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Incheon Intl

$460+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ICN
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,020
(FlightHub)

One-way from

$460
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$1,469

Good round-trip deal

$1,044 or less

Good one-way deal

$532 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 ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 22, 2025.

This FlightHub deal was found by Cheapflights users on 2/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/104:00 pmORD - ICN
1 stop37h 05mCathay Pacific
Sat 5/248:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 2/21$1,020
This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1010:49 amORD - ICN
3 stops34h 51mMultiple Airlines
Fri 3/1410:40 amICN - ORD
2 stops32h 05mMultiple Airlines
Deal found 2/22$1,024
This Trip.com deal was found by Cheapflights users on 2/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:45 amMDW - ICN
2 stops43h 00mMultiple Airlines
Tue 4/1512:50 pmICN - MDW
2 stops25h 31mMultiple Airlines
Deal found 2/22$1,027
This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/811:55 amORD - ICN
1 stop30h 10mTurkish Airlines
Sun 3/1612:10 amICN - ORD
1 stop25h 00mTurkish Airlines
Deal found 2/22$1,028
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2712:30 amORD - ICN
1 stop20h 30mEVA Air
Mon 5/1212:00 pmICN - ORD
1 stop23h 00mEVA Air
Deal found 2/22$1,080
This Gotogate deal was found by Cheapflights users on 2/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:30 pmORD - ICN
1 stop35h 15mWestJet
Fri 6/138:45 pmICN - ORD
1 stop33h 59mWestJet
Deal found 2/22$1,118
This Priceline deal was found by Cheapflights users on 2/22. 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.
Sat 4/53:30 pmSTL - ICN
2 stops34h 35mMultiple Airlines
Sat 4/128:45 pmICN - STL
2 stops40h 19mMultiple Airlines
Deal found 2/22$1,136
This Air Canada deal was found by Cheapflights users on 2/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/83:30 pmSTL - ICN
1 stop36h 00mAir Canada
Tue 4/227:05 pmICN - STL
1 stop33h 44mAir Canada
Deal found 2/21$1,199
This WestJet deal was found by Cheapflights users on 2/21. 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.
Tue 4/1512:48 pmMDW - ICN
2 stops39h 57mWestJet
Mon 4/218:45 pmICN - MDW
2 stops34h 34mWestJet
Deal found 2/21$1,459
This oojo deal was found by Cheapflights users on 2/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:15 amSTL - ICN
2 stops40h 40mCathay Pacific
Sat 3/157:35 pmICN - STL
2 stops41h 34mCathay Pacific
Deal found 2/21$1,518
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/29:29 amSTL - ICN
2 stops40h 46mQatar Airways
Fri 3/712:20 amICN - STL
2 stops52h 05mQatar Airways
Deal found 2/22$1,625
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 12/87:05 amSTL - ICN
1 stop18h 10mUnited Airlines
Thu 1/812:45 pmICN - STL
1 stop20h 18mUnited Airlines
Deal found 2/21$1,672

Find flights from Illinois to Incheon Intl within your budget

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 February 22, 2025.

