Illinois

$378+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ORD
Nov 26 — Dec 31
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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 November 21, 2024.

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 November 21, 2024.

This United Airlines deal was found by Cheapflights users on 11/21. 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 11/256:00 pmICN - ORD
1 stop37h 55mUnited Airlines
Thu 11/282:00 pmORD - ICN
2 stops35h 15mUnited Airlines
Deal found 11/21$565
This American Airlines deal was found by Cheapflights users on 11/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:50 pmICN - ORD
1 stop17h 29mAmerican Airlines
Thu 1/235:00 amORD - ICN
1 stop20h 45mAmerican Airlines
Deal found 11/21$768
This Air Canada deal was found by Cheapflights users on 11/21. 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.
Mon 11/256:20 pmICN - ORD
1 stop35h 19mAir Canada
Thu 11/283:40 pmORD - ICN
1 stop34h 05mAir Canada
Deal found 11/21$787
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Tue 12/1712:45 pmICN - STL
1 stop20h 11mUnited Airlines
Sat 1/45:27 pmSTL - ICN
2 stops31h 48mUnited Airlines
Deal found 11/20$912
This Kiwi.com deal was found by Cheapflights users on 11/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/59:55 pmICN - ORD
1 stop17h 39mMultiple Airlines
Fri 12/66:33 pmORD - ICN
2 stops50h 02mMultiple Airlines
Deal found 11/21$932
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Tue 12/176:50 pmICN - STL
1 stop36h 44mAmerican Airlines
Sat 1/45:29 pmSTL - ICN
1 stop32h 16mAmerican Airlines
Deal found 11/20$986
This Trip.com deal was found by Cheapflights users on 11/20. 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.
Sat 12/77:50 amGMP - ORD
1 stop14h 35mJapan Airlines
Wed 12/117:30 amORD - GMP
2 stops23h 50mJapan Airlines
Deal found 11/20$1,273
This Kiwi.com deal was found by Cheapflights users on 11/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/256:55 pmICN - MDW
2 stops31h 15mMultiple Airlines
Sat 11/307:17 pmMDW - ICN
1 stop31h 18mMultiple Airlines
Deal found 11/21$1,344
This Delta deal was found by Cheapflights users on 11/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/257:30 pmICN - MDW
1 stop28h 21mDelta
Sat 11/302:17 pmMDW - ICN
1 stop34h 13mDelta
Deal found 11/21$1,347
This Gotogate deal was found by Cheapflights users on 11/20. 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.
Thu 12/267:50 pmGMP - ORD
1 stop26h 30mANA
Mon 1/134:25 pmORD - GMP
1 stop27h 55mANA
Deal found 11/20$1,361
This Mytrip deal was found by Cheapflights users on 11/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/48:15 pmGMP - ORD
1 stop38h 20mEVA Air
Wed 12/113:35 pmORD - GMP
2 stops30h 15mEVA Air
Deal found 11/21$1,450
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Sat 12/712:05 pmGMP - ORD
2 stops20h 23mMultiple Airlines
Wed 12/116:35 amORD - GMP
2 stops24h 45mMultiple Airlines
Deal found 11/20$1,455

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Sat 2/1

12:45 pm-11:01 am

3 stops37h 16m

Chicago O'Hare Intl

Thu 2/6

8:25 pm-4:15 pm

1 stop28h 50m

$665

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Tue 3/4

6:50 pm-11:47 pm

1 stop19h 57m

Chicago O'Hare Intl

Tue 3/25

5:00 am-3:55 pm

1 stop20h 55m

$718

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Tue 1/28

4:55 pm-2:39 pm

1 stop36h 44m

Chicago O'Hare Intl

Thu 1/30

3:40 pm-3:15 pm

1 stop32h 35m

$787

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 3/3

6:50 pm-11:57 pm

2 stops20h 07m

Lambert-St Louis

Mon 3/17

6:23 pm-3:55 pm

2 stops31h 32m

$819

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 3/3

4:55 pm-3:06 pm

2 stops37h 11m

Lambert-St Louis

Tue 3/18

3:50 pm-3:25 pm

2 stops33h 35m

$831

IncheonSt. Louis

ICN - STL

ICNSTL

Incheon Intl

Mon 2/10

12:45 pm-6:09 pm

1 stop20h 24m

Lambert-St Louis

Fri 2/14

9:00 am-5:40 am

1 stop29h 40m

$833

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Wed 3/19

7:50 am-7:40 pm

2 stops25h 50m

Chicago O'Hare Intl

Tue 9/30

12:05 pm-10:00 pm

1 stop19h 55m

$929

IncheonChicago

ICN - ORD

ICNORD

Incheon Intl

Thu 12/5

9:55 pm-12:34 am

1 stop17h 39m

Chicago O'Hare Intl

Fri 12/6

6:33 pm-11:35 am

2 stops50h 02m

$932

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Wed 3/19

12:05 pm-7:40 pm

2 stops21h 35m

Chicago O'Hare Intl

Tue 9/30

8:05 am-10:00 pm

2 stops23h 55m

$934

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Wed 3/19

12:25 pm-8:20 am

1 stop33h 55m

Chicago O'Hare Intl

Tue 9/30

5:45 pm-11:05 am

1 stop27h 20m

$946

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

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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 November 21, 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 November 21, 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 November 21, 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.
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.5
Very good
1,024 reviews
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.4
Very good
1,308 reviews
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.4
Very good
833 reviews
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.3
Very good
1,457 reviews
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.3
Very good
476 reviews
8.5
Very good
1,024 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

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?

    $469 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $511 and $562, 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.

Top 4 airlines flying from South Korea to Illinois

Discover the top 4 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$697Average$992FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,089Average$1,481FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,194Average$1,504FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,314Average$1,652FlexibilityNo cancel feeOn-timeN/A
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