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$469+ Cheap flights from South Korea to Illinois

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ORD
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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Cheap flight deals from South Korea to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from South Korea (KR0) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 18, 2024.

Round-trip from

$560
(American Airlines)

One-way from

$469
(Kiwi.com)
From South Korea to Illinois
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One-way flight from South Korea to Illinois
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Find flight deals from South Korea to Illinois

Cheapest flights from South Korea to Illinois
Explore the most affordable flight options available from South Korea to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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.
lun. 12/236:50 pmICN - ORD
1 stop19h 19mAmerican Airlines
jue. 1/238:50 pmORD - ICN
2 stops28h 55mAmerican Airlines
Deal found 12/17$757
This United Airlines deal was found by Cheapflights users on 12/16. 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.
mar. 12/2412:45 pmICN - STL
1 stop26h 43mUnited Airlines
lun. 12/306:25 amSTL - ICN
2 stops32h 15mUnited Airlines
Deal found 12/16$834
This Gotogate deal was found by Cheapflights users on 12/16. 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.
mié. 12/188:10 pmICN - ORD
1 stop32h 01mAir Canada
jue. 1/233:40 pmORD - ICN
1 stop32h 35mAir Canada
Deal found 12/16$918
This Gotogate deal was found by Cheapflights users on 12/16. 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.
jue. 12/197:45 amGMP - ORD
1 stop21h 05mANA
mié. 1/224:25 pmORD - GMP
1 stop39h 05mANA
Deal found 12/16$944
This United Airlines deal was found by Cheapflights users on 12/17. 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.
lun. 12/2312:45 pmICN - ORD
1 stop32h 09mUnited Airlines
lun. 1/61:10 pmORD - ICN
1 stop35h 45mUnited Airlines
Deal found 12/17$1,044
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1910:35 amICN - ORD
2 stops24h 20mMultiple Airlines
mié. 1/227:05 amORD - ICN
1 stop20h 20mMultiple Airlines
Deal found 12/16$1,145
This FlightHub deal was found by Cheapflights users on 12/17. 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.
jue. 12/192:40 pmICN - ORD
1 stop24h 19mAsiana Airlines
jue. 1/163:35 pmORD - ICN
1 stop22h 45mAsiana Airlines
Deal found 12/17$1,156
This Gotogate deal was found by Cheapflights users on 12/17. 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.
mar. 12/247:45 pmICN - ORD
1 stop38h 50mEVA Air
dom. 3/2312:30 amORD - ICN
1 stop20h 00mEVA Air
Deal found 12/17$1,191
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/207:30 pmICN - ORD
1 stop32h 15mDelta
jue. 2/611:25 amORD - ICN
Nonstop14h 50mDelta
Deal found 12/16$1,278
This Gotogate deal was found by Cheapflights users on 12/17. 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.
mié. 12/2510:40 amICN - ORD
Nonstop12h 50mKorean Air
mié. 1/111:25 amORD - ICN
Nonstop14h 50mKorean Air
Deal found 12/17$1,282
This Gotogate deal was found by Cheapflights users on 12/17. 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.
vie. 12/271:50 pmGMP - ORD
1 stop20h 45mEVA Air
jue. 6/1212:30 amORD - GMP
1 stop22h 20mEVA Air
Deal found 12/17$1,331
This Gotogate deal was found by Cheapflights users on 12/18. 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.
mié. 12/259:20 amICN - ORD
2 stops49h 40mLOT
mar. 12/319:55 pmORD - ICN
1 stop42h 15mLOT
Deal found 12/18$1,337

Find flights from South Korea to Illinois within your budget

Customize your flight search to find flights from South Korea to Illinois 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 diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IncheonChampaign

