What airlines fly to Incheon Intl Airport?

Korean Air, EVA Air and Delta are the top three most popular airlines that fly to Incheon Intl Airport from Illinois 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 Incheon Intl Airport. Keep in mind that there are 10 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to Incheon Intl?

United Airlines, Delta, and Cathay Pacific are the most popular carriers operating from Illinois to Incheon Intl

How many flights depart from Illinois to Incheon Intl Airport on average per day?

As of March 2026, 1 flights take off from Illinois and land in Incheon Intl Airport each day. The most common flight departure time for this route is 12:00PM, with 100% of daily flights taking off in the afternoon.

How many flights depart from Illinois to Incheon Intl Airport on average per week?

As of March 2026, 12 flights take off from Illinois and land in Incheon Intl Airport each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

How long does it take to fly to Incheon Intl Airport?

On average, it takes 15h 47m to fly from Illinois to Incheon Intl Airport if you fly out of Chicago (the most popular airport in Illinois) and into Incheon Intl Airport (the most popular airport in Incheon Intl Airport). If you’re flying out of Moline and into Incheon Intl Airport, then the flight time is around 24h 47m.

When did momondo last update prices for flights from Illinois to Incheon Intl Airport?

Prices for flights from Illinois to Incheon Intl Airport were last updated today.

How many operators does momondo search for flights from Illinois to Incheon Intl Airport?

As of March 2026, there are 10 operators available to choose from for flights from Illinois to Incheon Intl Airport.

How old do you have to be to fly from Illinois to Incheon Intl Airport?

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 Incheon Intl Airport.

What documentation or ID do you need to fly to Incheon Intl Airport?

The travel and health documents required for your trip to Incheon Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Incheon Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$417 Cheap Flights from Illinois to Incheon Intl Airport in 2026

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Find the cheapest flights from Illinois to Seoul

