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

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. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Seoul?

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 with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

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

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 from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$536 CHEAP FLIGHTS from Illinois to Seoul

KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

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Cheap Flights from Illinois to Seoul

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Seoul

Di, Sep 22 - Di, Okt 6

2:40 pm - 4:05 pm

STL

ICN

35h 25m

2 stops

5:45 pm - 2:00 pm

ICN

STL

34h 15m

2 stops

$984Air Canada

Mi, Sep 2 - Mi, Sep 9

12:30 am - 6:45 pm

ORD

ICN

28h 15m

1 stop

7:45 pm - 8:45 pm

ICN

ORD

39h 00m

1 stop

$996EVA Air

Mo, Aug 17 - Di, Sep 8

12:30 am - 6:45 pm

ORD

ICN

28h 15m

1 stop

12:00 pm - 8:45 pm

ICN

ORD

22h 45m

1 stop

$1,011Multiple Airlines

Mo, Sep 7 - Mo, Sep 21

12:30 am - 6:45 pm

ORD

ICN

28h 15m

1 stop

7:45 pm - 8:45 pm

ICN

ORD

39h 00m

1 stop

$1,013Multiple Airlines

Di, Sep 22 - Di, Okt 6

9:46 am - 9:15 pm

STL

GMP

21h 29m

2 stops

12:05 pm - 11:05 pm

GMP

STL

25h 00m

2 stops

$1,242Japan Airlines

Di, Sep 22 - Di, Okt 6

9:46 am - 9:15 pm

STL

GMP

21h 29m

2 stops

12:05 pm - 11:05 pm

GMP

STL

25h 00m

2 stops

$1,301Japan Airlines

Sa, Sep 5 - Mi, Sep 9

5:45 am - 4:20 am

CMI

ICN

32h 35m

2 stops

5:15 pm - 12:05 am

ICN

CMI

20h 50m

2 stops

$1,377United Airlines

Di, Sep 29 - Mi, Okt 7

3:52 pm - 4:20 am

MLI

ICN

22h 28m

2 stops

5:15 pm - 12:14 am

ICN

MLI

20h 59m

2 stops

$1,377United Airlines

Mo, Aug 24 - Sa, Sep 5

7:20 am - 3:45 pm

MLI

ICN

18h 25m

1 stop

5:50 pm - 11:25 pm

ICN

MLI

19h 35m

1 stop

$1,508American Airlines

Mo, Aug 24 - Sa, Sep 5

7:20 am - 3:45 pm

MLI

ICN

18h 25m

1 stop

5:50 pm - 11:23 pm

ICN

MLI

19h 33m

2 stops

$1,513American Airlines

Useful Info

Low season	February
High season	June
Cheapest flight	$536

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 37% increase in price.

Flight from Chicago O'Hare Airport to Seoul Incheon Airport

How does KAYAK find such low prices on flights from Illinois to Seoul?
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.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Seoul?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul 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?
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 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?
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 from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Seoul

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Illinois

First Class flights to Seoulfrom $26,570

Business Class flights to Seoulfrom $4,268

Premium Economy Class flights to Seoulfrom $5,635

Economy Class flights to Seoulfrom $750

$522 Find Cheap Flights from Illinois to Seoul

KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

Cheap Flights from Illinois to Seoul

Recent round-trip flight deals from Illinois to Seoul

Recent one-way flight deals from Illinois to Seoul

Recent last minute flight deals from Illinois to Seoul

Recent direct flight deals from Illinois to Seoul

Good to know

FAQs for booking flights from Illinois to Seoul

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

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.

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

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

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 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?

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

Everything you need to know for your flight to Seoul

Cabin class types available on flights to Illinois

Complete your trip to Seoul with a hotel stay or car rental

Find direct flights for Seoul

Flights to other popular destinations

Flights from domestic origins to Seoul

Choose which airport to fly into in Seoul

Find deals for your return flight