What is the cheapest airline that flies from Seoul to Illinois?

Japan Airlines, EVA Air, and Air Canada are the most popular carriers operating from Seoul to Illinois

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

The number of flights available between Seoul and Illinois is 2 per day as of September 2026. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

How long is the flight from Seoul to Illinois?

The flight from Seoul 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 Seoul) 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 Seoul) to Chicago O'Hare Intl Airport, then the average flight time is 16h 45m.

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

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

What airlines fly to Illinois?

Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Seoul according to our data. Korean Air is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Seoul to Illinois were last updated today.

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

There are 5 operators available for flights from Seoul to Illinois as of September 2026.

How old do you have to be to fly from Seoul to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Illinois.

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

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$515 Cheap Flights from Seoul to Illinois in 2026/27

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Find the cheapest flights from Seoul to Illinois

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 4:55 pmICN Incheon Intl-ORD Chicago O'Hare Intl

24h 25m1 stop Manila Ninoy Aquino Intl

10:45 pm - 7:10 pmORD Chicago O'Hare Intl-ICN Incheon Intl

29h 25m1 stop Manila Ninoy Aquino Intl

$831Philippine Airlines

Wed, Nov 11 - Wed, Nov 18

7:30 am - 4:55 pmICN Incheon Intl-ORD Chicago O'Hare Intl

24h 25m1 stop Manila Ninoy Aquino Intl

10:45 pm - 7:10 pmORD Chicago O'Hare Intl-ICN Incheon Intl

29h 25m1 stop Manila Ninoy Aquino Intl

$834Philippine Airlines

Mon, Nov 9 - Mon, Nov 16

6:55 pm - 2:37 pmICN Incheon Intl-ORD Chicago O'Hare Intl

34h 42m1 stop Vancouver Intl

3:30 pm - 5:10 pmORD Chicago O'Hare Intl-ICN Incheon Intl

34h 40m1 stop Vancouver Intl

$1,141Air Canada

Fri, Nov 6 - Tue, Nov 10

6:55 pm - 2:32 pmICN Incheon Intl-ORD Chicago O'Hare Intl

34h 37m1 stop Vancouver Intl

3:35 pm - 5:10 pmORD Chicago O'Hare Intl-ICN Incheon Intl

34h 35m1 stop Vancouver Intl

$1,142Air Canada

Mon, Feb 22 - Fri, Feb 26

7:40 pm - 12:47 pmICN Incheon Intl-ORD Chicago O'Hare Intl

32h 07m1 stop New York John F Kennedy Intl

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,420Delta

Thu, Nov 26 - Wed, Dec 2

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

6:00 pm - 5:45 pmORD Chicago O'Hare Intl-ICN Incheon Intl

32h 45m1 stop New York John F Kennedy Intl

$1,421Delta

Mon, Oct 26 - Mon, Nov 2

8:00 pm - 4:47 pmICN Incheon Intl-ORD Chicago O'Hare Intl

35h 47m2 stops Seattle/Tacoma Intl San Diego

2:13 pm - 5:35 pmORD Chicago O'Hare Intl-ICN Incheon Intl

36h 22m2 stops San Diego Seattle/Tacoma Intl

$1,430Alaska Airlines

Fri, Dec 4 - Wed, Jan 27

8:00 pm - 4:47 pmICN Incheon Intl-ORD Chicago O'Hare Intl

35h 47m2 stops Seattle/Tacoma Intl San Diego

7:40 am - 5:35 pmORD Chicago O'Hare Intl-ICN Incheon Intl

42h 55m2 stops San Diego Seattle/Tacoma Intl

$1,430Alaska Airlines

Fri, Dec 4 - Sat, Jan 30

12:45 pm - 7:05 pmICN Incheon Intl-ORD Chicago O'Hare Intl

21h 20m2 stops San Francisco Denver Intl

11:29 am - 5:40 amORD Chicago O'Hare Intl-ICN Incheon Intl

27h 11m2 stops Newark San Francisco

$1,559United Airlines

Mon, Dec 21 - Mon, Jan 18

4:50 pm - 11:00 pmICN Incheon Intl-ORD Chicago O'Hare Intl

20h 10m1 stop San Francisco

9:47 pm - 4:25 pmORD Chicago O'Hare Intl-ICN Incheon Intl

27h 38m1 stop Newark

$1,607United Airlines

Mon, Oct 12 - Sat, Dec 26

Cheap last minute flights

Enter your travel dates to find the best prices.