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 pm - 5:40 pm

ORD

ICN

31h 30m

1 stop

10:45 am - 11:05 am

ICN

ORD

38h 20m

1 stop

$947Turkish Airlines

Sun, Aug 30 - Mon, Oct 26

5:15 am - 3:50 pm

ORD

ICN

20h 35m

1 stop

1:00 pm - 10:04 pm

ICN

ORD

23h 04m

1 stop

$951Multiple Airlines

Mon, Apr 20 - Tue, May 5

4:05 pm - 5:30 pm

STL

ICN

35h 25m

1 stop

5:45 pm - 12:06 pm

ICN

STL

32h 21m

2 stops

$998Air Canada

Mon, Apr 6 - Tue, May 12

4:05 pm - 5:30 pm

STL

ICN

35h 25m

1 stop

7:05 pm - 12:06 pm

ICN

STL

31h 01m

1 stop

$1,035Air Canada

Mon, Apr 6 - Tue, May 12

9:16 am - 4:20 am

STL

ICN

29h 04m

2 stops

4:50 pm - 10:45 am

ICN

STL

31h 55m

2 stops

$1,063United Airlines

Sat, Apr 4 - Fri, Apr 17

6:48 am - 4:25 pm

STL

ICN

19h 37m

1 stop

7:20 pm - 12:25 am

ICN

STL

19h 05m

1 stop

$1,066Delta

Wed, Apr 15 - Wed, Apr 22

7:00 am - 4:50 pm

STL

ICN

19h 50m

2 stops

7:20 pm - 12:25 am

ICN

STL

19h 05m

1 stop

$1,071Delta

Wed, Apr 15 - Wed, Apr 22

6:11 pm - 3:45 pm

STL

ICN

31h 34m

1 stop

5:50 pm - 10:59 pm

ICN

STL

19h 09m

1 stop

$1,073American Airlines

Sat, May 2 - Tue, May 12

6:11 pm - 3:45 pm

STL

ICN

31h 34m

1 stop

5:50 pm - 11:56 pm

ICN

STL

20h 06m

2 stops

$1,077American Airlines

Sat, May 2 - Tue, May 12

3:44 pm - 4:20 am

MLI

ICN

22h 36m

2 stops

4:50 pm - 9:54 am

ICN

MLI

31h 04m

2 stops

$1,177United Airlines

Sat, Aug 29 - Mon, Sep 7

EVA Air flights from Illinois to Incheon Intl Airport

Our best EVA Air deals on Illinois to Incheon Intl Airport flight tickets

EVA Air

Sep 1

ORD12:30 amChicago O'Hare Intl

20h 30m

1 stop

ICN11:00 amIncheon Intl

Sep 7

ICN12:00 pmIncheon Intl

22h 45m

1 stop

ORD8:45 pmChicago O'Hare Intl

$1,005

EVA Air

Sep 2

ORD12:30 amChicago O'Hare Intl

20h 30m

1 stop

ICN11:00 amIncheon Intl

Oct 1

ICN12:00 pmIncheon Intl

22h 45m

1 stop

ORD8:45 pmChicago O'Hare Intl

$1,011

EVA Air

Aug 31

ORD12:30 amChicago O'Hare Intl

20h 30m

1 stop

ICN11:00 amIncheon Intl

Oct 27

ICN11:40 amIncheon Intl

22h 55m

1 stop

ORD8:35 pmChicago O'Hare Intl

$1,018

Alaska Airlines flights from Illinois to Incheon Intl Airport

Our best Alaska Airlines deals on Illinois to Incheon Intl Airport flight tickets

Alaska Airlines

Jul 27

STL6:00 amLambert-St Louis

21h 30m

1 stop

ICN5:30 pmIncheon Intl

Aug 16

ICN7:35 pmIncheon Intl

32h 20m

1 stop

STL1:55 pmLambert-St Louis

$1,181

Alaska Airlines

Jul 26

STL7:56 pmLambert-St Louis

31h 34m

1 stop

ICN5:30 pmIncheon Intl

Aug 16

ICN7:35 pmIncheon Intl

32h 20m

1 stop

STL1:55 pmLambert-St Louis

$1,191

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 8/30

8:10 pm-5:40 pm

1 stop31h 30m

Incheon Intl

Mon 10/26

10:45 am-11:05 am

1 stop38h 20m

$947

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 4/20

5:15 am-3:50 pm

1 stop20h 35m

Incheon Intl

Tue 5/5

1:00 pm-10:04 pm

1 stop23h 04m

$951

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 4/6

4:05 pm-5:30 pm

1 stop35h 25m

Incheon Intl

Tue 5/12

5:45 pm-12:06 pm

2 stops32h 21m

$998

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 4/6

4:05 pm-5:30 pm

1 stop35h 25m

Incheon Intl

Tue 5/12

7:05 pm-12:06 pm

1 stop31h 01m

$1,035

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 4/4

9:16 am-4:20 am

2 stops29h 04m

Incheon Intl

Fri 4/17

4:50 pm-10:45 am

2 stops31h 55m

$1,063

Quickest round-trip

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/15

6:48 am-4:25 pm

1 stop19h 37m

Incheon Intl

Wed 4/22

7:20 pm-12:25 am

1 stop19h 05m

$1,066

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Wed 4/15

7:00 am-4:50 pm

2 stops19h 50m

Incheon Intl

Wed 4/22

7:20 pm-12:25 am

1 stop19h 05m

$1,071

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 5/2

6:11 pm-3:45 pm

1 stop31h 34m

Incheon Intl

Tue 5/12

5:50 pm-10:59 pm

1 stop19h 09m

$1,073

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 5/2

6:11 pm-3:45 pm

1 stop31h 34m

Incheon Intl

Tue 5/12

5:50 pm-11:56 pm

2 stops20h 06m

$1,077

MolineIncheon

MLI - ICN

MLIICN

Moline Quad-City

Sat 8/29

3:44 pm-4:20 am

2 stops22h 36m

Incheon Intl

Mon 9/7

4:50 pm-9:54 am

2 stops31h 04m

$1,177

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 Incheon Intl Airport

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 Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Illinois is in August. Flight prices, which tend to average around $760, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of August, then departing from Illinois during the month October is also very affordable. Most momondo users find prices during this month for around $1,147.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Illinois to Incheon Intl Airport is on a Monday when prices can be found for as low as $886. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,095. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the morning is the cheapest time of day to fly from Illinois to Incheon Intl Airport when you can find flight prices for as low as $974. Flying to Incheon Intl Airport in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $982 on average. Flights to Incheon Intl Airport 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 Incheon Intl flight route?

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

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,500 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Illinois for as low as $857 on momondo.

What cabin class options are available on Illinois to Incheon Intl flights?

There are 4 cabin classes available to choose from on Illinois to Incheon Intl 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 Illinois to Incheon Intl Airport flights?

