What airlines fly to Illinois?

Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Illinois from South Korea according to our data. Korean Air is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from South Korea to Illinois?

The flight from South Korea to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Incheon (a popular airport in South Korea) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 12h 50m on average. If you fly from Seoul (another popular airport in South Korea) to Chicago O'Hare Intl Airport, then the average flight time is 17h.

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

As of May 2026, 14 flights take off from South Korea and land in Illinois each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

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

As of May 2026, there are 2 flights per day flying from South Korea to Illinois. The most common time of day flights depart is 10:00AM, with 100% of flights taking off at noon.

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

WestJet, Philippine Airlines, and Alaska Airlines are the most popular carriers operating from South Korea to Illinois

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

Prices for flights from South Korea to Illinois are refreshed on a daily basis.

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

As of May 2026, there are 4 operators available to choose from for flights from South Korea to Illinois.

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

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 South Korea to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$479 Cheap Flights from South Korea to Illinois in 2026

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Find the cheapest flights from South Korea to Illinois

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from South Korea to Illinois

Enter your travel dates to find the best prices.

12:40 pm - 8:40 am

GMP

ORD

34h 00m

1 stop

5:45 pm - 11:05 am

ORD

GMP

27h 20m

1 stop

$1,182ANA

Tue, Sep 8 - Tue, Sep 15

12:40 pm - 8:40 am

GMP

ORD

34h 00m

1 stop

5:35 pm - 11:20 am

ORD

GMP

27h 45m

1 stop

$1,183ANA

Mon, Oct 19 - Tue, Oct 27

2:15 am - 9:10 pm

ICN

ORD

32h 55m

2 stops

5:30 pm - 6:45 pm

ORD

ICN

35h 15m

1 stop

$1,214Multiple Airlines

Tue, Jul 28 - Tue, Aug 4

7:15 pm - 5:37 am

ICN

ORD

24h 22m

2 stops

5:30 pm - 6:45 pm

ORD

ICN

35h 15m

1 stop

$1,225Multiple Airlines

Wed, Jul 22 - Sat, Aug 22

4:50 pm - 5:28 pm

ICN

CMI

62h 38m

2 stops

1:32 pm - 3:25 pm

CMI

ICN

35h 53m

2 stops

$1,544United Airlines

Fri, Oct 23 - Mon, Oct 26

4:50 pm - 5:28 pm

ICN

CMI

62h 38m

2 stops

1:32 pm - 3:25 pm

CMI

ICN

35h 53m

2 stops

$1,550United Airlines

Fri, Oct 23 - Mon, Oct 26

7:00 pm - 8:50 am

ICN

MDW

27h 50m

2 stops

7:13 pm - 4:50 pm

MDW

ICN

31h 37m

2 stops

$1,680Delta

Mon, Sep 14 - Sat, Sep 26

7:40 pm - 8:50 am

ICN

MDW

27h 10m

1 stop

7:13 pm - 4:50 pm

MDW

ICN

31h 37m

2 stops

$1,687Delta

Mon, Sep 14 - Sat, Sep 26

6:30 pm - 12:33 pm

PUS

MDW

32h 03m

2 stops

9:30 am - 7:35 pm

MDW

PUS

20h 05m

2 stops

$2,015Korean Air

Sat, Oct 24 - Wed, Oct 28

6:30 pm - 12:33 pm

PUS

MDW

32h 03m

2 stops

9:30 am - 10:50 am

MDW

PUS

35h 20m

2 stops

$2,023Korean Air

Sat, Oct 24 - Wed, Oct 28

Turkish Airlines flights from South Korea to Illinois

Our best Turkish Airlines deals on South Korea to Illinois flight tickets

Turkish Airlines

Jul 15

ICN10:15 amIncheon Intl

37h 25m

1 stop

ORD9:40 amChicago O'Hare Intl

Jul 20

ORD8:10 pmChicago O'Hare Intl

22h 25m

1 stop

ICN8:35 amIncheon Intl

$1,289

Turkish Airlines

Jul 8

ICN11:20 pmIncheon Intl

24h 20m

1 stop

ORD9:40 amChicago O'Hare Intl

Jul 13

ORD8:10 pmChicago O'Hare Intl

22h 25m

1 stop

ICN8:35 amIncheon Intl

$1,291

Turkish Airlines

Jul 8

ICN11:20 pmIncheon Intl

24h 20m

1 stop

ORD9:40 amChicago O'Hare Intl

Jul 13

ORD8:10 pmChicago O'Hare Intl

22h 25m

1 stop

ICN8:35 amIncheon Intl

$1,292

Korean Air flights from South Korea to Illinois

Our best Korean Air deals on South Korea to Illinois flight tickets

Korean Air

Sep 11

ICN10:15 amIncheon Intl

16h 15m

1 stop

MDW12:30 pmChicago Midway

Sep 14

MDW9:49 amChicago Midway

17h 31m

1 stop

ICN5:20 pmIncheon Intl

$1,820

Korean Air

Sep 11

ICN10:15 amIncheon Intl

16h 15m

1 stop

MDW12:30 pmChicago Midway

Sep 14

MDW9:49 amChicago Midway

17h 31m

1 stop

ICN5:20 pmIncheon Intl

$1,821

Korean Air

Sep 11

ICN10:15 amIncheon Intl

16h 15m

1 stop

MDW12:30 pmChicago Midway

Sep 14

MDW9:49 amChicago Midway

17h 31m

1 stop

ICN5:20 pmIncheon Intl

$1,835

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Tue 9/8

12:40 pm-8:40 am

1 stop34h 00m

Chicago O'Hare Intl

Tue 9/15

5:45 pm-11:05 am

1 stop27h 20m

$1,182

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Mon 10/19

12:40 pm-8:40 am

1 stop34h 00m

Chicago O'Hare Intl

Tue 10/27

5:35 pm-11:20 am

1 stop27h 45m

$1,183

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Tue 7/28

2:15 am-9:10 pm

2 stops32h 55m

Chicago O'Hare Intl

Tue 8/4

5:30 pm-6:45 pm

1 stop35h 15m

$1,214

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Wed 7/22

7:15 pm-5:37 am

2 stops24h 22m

Chicago O'Hare Intl

Sat 8/22

5:30 pm-6:45 pm

1 stop35h 15m

$1,225

IncheonChampaign

ICN - CMI

ICNCMI

Incheon Intl

Fri 10/23

4:50 pm-5:28 pm

2 stops62h 38m

Champaign University-Willard

Mon 10/26

1:32 pm-3:25 pm

2 stops35h 53m

$1,544

IncheonChampaign

ICN - CMI

ICNCMI

Incheon Intl

Fri 10/23

4:50 pm-5:28 pm

2 stops62h 38m

Champaign University-Willard

Mon 10/26

1:32 pm-3:25 pm

2 stops35h 53m

$1,550

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Mon 9/14

7:00 pm-8:50 am

2 stops27h 50m

Chicago Midway

Sat 9/26

7:13 pm-4:50 pm

2 stops31h 37m

$1,680

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

Mon 9/14

7:40 pm-8:50 am

1 stop27h 10m