Fly from

Illinois

Fly to

Incheon Intl

Route

Depart

Return

Price

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 5/10

4:00 pm-7:05 pm

1 stop37h 05m

Incheon Intl

Sat 5/24

8:05 pm-2:25 pm

1 stop32h 20m

$1,020

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 3/10

10:49 am-11:40 am

3 stops34h 51m

Incheon Intl

Fri 3/14

10:40 am-4:45 am

2 stops32h 05m

$1,024

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Tue 4/8

6:45 am-3:45 pm

2 stops43h 00m

Incheon Intl

Tue 4/15

12:50 pm-12:21 am

2 stops25h 31m

$1,027

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 3/8

11:55 am-9:05 am

1 stop30h 10m

Incheon Intl

Sun 3/16

12:10 am-11:10 am

1 stop25h 00m

$1,028

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 4/27

12:30 am-11:00 am

1 stop20h 30m

Incheon Intl

Mon 5/12

12:00 pm-9:00 pm

1 stop23h 00m

$1,080

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 6/4

5:30 pm-6:45 pm

1 stop35h 15m

Incheon Intl

Fri 6/13

8:45 pm-4:44 pm

1 stop33h 59m

$1,118

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Sat 4/5

3:30 pm-4:05 pm

2 stops34h 35m

Incheon Intl

Sat 4/12

8:45 pm-11:04 pm

2 stops40h 19m

$1,136

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

Tue 4/8

3:30 pm-5:30 pm

1 stop36h 00m

Incheon Intl

Tue 4/22

7:05 pm-2:49 pm

1 stop33h 44m

$1,199

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 5/12

9:05 pm-4:05 pm

2 stops29h 00m

Incheon Intl

Wed 5/21

5:45 pm-2:43 pm

1 stop34h 58m

$1,215

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Tue 4/15

12:48 pm-6:45 pm

2 stops39h 57m

Incheon Intl

Mon 4/21

8:45 pm-5:19 pm

2 stops34h 34m

$1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 48 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.

Travel insights for flights from Illinois to Incheon Intl

Get recent, data-driven insights about flights from Illinois to Incheon Intl including ideal travel times, pricing trends, and more.

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 $1,036). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,697). 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 February 22, 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.

Weekly flight availability from Illinois to Incheon Intl Airport

Explore weekly flight availability from Illinois to Incheon Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 22, 2025.

The most flights from USIL to ICN are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 February 22, 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
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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
1,199 reviews
EVA Air
8.4
Very good
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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
1,036 reviews
EVA Air
8.4
Very good
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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
8,203 reviews
EVA Air
8.4
Very good
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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
1,332 reviews
EVA Air
8.4
Very good
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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.

Cathay Pacific
7.5
Good
821 reviews
EVA Air
8.4
Very good
1,199 reviews

Crew

8.6

Overall

8.4

Comfort

8.2

Food

8.0

Boarding

8.4

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 $512. Turkish Airlines flights start at $513 while deals on Cathay Pacific start at $582 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 (83%), Korean Air (43%) or Atlas Air (0%) 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 $2,598, our data indicates the cheapest price to be $479. The most popular route (Chicago O'Hare Intl - Incheon Intl), is priced around $831.

  • 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 $1,036). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,697). 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

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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
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Los Angeles to Gimpo Intl flights
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Seattle to Gimpo Intl flights
Ontario to Incheon Intl flights
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Honolulu to Incheon Intl flights
Dulles Intl to Gimpo Intl flights
San Jose to Incheon Intl flights
Dallas/Fort Worth to Gimpo Intl flights
Love Field to Incheon Intl flights
Oakland to Incheon Intl flights
Reagan-National to Gimpo Intl flights
Minneapolis to Incheon Intl flights
Detroit to Incheon Intl flights
Philadelphia to Incheon Intl flights
O'Hare Intl to Gimpo Intl flights
Las Vegas to Incheon Intl flights
Orlando to Incheon Intl flights
George Bush Intcntl to Incheon Intl flights
Tampa to Incheon Intl flights
Santa Ana to Incheon Intl flights
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Midway to Incheon Intl flights
Nashville to Incheon Intl flights
Sky Harbor Intl to Incheon Intl flights
LaGuardia to Gimpo Intl flights
Atlanta to Gimpo Intl flights
Kansas City to Incheon Intl flights
Charlotte to Incheon Intl flights
Miami to Incheon Intl flights
Baltimore to Gimpo Intl flights
Boston to Gimpo Intl flights
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Portland 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$848Average$1,057FlexibilityNo cancel feeOn-time77%
Cathay PacificCheapest$873Average$1,119FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$891Average$1,327FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$895Average$1,248FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$906Average$1,231FlexibilityNo cancel feeOn-time69%
EVA AirCheapest$1,064Average$1,291FlexibilityNo cancel feeOn-time74%
FinnairCheapest$1,110Average$1,500FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$1,272Average$1,728FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,538Average$1,817FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,591Average$1,822FlexibilityNo cancel feeOn-timeN/A
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