How many flights depart from Illinois to South Korea on average per day?

2 flights are operational daily from Illinois to South Korea as of May 2026. The most popular departure time for this route is 12:00PM, with 100% of flights per day taking off in the afternoon.

What is the cheapest airline that flies from Illinois to South Korea?

Air Canada, Alaska Airlines, and EVA Air are the most popular carriers operating from Illinois to South Korea

How many flights depart from Illinois to South Korea on average per week?

14 flights are operational weekly from Illinois to South Korea as of May 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How long is the flight from Illinois to South Korea?

The flight from Illinois to South Korea depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Incheon Intl Airport (the most popular airport in South Korea), then the flight time is 15h 44m on average. If you fly from Moline (another popular airport in Illinois) to Incheon Intl Airport, then the average flight time is 25h 40m.

What airlines fly to South Korea?

Korean Air, EVA Air and Delta are the top three most popular airlines that fly to South Korea from Illinois according to our data. Korean Air is the first choice among our users, with 40% of people opting to fly with this airline when traveling to South Korea. Keep in mind that there are 11 different airlines that fly to South Korea on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to South Korea?

Prices for flights from Illinois to South Korea were last updated today.

How many operators does momondo search for flights from Illinois to South Korea?

As of May 2026, there are 11 operators available to choose from for flights from Illinois to South Korea.

How old do you have to be to fly from Illinois to South Korea?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to South Korea.

What documentation or ID do you need to fly to South Korea?

The travel and health documents you'll need for your trip to South Korea may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Korea. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$586 Cheap Flights from Illinois to South Korea in 2026

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Find the cheapest flights from Illinois to South Korea