ICN - CMI

ICNCMI

Incheon Intl

mié. 2/5

6:50 pm-8:39 pm

1 stop16h 49m

Champaign University-Willard

mié. 2/19

12:27 pm-4:45 pm

2 stops37h 18m

$560

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

mié. 2/19

12:45 pm-7:45 am

2 stops34h 00m

Chicago O'Hare Intl

jue. 2/20

2:25 pm-4:15 pm

1 stop34h 50m

$726

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

mar. 1/28

6:50 pm-7:11 am

2 stops27h 21m

Chicago O'Hare Intl

vie. 1/31

6:30 am-4:45 pm

1 stop19h 15m

$757

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

jue. 1/30

1:20 pm-11:44 pm

2 stops25h 24m

Chicago O'Hare Intl

sáb. 2/8

6:20 am-4:10 pm

2 stops42h 50m

$773

IncheonChicago

ICN - MDW

ICNMDW

Incheon Intl

jue. 1/30

1:20 pm-12:17 am

2 stops25h 57m

Chicago Midway

sáb. 2/8

7:30 am-4:10 pm

2 stops41h 40m

$773

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

vie. 1/31

6:50 pm-10:56 pm

1 stop19h 06m

Lambert-St Louis

vie. 2/7

5:03 am-4:45 pm

1 stop20h 42m

$811

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

mar. 2/11

6:00 pm-10:47 am

2 stops31h 47m

Lambert-St Louis

vie. 2/14

1:39 pm-5:40 am

2 stops25h 01m

$833

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

mié. 2/12

7:50 am-7:41 pm

2 stops26h 51m

Chicago O'Hare Intl

mar. 2/18

10:35 am-6:20 pm

1 stop16h 45m

$863

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

jue. 4/24

5:45 pm-12:31 pm

1 stop32h 46m

Chicago O'Hare Intl

jue. 5/1

8:25 pm-4:05 pm

2 stops29h 40m

$871

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

mié. 2/12

7:50 pm-7:20 am

1 stop26h 30m

Chicago O'Hare Intl

mar. 2/18

4:25 pm-11:20 am

1 stop27h 55m

$907

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 59 results
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Best time to book a flight from South Korea to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from South Korea 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 South Korea to Illinois

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

What is the cheapest month to book a flight from South Korea to Illinois?

Currently, September is the cheapest month in which you can book a flight from South Korea to Illinois (average of $232). Flying from South Korea to Illinois in June is currently the most expensive (average of $308). 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 KR to IL?

Find hourly flight availability from South Korea to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 18, 2024.

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

Weekly flight availability from South Korea to Illinois

Explore weekly flight availability from South Korea to Illinois. 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 diciembre 18, 2024.

The most flights from KR0 to USIL 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 Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated diciembre 18, 2024.
Read through reviews of airlines operating flights from South Korea to Illinois, such as American Airlines, Korean Air and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very good
1,269 reviews
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

ANA
8.4
Very good
839 reviews
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Korean Air
8.4
Very good
1,018 reviews
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Japan Airlines
8.3
Very good
1,443 reviews
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Delta
8.0
Very good
8,604 reviews
EVA Air
8.4
Very good
1,269 reviews

Food

8.0

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Related info for your journey

Find useful and relevant information for your journey from South Korea to Illinois. 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 South Korea to Illinois one-way?

    $509 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and EVA Air, with prices starting from $649 and $668, respectively.

  • Can I find deals for flights from South Korea to Illinois that include hotel bookings?

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

  • How can I find direct flights from South Korea to Illinois?

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

  • Can I find deals for business class flights from South Korea to Illinois?

    Yes. Cheapflights offers flight deals from South Korea to Illinois 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 South Korea to Illinois?

    Currently, September is the cheapest month in which you can book a flight from South Korea to Illinois (average of $232). Flying from South Korea to Illinois in June is currently the most expensive (average of $308). 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 South Korea to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from South Korea to Illinois

Discover the top 5 airlines that operate flights from South Korea to Illinois. 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 diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$697Average$992FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$820Average$1,038FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,089Average$1,481FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,194Average$1,492FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,269Average$1,532FlexibilityNo cancel feeOn-timeN/A
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