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Find cheap flights from Illinois to South Korea from $513

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 7/15. 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

$513
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
32h 05mORD-ICN
10/21Mon
1 stopCathay Pacific
38h 50mICN-ORD
$953
9/23Mon
1 stopTurkish Airlines
31h 20mORD-ICN
10/16Wed
1 stopTurkish Airlines
37h 10mICN-ORD
$959
11/26Tue
1 stopEVA Air
28h 15mORD-ICN
12/3Tue
1 stopEVA Air
23h 05mICN-ORD
$1,080
10/8Tue
1 stopEVA Air
28h 15mORD-ICN
10/30Wed
1 stopEVA Air
39h 00mICN-ORD
$1,084
11/1Fri
1 stopLOT
42h 15mORD-ICN
11/10Sun
1 stopLOT
26h 10mICN-ORD
$1,206
8/22Thu
1 stop
22h 15mORD-ICN
9/19Thu
1 stop
17h 47mICN-ORD
$1,227
8/29Thu
2 stops
33h 45mORD-ICN
9/6Fri
2 stops
30h 14mICN-ORD
$1,228
10/19Sat
1 stopLOT
21h 50mORD-ICN
11/3Sun
1 stopLOT
26h 10mICN-ORD
$1,233
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

7/15Mon
2 stops
49h 42mORD-ICN
$513
7/15Mon
3 stops
48h 12mORD-ICN
$522
8/19Mon
1 stopTurkish Airlines
31h 20mORD-ICN
$577
8/24Sat
1 stopTurkish Airlines
31h 10mORD-ICN
$617
8/5Mon
1 stopEVA Air
28h 15mORD-ICN
$623
8/18Sun
1 stopEVA Air
28h 15mORD-ICN
$642
7/10Wed
1 stopAmerican Airlines
18h 15mSTL-ICN
$779
8/21Wed
3 stopsSingapore Airlines
46h 10mORD-ICN
$791
7/12Fri
2 stopsAmerican Airlines
31h 29mSTL-ICN
$829
8/28Wed
3 stopsSingapore Airlines
46h 10mORD-ICN
$863

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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