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:00 pm - 5:30 am

ORD

ICN

23h 30m

1 stop

8:05 pm - 2:20 pm

ICN

ORD

32h 15m

1 stop

$1,169Cathay Pacific

Mon, Sep 7 - Wed, Sep 9

4:15 pm - 2:05 pm

ORD

ICN

31h 50m

1 stop

6:40 am - 1:55 pm

ICN

ORD

21h 15m

1 stop

$1,170Cathay Pacific

Fri, Oct 2 - Mon, Oct 12

11:50 am - 12:25 pm

ORD

ICN

34h 35m

1 stop

9:50 am - 9:34 pm

ICN

ORD

49h 44m

2 stops

$1,174Multiple Airlines

Tue, Oct 6 - Tue, Oct 20

4:15 pm - 12:25 am

ORD

ICN

42h 10m

1 stop

6:40 am - 1:55 pm

ICN

ORD

21h 15m

1 stop

$1,175Cathay Pacific

Fri, Oct 2 - Thu, Oct 15

4:00 pm - 12:40 pm

ORD

ICN

30h 40m

1 stop

1:55 am - 2:20 pm

ICN

ORD

26h 25m

1 stop

$1,176Cathay Pacific

Sat, Sep 5 - Sun, Sep 13

5:30 pm - 6:45 pm

ORD

ICN

35h 15m

1 stop

8:45 pm - 4:40 pm

ICN

ORD

33h 55m

1 stop

$1,177WestJet

Sat, Sep 5 - Sun, Sep 13

9:13 pm - 3:50 pm

ORD

ICN

28h 37m

1 stop

8:35 am - 12:42 am

ICN

ORD

54h 07m

2 stops

$1,182Multiple Airlines

Fri, Aug 7 - Tue, Aug 25

7:00 am - 5:15 pm

STL

ICN

43h 15m

2 stops

12:20 am - 11:56 pm

ICN

STL

38h 36m

2 stops

$1,211Qatar Airways

Mon, Nov 9 - Sun, Nov 15

12:30 am - 7:15 pm

ORD

GMP

28h 45m

1 stop

7:15 pm - 8:45 pm

GMP

ORD

39h 30m

1 stop

$1,239EVA Air

Mon, Aug 24 - Tue, Sep 8

12:30 am - 6:10 pm

ORD

GMP

27h 40m

1 stop

7:15 pm - 8:45 pm

GMP

ORD

39h 30m

1 stop

$1,242EVA Air

Sun, Sep 20 - Tue, Oct 13

WestJet flights from Illinois to South Korea

Our best WestJet deals on Illinois to South Korea flight tickets

WestJet

Sep 5

ORD5:30 pmChicago O'Hare Intl

35h 15m

1 stop

ICN6:45 pmIncheon Intl

Sep 13

ICN8:45 pmIncheon Intl

33h 55m

1 stop

ORD4:40 pmChicago O'Hare Intl

$1,177

WestJet

Sep 11

ORD5:30 pmChicago O'Hare Intl

35h 15m

1 stop

ICN6:45 pmIncheon Intl

Sep 20

ICN8:45 pmIncheon Intl

33h 55m

1 stop

ORD4:40 pmChicago O'Hare Intl

$1,216

WestJet

Sep 13

ORD5:30 pmChicago O'Hare Intl

35h 15m

1 stop

ICN6:45 pmIncheon Intl

Sep 21

ICN8:45 pmIncheon Intl

33h 55m

1 stop

ORD4:40 pmChicago O'Hare Intl

$1,219

Cathay Pacific flights from Illinois to South Korea

Our best Cathay Pacific deals on Illinois to South Korea flight tickets

Cathay Pacific

Sep 7

ORD4:00 pmChicago O'Hare Intl

23h 30m

1 stop

ICN5:30 amIncheon Intl

Sep 9

ICN8:05 pmIncheon Intl

32h 15m

1 stop

ORD2:20 pmChicago O'Hare Intl

$1,169

Cathay Pacific

Oct 2

ORD4:15 pmChicago O'Hare Intl

31h 50m

1 stop

ICN2:05 pmIncheon Intl

Oct 12

ICN6:40 amIncheon Intl

21h 15m

1 stop

ORD1:55 pmChicago O'Hare Intl

$1,170

Cathay Pacific

Oct 2

ORD4:15 pmChicago O'Hare Intl

42h 10m

1 stop

ICN12:25 amIncheon Intl

Oct 15

ICN6:40 amIncheon Intl

21h 15m

1 stop

ORD1:55 pmChicago O'Hare Intl

$1,175

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 9/7

4:00 pm-5:30 am

1 stop23h 30m

Incheon Intl

Wed 9/9

8:05 pm-2:20 pm

1 stop32h 15m

$1,169

Quickest round-trip

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Fri 10/2

4:15 pm-2:05 pm

1 stop31h 50m

Incheon Intl

Mon 10/12

6:40 am-1:55 pm

1 stop21h 15m

$1,170

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 10/6

11:50 am-12:25 pm

1 stop34h 35m

Incheon Intl

Tue 10/20

9:50 am-9:34 pm

2 stops49h 44m

$1,174

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Fri 10/2

4:15 pm-12:25 am

1 stop42h 10m

Incheon Intl

Thu 10/15

6:40 am-1:55 pm

1 stop21h 15m

$1,175

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 9/5

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Sun 9/13

1:55 am-2:20 pm

1 stop26h 25m

$1,176

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 9/5

5:30 pm-6:45 pm

1 stop35h 15m

Incheon Intl

Sun 9/13

8:45 pm-4:40 pm

1 stop33h 55m

$1,177

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Fri 8/7

9:13 pm-3:50 pm

1 stop28h 37m

Incheon Intl

Tue 8/25

8:35 am-12:42 am

2 stops54h 07m

$1,182

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 11/9

7:00 am-5:15 pm

2 stops43h 15m

Incheon Intl

Sun 11/15

12:20 am-11:56 pm

2 stops38h 36m

$1,211

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 8/24

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Tue 9/8

7:15 pm-8:45 pm

1 stop39h 30m

$1,239

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 9/20

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 10/13

7:15 pm-8:45 pm

1 stop39h 30m

$1,242

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to South Korea

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to South Korea?

If you aren’t able to travel to South Korea during the month of March, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $137.

What is the cheapest day to depart on your flight to South Korea?

On average, the least expensive day to fly to South Korea from Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $877. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to South Korea for around $1,094.

What is the cheapest time of day to depart on your flight to South Korea?

Flying to South Korea from Illinois in the morning is the least expensive time of day to depart. momondo users have found prices as low as $972 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $982 on average. Flights to South Korea from Illinois in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to South Korea flight route?

Fly from Chicago O'Hare Intl to Incheon Intl for the best Illinois - South Korea flight prices

How far in advance should I book a flight from Illinois to South Korea?

You are more likely to see cheaper flights to South Korea from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to South Korea for around $1,474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Korea from Illinois for as low as $934 on momondo.

Can stopping save me money on Illinois to South Korea flights?

You could potentially save up to 16% on your flight if you consider stops on a Illinois to South Korea flight.

Cheap Illinois to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to South Korea

Best Price Found	$637
Fastest flight time	14h 20m
Direct flights	Every day
Airports in South Korea	24 airports

The best one-way flight to South Korea from Illinois in the past 72 hours is $637. The best round-trip flight deal from Illinois to South Korea found on momondo in the last 72 hours is $1,046.

