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Incheon Intl

$451+ Cheap flights from Illinois to Incheon Intl (ICN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ICN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Illinois to Incheon Intl

Keep the following information in mind while searching for Illinois to Incheon Intl flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,106
(Turkish Airlines)

One-way from

$451
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,186

Good round-trip deal

$961 or less

Good one-way deal

$543 or less
Provider with most accurate pricing for Chicago (CHI)-Seoul (SEL) flight deals.
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From Illinois to Incheon Intl
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One-way flight from Illinois to Incheon Intl
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Highest demand for flights based on searches. 4% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Illinois to Incheon Intl.
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Price to beat on a one-way flight from Illinois to Incheon Intl.
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Find flight deals from Illinois to Incheon Intl

Cheapest flights from Illinois to Incheon Intl
Explore the most affordable flight options available from Illinois to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Turkish Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2911:25 amORD - ICN
1 stop40h 15mTurkish Airlines
Sat 5/1010:20 amICN - ORD
1 stop37h 20mTurkish Airlines
Deal found 3/27$1,106
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:46 pmORD - ICN
2 stops33h 59mMultiple Airlines
Fri 6/610:00 pmICN - ORD
1 stop22h 42mMultiple Airlines
Deal found 3/26$1,110
This Gurufare deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1012:30 amORD - ICN
1 stop20h 30mEVA Air
Tue 9/1612:00 pmICN - ORD
1 stop22h 45mEVA Air
Deal found 3/26$1,111
This Cathay Pacific deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/304:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Tue 5/138:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 3/27$1,114
This CheapTickets.ch deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:15 amMDW - ICN
2 stops24h 15mMultiple Airlines
Sun 5/186:20 pmICN - MDW
2 stops38h 48mMultiple Airlines
Deal found 3/26$1,203
This Priceline deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:30 pmSTL - ICN
2 stops36h 35mAir Canada
Thu 10/305:50 pmICN - STL
2 stops35h 36mAir Canada
Deal found 3/27$1,249
This EVA Air deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/13:17 pmSTL - ICN
2 stops29h 43mMultiple Airlines
Thu 9/1112:00 pmICN - STL
2 stops40h 17mMultiple Airlines
Deal found 3/27$1,258
This LOT deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:55 pmORD - ICN
1 stop42h 15mLOT
Tue 1/2012:35 pmICN - ORD
1 stop46h 25mLOT
Deal found 3/27$1,259
This WestJet deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/186:00 amSTL - ICN
2 stops46h 45mWestJet
Sat 5/248:45 pmICN - STL
2 stops40h 41mWestJet
Deal found 3/26$1,317
This Fareboom deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/133:17 pmSTL - ICN
2 stops29h 43mEVA Air
Sat 9/277:45 pmICN - STL
2 stops32h 32mEVA Air
Deal found 3/27$1,425
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:30 amMLI - ICN
1 stop19h 00mAmerican Airlines
Sun 5/185:25 pmICN - MLI
1 stop17h 59mAmerican Airlines
Deal found 3/27$1,486
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:56 pmMLI - ICN
2 stops33h 04mUnited Airlines
Sun 5/1811:30 amICN - MLI
2 stops23h 18mUnited Airlines
Deal found 3/27$1,495

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Illinois to Incheon Intl Airport that are best for you.

Fly from

Illinois

Fly to

Incheon Intl

Route

Depart

Return

Price

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 4/29

11:25 am-5:40 pm

1 stop40h 15m

Incheon Intl

Sat 5/10

10:20 am-9:40 am

1 stop37h 20m

$1,106

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Thu 5/29

6:46 pm-6:45 pm

2 stops33h 59m

Incheon Intl

Fri 6/6

10:00 pm-6:42 am

1 stop22h 42m

$1,110

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 4/13

12:30 am-11:00 am

1 stop20h 30m

Incheon Intl

Thu 5/8

12:00 pm-9:00 pm

1 stop23h 00m

$1,112

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 4/30

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Tue 5/13

8:05 pm-2:25 pm

1 stop32h 20m

$1,114

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 6/1

5:30 pm-6:45 pm

1 stop35h 15m

Incheon Intl

Thu 6/19

8:45 pm-12:39 pm

2 stops53h 54m

$1,142

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Sun 5/11

6:15 am-8:30 pm

2 stops24h 15m

Incheon Intl

Sun 5/18

6:20 pm-7:08 pm

2 stops38h 48m

$1,203

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 9/1

3:17 pm-11:00 am

2 stops29h 43m

Incheon Intl

Thu 9/11

12:00 pm-2:17 pm

2 stops40h 17m

$1,258

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Mon 9/1

1:30 pm-4:20 pm

1 stop36h 50m

Incheon Intl

Thu 9/11

5:45 pm-3:16 pm

2 stops35h 31m

$1,271

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sun 5/18

6:00 am-6:45 pm

2 stops46h 45m

Incheon Intl

Sat 5/24

8:45 pm-11:26 pm

2 stops40h 41m

$1,317

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 9/13

3:17 pm-11:00 am

2 stops29h 43m

Incheon Intl

Sat 9/27

7:45 pm-2:17 pm

2 stops32h 32m

$1,425

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 47 results
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Best time to book a flight from Illinois to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Incheon Intl Airport

