What airlines fly to Illinois?

Korean Air, Delta and Air Canada 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 53% 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.

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

EVA Air is the most popular carrier operating from South Korea to Illinois

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

As of September 2025, 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.

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 Busan (another popular airport in South Korea) to Chicago O'Hare Intl Airport, then the average flight time is 21h 20m.

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

As of September 2025, 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.

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 September 2025, 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.

$381 Cheap Flights from South Korea to Illinois in 2025/26

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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

8:35 pm - 6:24 amICN-ORD

23h 49m1 stop

6:00 am - 6:35 pmORD-ICN

22h 35m1 stop

$589Hawaiian Airlines

Find Deal

Sun, Oct 12 - Wed, Oct 22

8:35 pm - 6:24 amICN-ORD

23h 49m1 stop

6:00 am - 6:35 pmORD-ICN

22h 35m1 stop

$591Hawaiian Airlines

Find Deal

Sun, Oct 12 - Wed, Oct 22

8:05 pm - 12:24 amICN-STL

19h 19m2 stops

5:34 pm - 4:30 pmSTL-ICN

31h 56m2 stops

$633Delta

Find Deal

Wed, Nov 5 - Wed, Nov 12

8:05 pm - 2:48 pmICN-STL

33h 43m2 stops

6:30 am - 3:30 pmSTL-ICN

18h 00m1 stop

$740Delta

Find Deal

Thu, Feb 12 - Mon, Feb 16

6:00 pm - 1:14 pmICN-ORD

33h 14m2 stops

8:15 pm - 5:10 pmORD-ICN

29h 55m2 stops

$815Air Canada

Find Deal

Wed, Oct 15 - Thu, Nov 27

6:00 pm - 9:51 amICN-ORD

29h 51m1 stop

9:55 am - 5:30 pmORD-ICN

17h 35m1 stop

$858Air Canada

Find Deal

Sun, Oct 12 - Wed, Oct 22

7:55 am - 8:57 pmGMP-ORD

27h 02m2 stops

6:18 pm - 9:50 pmORD-GMP

37h 32m2 stops

$1,264Japan Airlines

Find Deal

Sat, Oct 11 - Mon, Oct 13

7:55 am - 8:57 pmGMP-ORD

27h 02m2 stops

5:35 pm - 10:55 amORD-GMP

26h 20m1 stop

$1,301Japan Airlines

Find Deal

Wed, Oct 15 - Thu, Nov 27

8:05 am - 9:30 amPUS-ORD

15h 25m1 stop

12:15 pm - 3:10 pmORD-PUS

36h 55m1 stop

$1,306Korean Air

Find Deal

Thu, Oct 23 - Wed, Oct 29

4:30 pm - 9:30 amPUS-ORD

31h 00m1 stop

12:15 pm - 10:50 amORD-PUS

32h 35m1 stop

$1,338Korean Air

Find Deal

Thu, Oct 23 - Wed, Oct 29

Alaska Airlines flights from South Korea to Illinois

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

Alaska Airlines

Oct 18

ICN8:35 pmIncheon Intl

17h 24m

1 stop

ORD11:59 pmChicago O'Hare Intl

Oct 25

ORD5:59 pmChicago O'Hare Intl

34h 36m

1 stop

ICN6:35 pmIncheon Intl

$600

Find similar

Alaska Airlines

Oct 13

ICN8:35 pmIncheon Intl

23h 49m

1 stop

ORD6:24 amChicago O'Hare Intl

Oct 25

ORD10:05 amChicago O'Hare Intl

18h 30m

1 stop

ICN6:35 pmIncheon Intl

$609

Find similar

Alaska Airlines

Oct 12

ICN8:35 pmIncheon Intl

23h 49m

1 stop

ORD6:24 amChicago O'Hare Intl

Oct 22

ORD7:59 pmChicago O'Hare Intl

32h 36m

2 stops

ICN6:35 pmIncheon Intl

$721

Find similar

Air Canada flights from South Korea to Illinois

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

Air Canada

Oct 15

ICN6:00 pmIncheon Intl

33h 14m

2 stops

ORD1:14 pmChicago O'Hare Intl

Nov 27

ORD8:15 pmChicago O'Hare Intl

29h 55m

2 stops

ICN5:10 pmIncheon Intl

$815

Find similar

Air Canada

Oct 12

ICN6:00 pmIncheon Intl

29h 51m

1 stop

ORD9:51 amChicago O'Hare Intl

Oct 22

ORD9:55 amChicago O'Hare Intl

17h 35m

1 stop

ICN5:30 pmIncheon Intl

$858

Find similar

Air Canada

Oct 6

ICN5:45 pmIncheon Intl

18h 54m

2 stops

ORD10:39 pmChicago O'Hare Intl

Dec 30

ORD3:40 pmChicago O'Hare Intl

34h 30m

1 stop

ICN5:10 pmIncheon Intl

$945

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Sun 10/12

8:35 pm-6:24 am

1 stop23h 49m

Chicago O'Hare Intl

Wed 10/22

6:00 am-6:35 pm

1 stop22h 35m

$589

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Sun 10/12

8:35 pm-6:24 am

1 stop23h 49m

Chicago O'Hare Intl

Wed 10/22

6:00 am-6:35 pm

1 stop22h 35m

$591

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Wed 11/5

8:05 pm-12:24 am

2 stops19h 19m

Lambert-St Louis

Wed 11/12

5:34 pm-4:30 pm

2 stops31h 56m

$633

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Thu 2/12

8:05 pm-2:48 pm

2 stops33h 43m

Lambert-St Louis

Mon 2/16

6:30 am-3:30 pm

1 stop18h 00m

$740

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Wed 10/15

6:00 pm-1:14 pm

2 stops33h 14m

Chicago O'Hare Intl

Thu 11/27

8:15 pm-5:10 pm

2 stops29h 55m

$815

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Sun 10/12

6:00 pm-9:51 am

1 stop29h 51m

Chicago O'Hare Intl

Wed 10/22

9:55 am-5:30 pm

1 stop17h 35m

$858

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Sat 10/11

7:55 am-8:57 pm

2 stops27h 02m

Chicago O'Hare Intl

Mon 10/13

6:18 pm-9:50 pm

2 stops37h 32m

$1,264

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Wed 10/15

7:55 am-8:57 pm

2 stops27h 02m

Chicago O'Hare Intl

Thu 11/27

5:35 pm-10:55 am

1 stop26h 20m

$1,301