7:20 am - 12:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

31h 10m2 stops Manila Ninoy Aquino Intl Los Angeles

7:00 am - 6:00 amORD Chicago O'Hare Intl-ICN Incheon Intl

33h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

$1,068Multiple Airlines

Sun, Oct 4 - Tue, Oct 13

7:20 am - 5:40 amICN Incheon Intl-ORD Chicago O'Hare Intl

36h 20m2 stops Manila Ninoy Aquino Intl Los Angeles

7:00 am - 6:00 amORD Chicago O'Hare Intl-ICN Incheon Intl

33h 00m2 stops Los Angeles Manila Ninoy Aquino Intl

$1,068Multiple Airlines

Tue, Oct 6 - Tue, Oct 13

5:45 pm - 9:35 amICN Incheon Intl-ORD Chicago O'Hare Intl

29h 50m2 stops Vancouver Intl Winnipeg

9:20 pm - 4:05 pmORD Chicago O'Hare Intl-ICN Incheon Intl

28h 45m2 stops Toronto Pearson Intl Vancouver Intl

$1,150Air Canada

Thu, Oct 1 - Thu, Oct 22

5:45 pm - 5:05 pmICN Incheon Intl-ORD Chicago O'Hare Intl

37h 20m2 stops Vancouver Intl Calgary

3:40 pm - 4:05 pmORD Chicago O'Hare Intl-ICN Incheon Intl

34h 25m1 stop Vancouver Intl

$1,248Air Canada

Thu, Oct 1 - Thu, Oct 22

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

5:30 pm - 5:20 pmORD Chicago O'Hare Intl-ICN Incheon Intl

33h 50m1 stop Minneapolis St Paul

$1,520Delta

Mon, Oct 5 - Tue, Oct 13

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

5:30 pm - 5:20 pmORD Chicago O'Hare Intl-ICN Incheon Intl

33h 50m1 stop Minneapolis St Paul

$1,520Delta

Tue, Oct 6 - Tue, Oct 13

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

7:35 am - 3:20 pmORD Chicago O'Hare Intl-ICN Incheon Intl

17h 45m1 stop Salt Lake City

$1,887Korean Air

Fri, Oct 2 - Wed, Oct 7

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

7:35 am - 3:20 pmORD Chicago O'Hare Intl-ICN Incheon Intl

17h 45m1 stop Salt Lake City

$1,900Korean Air

Fri, Oct 2 - Wed, Oct 7

7:35 pm - 1:18 pmICN Incheon Intl-ORD Chicago O'Hare Intl

31h 43m2 stops Seattle/Tacoma Intl Portland

2:14 pm - 5:30 pmORD Chicago O'Hare Intl-ICN Incheon Intl

37h 16m2 stops Portland Seattle/Tacoma Intl

$4,397Alaska Airlines

Fri, Oct 2 - Tue, Oct 6

7:35 pm - 1:18 pmICN Incheon Intl-ORD Chicago O'Hare Intl

31h 43m2 stops Seattle/Tacoma Intl Portland

2:14 pm - 5:30 pmORD Chicago O'Hare Intl-ICN Incheon Intl

37h 16m2 stops Portland Seattle/Tacoma Intl

$4,399Alaska Airlines

Sun, Oct 4 - Tue, Oct 6

Cheap direct flights

Enter your travel dates to find the best prices.