Chicago Midway

Sat 9/26

7:13 pm-4:50 pm

2 stops31h 37m

$1,687

Quickest round-trip

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Sat 10/24

6:30 pm-12:33 pm

2 stops32h 03m

Chicago Midway

Wed 10/28

9:30 am-7:35 pm

2 stops20h 05m

$2,015

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Sat 10/24

6:30 pm-12:33 pm

2 stops32h 03m

Chicago Midway

Wed 10/28

9:30 am-10:50 am

2 stops35h 20m

$2,023

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 South Korea to Illinois

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 Illinois?

The cheapest month to fly to Illinois from South Korea is in August. Flight prices, which tend to average around $117, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $199.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from South Korea to Illinois is on a Wednesday when prices can be found for as low as $1,317. Flights from South Korea to Illinois on a Tuesday will generally be more expensive and average around $1,860. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest South Korea to Illinois flight route?

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

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

You are more likely to see cheaper flights to Illinois from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,249 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from South Korea for as low as $894 on momondo.

What cabin class options are available on South Korea to Illinois flights?

There are 4 cabin classes available to choose from on South Korea to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between South Korea to Illinois.

Cheap South Korea to Illinois flight deals and tips

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

Best Price Found	$1,909
Fastest flight time	12h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from South Korea in the past 72 hours is $1,909. The best round-trip flight deal from South Korea to Illinois found on momondo in the last 72 hours is $1,915.

The fastest flight from South Korea to Illinois takes 12h 50m

Direct flights go from South Korea to Illinois every day.

There are 98 airports in Illinois. From South Korea there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from South Korea to Illinois

When did momondo last update prices for flights from South Korea to Illinois?
Prices for flights from South Korea to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from South Korea to Illinois?
As of May 2026, there are 4 operators available to choose from for flights from South Korea to Illinois.
How old do you have to be to fly from South Korea to Illinois?
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 South Korea to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from South Korea to Illinois?
Based on momondo bookings for flights between South Korea and Illinois, the leading plane model is Boeing 777-300ER, making up 92.80% of the total bookings. Other popular models include Airbus A380-800 with 2.54%, Boeing 787-9 Dreamliner with 2.12%, and Airbus A350-900 with 1.69%.

Best airlines flying from South Korea to Illinois

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $269	Free Cancellation	Rating 7.9 8,420 reviews	Search Delta flights
Alaska Airlines	PriceFrom $567	Free Cancellation	Rating 7.9 12,429 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 9,763 reviews	Search United Airlines flights
Korean Air	PriceFrom $787	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights

Why use momondo?

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

Finding the right flight to Illinois from South Korea is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

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

Yes. All flights to Illinois from South Korea on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from South Korea.

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

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

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Flights to New Yorkfrom $50

Flights to Los Angelesfrom $65

Flights to Orlandofrom $58

Flights to Miamifrom $71

Flights to Chicagofrom $67

Flights to San Franciscofrom $66

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $57

Flights to Bostonfrom $63

Flights to Atlantafrom $87

Flights to Fort Lauderdalefrom $58

Flights to Dallasfrom $56

Cheap flights from South Korea to Illinois from $479

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to Illinois departing on 9/7. 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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Find the cheapest flights from South Korea to Illinois

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Turkish Airlines flights from South Korea to Illinois

Our best Turkish Airlines deals on South Korea to Illinois flight tickets

Korean Air flights from South Korea to Illinois

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

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest South Korea to Illinois flight route?

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

What cabin class options are available on South Korea to Illinois flights?

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

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

What airlines fly to Illinois?

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

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

How long is the flight from South Korea to Illinois?

Cheap South Korea to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from South Korea to Illinois

Best airlines flying from South Korea to Illinois

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

Why use momondo?

An easier way to manage your Illinois 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 Illinois

Popular cities in Illinois

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