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 10/23

8:05 am-9:30 am

1 stop15h 25m

Chicago O'Hare Intl

Wed 10/29

12:15 pm-3:10 pm

1 stop36h 55m

$1,306

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 10/23

4:30 pm-9:30 am

1 stop31h 00m

Chicago O'Hare Intl

Wed 10/29

12:15 pm-10:50 am

1 stop32h 35m

$1,338

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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 November. Flight prices, which tend to average around $846, 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 November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $889.

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 Tuesday when prices can be found for as low as $1,328. Flights from South Korea to Illinois on a Friday will generally be more expensive and average around $1,542. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from South Korea to Illinois during this time can be as low as $1,098. Flights in the evening are often more expensive with an average ticket price of $1,995.

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 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 $1,298 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 $957 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?

You could potentially save up to 32% on your flight if you consider stops on a South Korea to Illinois flight.

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	$1,103
Fastest flight time	12h 50m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from South Korea in the past 72 hours is $1,103. The best round-trip flight deal from South Korea to Illinois found on momondo in the last 72 hours is $1,218.

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

Direct flights go from South Korea to Illinois every day.

There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)

Search flight deals

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 September 2025, 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 87.70% of the total bookings. Other popular models include Airbus A350-900 with 4.53%, Airbus A380-800 with 4.21%, and Boeing 787-9 Dreamliner with 2.91%.

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 $229	Free Cancellation	Rating 7.9 7,974 reviews	Search Delta flights
Asiana Airlines	PriceFrom $558	Free Cancellation	Rating 8.2 482 reviews	Search Asiana Airlines flights
Air Canada	PriceFrom $730	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
Korean Air	PriceFrom $787	Free Cancellation	Rating 8.4 1,143 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.

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.

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Popular cities in Illinois

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Cheap flights from South Korea to Illinois from $381

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 10/26. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from South Korea to Illinois

Recent round-trip flight deals from South Korea to Illinois

Recent one-way flight deals from South Korea to Illinois

Recent last minute flight deals from South Korea to Illinois

Recent direct flight deals from South Korea to Illinois

Alaska Airlines flights from South Korea to Illinois

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

Air Canada flights from South Korea to Illinois

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

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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

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 time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from South Korea to Illinois during this time can be as low as $1,098. Flights in the evening are often more expensive with an average ticket price of $1,995.

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 to Illinois?

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?

You could potentially save up to 32% on your flight if you consider stops on a South Korea to Illinois flight.

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

EVA Air is the most popular carrier operating from South Korea to Illinois

What airlines fly to Illinois?

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

As of September 2025, 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.

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

As of September 2025, 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 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

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

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

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

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

What is the most popular plane model 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?

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

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

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

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

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

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