Find flights
When to book
FAQs & Tips
Deals

Find cheap flights from Illinois to South Korea from $533

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 8/24. 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
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to South Korea

In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Good to know

Low season

January

High season

June

Cheapest flight

$533
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
42h 15mICN-ORD
$953
10/9Wed
1 stopTurkish Airlines
31h 20mORD-ICN
10/23Wed
1 stopTurkish Airlines
45h 15mICN-ORD
$960
9/10Tue
1 stopEVA Air
20h 30mORD-ICN
9/25Wed
1 stopEVA Air
22h 45mICN-ORD
$1,079
10/8Tue
1 stopEVA Air
28h 15mORD-ICN
10/23Wed
1 stopEVA Air
39h 00mICN-ORD
$1,085
9/3Tue
1 stop
33h 25mORD-ICN
9/7Sat
2 stops
24h 28mICN-ORD
$1,206
9/3Tue
1 stop
20h 30mORD-ICN
9/10Tue
2 stops
24h 28mICN-ORD
$1,207
9/16Mon
1 stopAir Canada
38h 25mSTL-ICN
12/12Thu
2 stopsAir Canada
30h 08mICN-STL
$1,234
11/3Sun
2 stopsLOT
42h 15mORD-ICN
11/17Sun
1 stopLOT
26h 10mICN-ORD
$1,235
11/20Wed
1 stopAir Canada
35h 15mSTL-ICN
12/4Wed
1 stopAir Canada
34h 13mICN-STL
$1,239
11/10Sun
2 stopsLOT
42h 15mORD-ICN
11/24Sun
2 stopsLOT
50h 00mICN-ORD
$1,244

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/24Sat
2 stops
31h 20mORD-ICN
$533
7/22Mon
3 stops
48h 42mORD-ICN
$552
7/29Mon
1 stopTurkish Airlines
31h 10mORD-ICN
$574
7/30Tue
1 stopTurkish Airlines
31h 10mORD-ICN
$577
10/14Mon
1 stopEVA Air
28h 15mORD-ICN
$642
8/18Sun
1 stopEVA Air
28h 15mORD-ICN
$643
9/10Tue
1 stopCathay Pacific
39h 10mORD-ICN
$691
8/1Thu
1 stopCathay Pacific
39h 10mORD-ICN
$736
10/12Sat
2 stopsAmerican Airlines
30h 17mSTL-ICN
$779
10/12Sat
1 stopAmerican Airlines
35h 10mSTL-ICN
$793

Search by stops

Search by airline

Search by price

Last minute flights from Illinois to South Korea

Last minute flight, train and bus deals

6/15Sat
multi-stop
31h 39mORD-ICN
8/27Tue
multi-stop
43h 58mICN-ORD
$1,645
6/15Sat
multi-stop
35h 35mORD-ICN
8/27Tue
multi-stop
19h 58mICN-ORD
$1,790
6/11Tue
multi-stopAir Canada
34h 25mORD-ICN
7/9Tue
multi-stopAir Canada
34h 21mICN-ORD
$1,882
6/12Wed
multi-stopFinnair
23h 50mORD-ICN
7/2Tue
multi-stopFinnair
33h 45mICN-ORD
$1,923
6/12Wed
multi-stopFinnair
30h 35mORD-ICN
7/2Tue
multi-stopFinnair
33h 45mICN-ORD
$1,928
6/12Wed
multi-stopEVA Air
28h 15mORD-ICN
6/15Sat
multi-stopEVA Air
23h 00mICN-ORD
$1,949
6/12Wed
multi-stopAir Canada
34h 25mORD-ICN
7/2Tue
multi-stopAir Canada
34h 21mICN-ORD
$1,958
6/12Wed
multi-stopLOT
26h 20mORD-ICN
7/2Tue
multi-stopLOT
41h 50mICN-ORD
$2,112
6/11Tue
multi-stopEVA Air
30h 10mORD-ICN
6/14Fri
multi-stopEVA Air
23h 00mICN-ORD
$2,135
6/12Wed
multi-stopLOT
23h 10mORD-ICN
6/26Wed
multi-stopLOT
44h 55mICN-ORD
$2,142

Search by stops

Search by airline

Search by price

Flights to South Korea

Return flight deals:

South Korea - Illinois

Cabin classes:

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