Tue
1 stop
34h 20mORD-PUS
9/12Thu
2 stops
36h 25mPUS-ORD
$1,180
11/8Fri
1 stopLOT
42h 15mORD-ICN
11/16Sat
2 stopsLOT
69h 25mICN-ORD
$1,228
10/9Wed
1 stopLOT
42h 40mORD-ICN
10/31Thu
1 stopLOT
46h 25mICN-ORD
$1,234
8/27Tue
2 stopsAir Canada
38h 05mSTL-ICN
9/10Tue
2 stopsAir Canada
35h 20mICN-STL
$1,244
8/27Tue
1 stopAir Canada
35h 25mSTL-ICN
9/10Tue
2 stopsAir Canada
35h 20mICN-STL
$1,250

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Recent one-way flight deals

8/26Mon
2 stops
31h 20mORD-ICN
$531
7/30Tue
2 stops
46h 25mORD-ICN
$539
8/7Wed
1 stopTurkish Airlines
22h 15mORD-ICN
$577
8/26Mon
1 stopTurkish Airlines
22h 15mORD-ICN
$588
9/24Tue
1 stopEVA Air
28h 15mORD-ICN
$642
9/9Mon
1 stopEVA Air
28h 45mORD-GMP
$642
9/10Tue
1 stopCathay Pacific
30h 30mORD-ICN
$691
7/10Wed
1 stopAmerican Airlines
18h 15mSTL-ICN
$779
7/2Tue
1 stopAmerican Airlines
29h 28mSTL-ICN
$793
8/2Fri
1 stopCathay Pacific
37h 10mORD-ICN
$832

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Last minute flights from Illinois to South Korea

Last minute flight, train and bus deals

6/5Wed
multi-stopLOT
42h 40mORD-ICN
9/3Tue
multi-stopLOT
46h 20mICN-ORD
$1,643
6/4Tue
multi-stop
30h 48mORD-ICN
6/10Mon
multi-stop
30h 59mICN-ORD
$1,650
6/5Wed
multi-stop
35h 40mORD-ICN
6/12Wed
multi-stop
31h 34mICN-ORD
$1,662
6/3Mon
multi-stopEVA Air
28h 15mORD-ICN
6/11Tue
multi-stopEVA Air
39h 15mICN-ORD
$1,792
6/5Wed
multi-stopAir Canada
30h 08mORD-ICN
9/3Tue
multi-stopAir Canada
27h 56mICN-ORD
$1,854
6/4Tue
multi-stopEVA Air
33h 10mORD-ICN
6/11Tue
multi-stopEVA Air
39h 15mICN-ORD
$1,862
6/5Wed
multi-stopAir Canada
34h 25mORD-ICN
6/17Mon
multi-stopAir Canada
34h 21mICN-ORD
$1,882
6/5Wed
multi-stopTurkish Airlines
31h 20mORD-ICN
6/15Sat
multi-stopTurkish Airlines
37h 15mICN-ORD
$1,917
6/6Thu
multi-stopFinnair
32h 05mORD-ICN
6/17Mon
multi-stopFinnair
33h 45mICN-ORD
$1,928
6/6Thu
multi-stopFinnair
35h 35mORD-ICN
6/15Sat
multi-stopFinnair
33h 45mICN-ORD
$2,028

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Flights to South Korea

Return flight deals:

South Korea - Illinois

Cabin classes:

$4,310
$4,710
$6,458
$900