What is the cheapest month to book a flight from Illinois to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Illinois to Incheon Intl Airport (average of $1,002). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to ICN?

Find hourly flight availability from Illinois to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Incheon Intl Airport as you normally would.

Rainfall in Incheon Intl by month

Plan your trip to Incheon Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

Plan your trip to Incheon Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Incheon Intl. Reviews last updated March 28, 2025.
To help decide which airline to fly from Illinois to Seoul, see what other customers have to say about EVA Air, Korean Air and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,169 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,050 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Delta
8.0
Very good
7,896 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
KLM
7.8
Good
1,321 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Finnair
7.6
Good
1,267 reviews
EVA Air
8.4
Very good
1,169 reviews

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Incheon Intl Airport one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $465. Turkish Airlines flights start at $518 while deals on Cathay Pacific start at $579 one-way.

  • What are the most popular routes from Illinois to Incheon Intl Airport?

    The most popular route from Illinois to Incheon Intl Airport is Chicago O'Hare Intl - Incheon Intl. You may also consider Chicago Midway - Incheon Intl or Lambert-St Louis - Incheon Intl.

  • What are the most reliable airlines from Illinois to Incheon Intl Airport?

    Consider Delta (87%), Korean Air (83%) or Atlas Air (14%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Incheon Intl Airport.

  • What are the cheapest flights from Illinois to Incheon Intl Airport?

    Looking for the cheapest flight from Illinois to Incheon Intl Airport? While on average our users pay $2,829, our data indicates the cheapest price to be $485. The most popular route (Chicago O'Hare Intl - Incheon Intl), is priced around $833.

  • Can I find deals for flights from Illinois to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Illinois to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Incheon Intl.

  • Can I find deals for business class flights from Illinois to Incheon Intl?

    Yes. Cheapflights offers flight deals from Illinois to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Incheon Intl Airport (average of $1,002). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
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Alternative routes for Illinois to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Incheon Intl flights
John F Kennedy Intl to Incheon Intl flights
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Dallas/Fort Worth to Incheon Intl flights
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Los Angeles to Gimpo Intl flights
LaGuardia to Incheon Intl flights
John F Kennedy Intl to Gimpo Intl flights
O'Hare Intl to Incheon Intl flights
San Francisco to Gimpo Intl flights
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Reagan-National to Incheon Intl flights
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Dulles Intl to Gimpo Intl flights
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Dallas/Fort Worth to Gimpo Intl flights
Minneapolis to Incheon Intl flights
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Reagan-National to Gimpo Intl flights
Detroit to Incheon Intl flights
O'Hare Intl to Gimpo Intl flights
Love Field to Incheon Intl flights
Philadelphia to Incheon Intl flights
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Las Vegas to Incheon Intl flights
Midway to Incheon Intl flights
Orlando to Incheon Intl flights
George Bush Intcntl to Incheon Intl flights
Boston to Gimpo Intl flights
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Atlanta to Gimpo Intl flights
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Denver to Incheon Intl flights
LaGuardia to Gimpo Intl flights
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Sky Harbor Intl to Incheon Intl flights
Charlotte to Incheon Intl flights
Portland to Incheon Intl flights
Miami to Incheon Intl flights
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Nashville to Incheon Intl flights

Top 10 airlines flying from Illinois to Incheon Intl

Discover the top 10 airlines that operate flights from Illinois to Incheon Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$848Average$1,053FlexibilityNo cancel feeOn-time77%
Cathay PacificCheapest$873Average$1,101FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$891Average$1,312FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$895Average$1,229FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$906Average$1,184FlexibilityNo cancel feeOn-time69%
EVA AirCheapest$1,059Average$1,245FlexibilityNo cancel feeOn-time74%
FinnairCheapest$1,110Average$1,503FlexibilityNo cancel feeOn-time76%
DeltaCheapest$1,271Average$1,827FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$1,271Average$1,728FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,522Average$1,806FlexibilityNo cancel feeOn-time81%
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