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,570Korean Air

Mon, Oct 26 - Mon, Nov 2

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

12:10 pm - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,570Korean Air

Mon, Oct 12 - Tue, Oct 27

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

12:10 pm - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,578Korean Air

Mon, Oct 12 - Tue, Oct 27

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,583Korean Air

Thu, Oct 22 - Mon, Nov 30

10:40 am - 8:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,583Korean Air

Tue, Nov 3 - Tue, Nov 10

10:40 am - 8:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,583Korean Air

Wed, Dec 9 - Wed, Mar 3

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,585Korean Air

Fri, Oct 16 - Sun, Nov 1

10:40 am - 8:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,586Korean Air

Mon, Nov 16 - Tue, Nov 24

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,651Delta

Tue, Oct 20 - Tue, Dec 1

10:40 am - 9:30 amICN Incheon Intl-ORD Chicago O'Hare Intl

12h 50mnonstop

11:10 am - 5:15 pmORD Chicago O'Hare Intl-ICN Incheon Intl

15h 05mnonstop

$1,707Delta

Sat, Oct 24 - Tue, Dec 1

Save money when you book flights with momondo

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Philippine Airlines flights from Seoul to Illinois

Our best Philippine Airlines deals on Seoul to Illinois flight tickets

Philippine Airlines

Nov 11

ICN7:30 amIncheon Intl

24h 25m

1 stop

ORD4:55 pmChicago O'Hare Intl

Nov 18

ORD10:45 pmChicago O'Hare Intl

29h 25m

1 stop

ICN7:10 pmIncheon Intl

$831

Philippine Airlines

Nov 9

ICN7:30 amIncheon Intl

24h 25m

1 stop

ORD4:55 pmChicago O'Hare Intl

Nov 16

ORD10:45 pmChicago O'Hare Intl

29h 25m

1 stop

ICN7:10 pmIncheon Intl

$834

Philippine Airlines

Nov 9

ICN7:30 amIncheon Intl

24h 25m

1 stop

ORD4:55 pmChicago O'Hare Intl

Dec 7

ORD10:45 pmChicago O'Hare Intl

40h 20m

1 stop

ICN6:05 amIncheon Intl

$852

ANA flights from Seoul to Illinois

Our best ANA deals on Seoul to Illinois flight tickets

ANA

Feb 21

GMP7:50 pmSeoul Gimpo Intl

26h 30m

1 stop

ORD7:20 amChicago O'Hare Intl

Feb 25

ORD4:25 pmChicago O'Hare Intl

35h 10m

1 stop

GMP6:35 pmSeoul Gimpo Intl

$1,266

ANA

Oct 21

GMP7:55 pmSeoul Gimpo Intl

26h 45m

1 stop

ORD8:40 amChicago O'Hare Intl

Dec 2

ORD4:25 pmChicago O'Hare Intl

27h 45m

1 stop

GMP11:10 amSeoul Gimpo Intl

$1,267

ANA

Nov 10

GMP7:50 pmSeoul Gimpo Intl

34h 01m

2 stops

ORD2:51 pmChicago O'Hare Intl

Dec 7

ORD4:25 pmChicago O'Hare Intl

27h 45m

1 stop

GMP11:10 amSeoul Gimpo Intl

$1,277

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Wed 11/11

7:30 am-4:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Wed 11/18

10:45 pm-7:10 pm

1 stop29h 25m

$831

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Mon 11/9

7:30 am-4:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Mon 11/16

10:45 pm-7:10 pm

1 stop29h 25m

$834

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Fri 11/6

6:55 pm-2:37 pm

1 stop34h 42m

Chicago O'Hare Intl

Tue 11/10

3:30 pm-5:10 pm

1 stop34h 40m

$1,141

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Mon 2/22

6:55 pm-2:32 pm

1 stop34h 37m

Chicago O'Hare Intl

Fri 2/26

3:35 pm-5:10 pm

1 stop34h 35m

$1,142

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Thu 11/26

7:40 pm-12:47 pm

1 stop32h 07m

Chicago O'Hare Intl

Wed 12/2

11:10 am-5:15 pm

Nonstop15h 05m

$1,420

Quickest round-trip

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Mon 10/26

10:40 am-9:30 am

Nonstop12h 50m

Chicago O'Hare Intl

Mon 11/2

6:00 pm-5:45 pm

1 stop32h 45m

$1,421

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Fri 12/4

8:00 pm-4:47 pm

2 stops35h 47m

Chicago O'Hare Intl

Wed 1/27

2:13 pm-5:35 pm

2 stops36h 22m

$1,430

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Fri 12/4

8:00 pm-4:47 pm

2 stops35h 47m

Chicago O'Hare Intl

Sat 1/30

7:40 am-5:35 pm

2 stops42h 55m

$1,430

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Mon 12/21

12:45 pm-7:05 pm

2 stops21h 20m

Chicago O'Hare Intl

Mon 1/18

11:29 am-5:40 am

2 stops27h 11m

$1,559

IncheonChicago

ICN Incheon Intl - ORD Chicago O'Hare Intl

ICNORD

Incheon Intl

Mon 10/12

4:50 pm-11:00 pm

1 stop20h 10m

Chicago O'Hare Intl

Sat 12/26

9:47 pm-4:25 pm

1 stop27h 38m

$1,607

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 Seoul 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 Seoul is in December. Flight prices, which tend to average around $771, 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 December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $797.

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

The cheapest day to depart from Seoul to Illinois is on a Wednesday when prices can be found for as low as $1,322. Flights from Seoul to Illinois on a Thursday will generally be more expensive and average around $1,680. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Seoul to Illinois flight route?