The fastest flight from Illinois to South Korea takes 14h 20m

Direct flights go from Illinois to South Korea every day.

There are 24 airports in South Korea. From Illinois there are direct flights to Incheon Intl (ICN).

Search flight deals

Frequently asked questions about flying from Illinois to South Korea

When did momondo last update prices for flights from Illinois to South Korea?
Prices for flights from Illinois to South Korea were last updated today.
How many operators does momondo search for flights from Illinois to South Korea?
As of May 2026, there are 11 operators available to choose from for flights from Illinois to South Korea.
How old do you have to be to fly from Illinois to South Korea?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to South Korea.
What documentation or ID do you need to fly to South Korea?
The travel and health documents you'll need for your trip to South Korea may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Korea. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to South Korea?
momondo data reveals that the most frequently booked plane model on the route from Illinois to South Korea is Boeing 777-300ER, representing 90.62% of all bookings. The subsequent popular models are Airbus A350-900 at 4.06%, Boeing 787-10 Dreamliner at 1.25%, and Boeing 787-8 Dreamliner at 0.94%.

Best airlines flying from Illinois to South Korea

Compare and see reviews for airlines that fly from Illinois to South Korea with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
Cathay Pacific	PriceFrom $639	Free Cancellation	Rating 7.6 1,331 reviews	Search Cathay Pacific flights
Turkish Airlines	PriceFrom $845	Free Cancellation	Rating 7.4 4,368 reviews	Search Turkish Airlines flights
American Airlines	PriceFrom $916	Free Cancellation	Rating 7.1 11,663 reviews	Search American Airlines flights
Japan Airlines	PriceFrom $931	Free Cancellation	Rating 8.3 1,825 reviews	Search Japan Airlines flights
EVA Air	PriceFrom $948	Free Cancellation	Rating 8.5 1,447 reviews	Search EVA Air flights
Air Canada	PriceFrom $1,088	Free Cancellation	Rating 7.1 11,046 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $1,148	Free Cancellation	Rating 8.1 532 reviews	Search Asiana Airlines flights
Finnair	PriceFrom $1,174	Free Cancellation	Rating 7.6 1,393 reviews	Search Finnair flights
United Airlines	PriceFrom $1,191	Free Cancellation	Rating 7.4 9,727 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to South Korea?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to South Korea. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to South Korea with flexible booking policies on momondo?

momondo does allow users to show only those flights to South Korea from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to South Korea?

momondo helps you find the best flight between Illinois and South Korea by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Illinois to South Korea right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to South Korea now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to South Korea and let you know when they change.

An easier way to manage your South Korea trip

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Popular cities in South Korea

Flights to Seoulfrom $692

Flights to Jeju Cityfrom $1,016

Flights to Busanfrom $883

Flights to Daegufrom $1,097

Flights to Gwangjufrom $1,546

Flights to Yeosu

Flights to Ulsanfrom $1,876

Flights to Jinjufrom $1,716

Flights to Muan

Cheap flights from Illinois to South Korea from $492

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to South Korea departing on 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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WestJet flights from Illinois to South Korea

Our best WestJet deals on Illinois to South Korea flight tickets

Cathay Pacific flights from Illinois to South Korea

Our best Cathay Pacific deals on Illinois to South Korea flight tickets

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See travel insights to South Korea from

How to get the cheapest flight ticket from Illinois to South Korea

What is the cheapest month to fly to South Korea?

What is the cheapest day to depart on your flight to South Korea?

What is the cheapest time of day to depart on your flight to South Korea?

What is the cheapest Illinois to South Korea flight route?

How far in advance should I book a flight from Illinois to South Korea?

Can stopping save me money on Illinois to South Korea flights?

What is the cheapest airline that flies from Illinois to South Korea?

What airlines fly to South Korea?

How many flights depart from Illinois to South Korea on average per day?

How many flights depart from Illinois to South Korea on average per week?

How long is the flight from Illinois to South Korea?

Cheap Illinois to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to South Korea

Best Price Found

Fastest flight time

Direct flights

Airports in South Korea

Frequently asked questions about flying from Illinois to South Korea

Best airlines flying from Illinois to South Korea

Compare and see reviews for airlines that fly from Illinois to South Korea with momondo

Why use momondo?

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Korea

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

South Korea flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to South Korea

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in South Korea. Availability may vary depending on flight origin and airline.

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