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Find cheap flights from Illinois to South Korea from $553

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 7/30. 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
Thu 7/4
Thu 7/11

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In the last 7 days travelers have searched 44,060,346 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$553
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 stopTurkish Airlines
31h 10mORD-ICN
10/21Mon
1 stopTurkish Airlines
24h 20mICN-ORD
$635
10/1Tue
1 stopCathay Pacific
30h 30mORD-ICN
10/21Mon
1 stopCathay Pacific
32h 10mICN-ORD
$909
10/1Tue
1 stopCathay Pacific
39h 10mORD-ICN
10/21Mon
1 stopCathay Pacific
42h 15mICN-ORD
$953
10/14Mon
1 stopEVA Air
28h 15mORD-ICN
10/22Tue
1 stopEVA Air
22h 45mICN-ORD
$1,053
10/30Wed
1 stopEVA Air
28h 15mORD-ICN
11/11Mon
1 stopEVA Air
23h 05mICN-ORD
$1,065
10/12Sat
1 stopAsiana Airlines
20h 25mORD-ICN
10/20Sun
1 stopAsiana Airlines
22h 19mICN-ORD
$1,085
8/27Tue
2 stopsJapan Airlines
24h 48mSTL-GMP
9/10Tue
2 stopsJapan Airlines
24h 55mGMP-STL
$1,118
8/24Sat
1 stop
28h 05mORD-ICN
9/1Sun
2 stops
23h 28mICN-ORD
$1,164
10/1Tue
2 stops
26h 43mORD-ICN
10/21Mon
2 stops
30h 14mICN-ORD
$1,239
8/21Wed
2 stopsJapan Airlines
21h 00mSTL-GMP
9/4Wed
2 stopsJapan Airlines
21h 42mGMP-STL
$1,548

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Recent one-way flight deals

7/30Tue
2 stops
46h 25mORD-ICN
$553
7/30Tue
2 stops
46h 25mORD-ICN
$554
8/19Mon
1 stopTurkish Airlines
22h 15mORD-ICN
$577
8/12Mon
1 stopTurkish Airlines
22h 15mORD-ICN
$588
8/18Sun
1 stopEVA Air
28h 15mORD-ICN
$642
9/17Tue
1 stopEVA Air
28h 15mORD-ICN
$676
8/1Thu
1 stopCathay Pacific
39h 10mORD-ICN
$736
8/1Thu
1 stopCathay Pacific
37h 10mORD-ICN
$745
10/2Wed
2 stopsAir Canada
38h 05mSTL-ICN
$793
10/1Tue
2 stopsAir Canada
39h 30mSTL-ICN
$799

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Last minute flights from Illinois to South Korea

Last minute flight, train and bus deals

6/9Sun
multi-stop
34h 45mORD-ICN
6/14Fri
multi-stop
36h 04mICN-ORD
$1,641
6/9Sun
multi-stop
44h 10mORD-ICN
6/12Wed
multi-stop
30h 59mICN-ORD
$1,665
6/5Wed
multi-stopEVA Air
34h 55mORD-ICN
6/10Mon
multi-stopEVA Air
23h 00mICN-ORD
$1,753
6/5Wed
multi-stopLOT
42h 40mORD-ICN
6/22Sat
multi-stopLOT
45h 10mICN-ORD
$1,881
6/5Wed
multi-stopAir Canada
34h 25mORD-ICN
6/20Thu
multi-stopAir Canada
34h 21mICN-ORD
$1,882
6/5Wed
multi-stopAir Canada
30h 08mORD-ICN
6/11Tue
multi-stopAir Canada
32h 59mICN-ORD
$1,885
6/6Thu
multi-stopFinnair
35h 35mORD-ICN
6/22Sat
multi-stopFinnair
33h 45mICN-ORD
$1,928
6/5Wed
multi-stopEVA Air
25h 25mORD-ICN
6/13Thu
multi-stopEVA Air
23h 00mICN-ORD
$1,946
6/5Wed
multi-stopLOT
42h 40mORD-ICN
6/15Sat
multi-stopLOT
45h 10mICN-ORD
$1,952
6/6Thu
multi-stopFinnair
35h 35mORD-ICN
6/14Fri
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