You could potentially save up to 19% on your flight if you consider stops on a Illinois to Incheon Intl Airport flight.

Cheap Illinois to Incheon Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Incheon Intl Airport

Best Price Found	$534
Fastest flight time	14h 20m
Direct flights	Every day

The best one-way flight to Incheon Intl Airport from Illinois in the past 72 hours is $534. The best round-trip flight deal from Illinois to Incheon Intl Airport found on momondo in the last 72 hours is $832.

The fastest flight from Illinois to Incheon Intl Airport takes 14h 20m

Direct flights go from Illinois to Incheon Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Illinois to Incheon Intl Airport?
Prices for flights from Illinois to Incheon Intl Airport were last updated today.
How many operators does momondo search for flights from Illinois to Incheon Intl Airport?
As of March 2026, there are 10 operators available to choose from for flights from Illinois to Incheon Intl Airport.
How old do you have to be to fly from Illinois to Incheon Intl Airport?
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 Incheon Intl Airport.
What documentation or ID do you need to fly to Incheon Intl Airport?
The travel and health documents required for your trip to Incheon Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Incheon Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Incheon Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Incheon Intl Airport is Boeing 777-300ER, representing 93.59% of all bookings. The subsequent popular models are Airbus A350-900 at 2.14%, Boeing 747-8 at 0.71%, and Boeing 787-10 Dreamliner at 0.71%.

Best airlines flying from Illinois to Incheon Intl Airport

Compare and see reviews for airlines that fly from Illinois to Incheon Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,326 reviews	Search Delta flights
United Airlines	PriceFrom $287	Free Cancellation	Rating 7.4 9,478 reviews	Search United Airlines flights
Cathay Pacific	PriceFrom $639	Free Cancellation	Rating 7.6 1,228 reviews	Search Cathay Pacific flights
Turkish Airlines	PriceFrom $877	Free Cancellation	Rating 7.4 4,275 reviews	Search Turkish Airlines flights
American Airlines	PriceFrom $915	Free Cancellation	Rating 7.1 11,492 reviews	Search American Airlines flights
Japan Airlines	PriceFrom $931	Free Cancellation	Rating 8.3 1,748 reviews	Search Japan Airlines flights
EVA Air	PriceFrom $948	Free Cancellation	Rating 8.5 1,390 reviews	Search EVA Air flights
Air Canada	PriceFrom $1,072	Free Cancellation	Rating 7.1 10,838 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $1,234	Free Cancellation	Rating 8.1 506 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $1,594	Free Cancellation	Rating 8.4 1,202 reviews	Search Korean Air flights

Suwon

Daejeon

Seongnam

Anyang

Why use momondo?

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

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 Illinois to Seoul for you.

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

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

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

Once all potential Illinois to Seoul 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 Illinois to Seoul right now. Can momondo alert me if prices change?

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

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Cheap flights from Illinois to Seoul from $417

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 Seoul departing on 4/26. 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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EVA Air flights from Illinois to Incheon Intl Airport

Our best EVA Air deals on Illinois to Incheon Intl Airport flight tickets

Alaska Airlines flights from Illinois to Incheon Intl Airport

Our best Alaska Airlines deals on Illinois to Incheon Intl Airport flight tickets

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

See travel insights to Seoul from

How to get the cheapest flight ticket from Illinois to Incheon Intl Airport

What is the cheapest month to fly to Incheon Intl Airport?

What is the cheapest day to depart on your flight to Incheon Intl Airport?

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

What is the cheapest Illinois to Incheon Intl flight route?

How far in advance should I book a flight to Incheon Intl Airport?

What cabin class options are available on Illinois to Incheon Intl flights?

Can stopping save me money on Illinois to Incheon Intl Airport flights?

What is the cheapest airline that flies from Illinois to Incheon Intl?

What airlines fly to Incheon Intl Airport?

How many flights depart from Illinois to Incheon Intl Airport on average per day?

How many flights depart from Illinois to Incheon Intl Airport on average per week?

How long does it take to fly to Incheon Intl Airport?

Cheap Illinois to Incheon Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Incheon Intl Airport

Best Price Found

Fastest flight time

Direct flights

Best airlines flying from Illinois to Incheon Intl Airport

Compare and see reviews for airlines that fly from Illinois to Incheon Intl Airport with momondo

Traveling to a place near Seoul?

Why use momondo?

An easier way to manage your Incheon Intl Airport trip

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

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According to popular flight searches on momondo this year

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