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

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

You are more likely to see cheaper flights to Illinois from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $1,315 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Seoul for as low as $896 on momondo.

What cabin class options are available on Seoul to Illinois flights?

There are 2 cabin classes available to choose from on Seoul 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 Seoul to Illinois flights?

You could potentially save up to 18% on your flight if you consider stops on a Seoul to Illinois flight.

Cheap Seoul to Illinois flight deals and tips

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

Best Price Found	$515
Fastest flight time	12h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Seoul in the past 72 hours is $515. The best round-trip flight deal from Seoul to Illinois found on momondo in the last 72 hours is $831.

The fastest flight from Seoul to Illinois takes 12h 50m

Direct flights go from Seoul to Illinois every day.

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

Search flight deals

Frequently asked questions about flying from Seoul to Illinois

When did momondo last update prices for flights from Seoul to Illinois?
Prices for flights from Seoul to Illinois were last updated today.
How many operators does momondo search for flights from Seoul to Illinois?
There are 5 operators available for flights from Seoul to Illinois as of September 2026.
How old do you have to be to fly from Seoul to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seoul to Illinois?
Based on momondo bookings for flights between Seoul and Illinois, the leading plane model is Boeing 777-300ER, making up 76.50% of the total bookings. Other popular models include Airbus A380-800 with 7.10%, Airbus A380 with 6.01%, and Airbus A350-900 with 4.92%.

Best airlines flying from Seoul to Illinois

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

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $567	Free Cancellation	Rating 7.9 12,993 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 10,261 reviews	Search United Airlines flights
Air Canada	PriceFrom $707	Free Cancellation	Rating 7.1 11,707 reviews	Search Air Canada flights
Delta	PriceFrom $1,056	Free Cancellation	Rating 7.8 8,608 reviews	Search Delta flights
Korean Air	PriceFrom $1,276	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seoul to Illinois for you.

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

All flight searches from Seoul to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seoul to Illinois?

Once all potential Seoul to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Seoul to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Illinois

Flights to New Yorkfrom $56

Flights to Los Angelesfrom $53

Flights to Orlandofrom $49

Flights to Miamifrom $77

Flights to San Franciscofrom $43

Flights to Chicagofrom $63

Flights to Las Vegasfrom $44

Flights to Washington, D.C.from $45

Flights to Fort Lauderdalefrom $60

Flights to Bostonfrom $103

Flights to Atlantafrom $38

Flights to Dallasfrom $50

Cheap flights from Seoul to Illinois from $515

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Illinois departing on 11/11. 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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Philippine Airlines flights from Seoul to Illinois

Our best Philippine Airlines deals on Seoul to Illinois flight tickets

ANA flights from Seoul to Illinois

Our best ANA deals on Seoul to Illinois flight tickets

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Use the filters below to find and compare flights from Seoul to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Seoul 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 Seoul to Illinois flight route?

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

What cabin class options are available on Seoul to Illinois flights?

Can stopping save me money on Seoul to Illinois flights?

What is the cheapest airline that flies from Seoul to Illinois?

What airlines fly to Illinois?

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

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

How long is the flight from Seoul to Illinois?

Cheap Seoul to Illinois flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from Seoul to Illinois

Best airlines flying from Seoul to Illinois

Compare and see reviews for airlines that fly from Seoul 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

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

Seoul flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

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