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$371+ Cheap flights from Chicago (CHI) to South Korea

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ICN
Oct 18 — Oct 251
Sat 10/18
Sat 10/25
1 adult, Economy
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Cheap flight deals from Chicago to South Korea

Keep the following information in mind while searching for Chicago to South Korea flight deals. Data was last updated September 18, 2025.

Round-trip from

$738
(oojo)

One-way from

$371
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,238

Good round-trip deal

$847 or less

Good one-way deal

$504 or less
From Chicago (CHI) to South Korea
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One-way flight from Chicago (CHI) to South Korea
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Highest demand for flights based on searches. 5% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago (CHI) to South Korea.
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Price to beat on a one-way flight from Chicago (CHI) to South Korea.
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Find flight deals from Chicago to South Korea

Cheapest flights from Chicago to South Korea
Explore the most affordable flight options available from Chicago to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2025.

This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:00 pmORD - ICN
1 stop32h 05mCathay Pacific
Tue 10/141:40 pmICN - ORD
1 stop38h 45mCathay Pacific
Deal found 9/17$738
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:00 pmORD - ICN
1 stop37h 05mCathay Pacific
Wed 11/123:00 pmICN - ORD
1 stop36h 55mCathay Pacific
Deal found 9/17$739
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:35 pmORD - ICN
1 stop31h 10mCathay Pacific
Tue 11/117:35 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 9/18$745
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:00 pmORD - ICN
1 stop32h 05mCathay Pacific
Mon 10/138:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 9/16$755
This Gotogate deal was found by Cheapflights users on 9/18. 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.
Wed 10/224:00 pmORD - ICN
1 stop37h 05mCathay Pacific
Wed 11/51:45 pmICN - ORD
1 stop38h 10mCathay Pacific
Deal found 9/18$760
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:30 pmORD - ICN
1 stop35h 15mMultiple Airlines
Thu 10/309:20 pmICN - ORD
2 stops30h 15mMultiple Airlines
Deal found 9/17$763
This Cathay Pacific deal was found by Cheapflights users on 9/17. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Tue 10/2810:00 amICN - ORD
1 stop41h 55mCathay Pacific
Deal found 9/17$765
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Mon 9/228:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 9/16$770
This FlightHub deal was found by Cheapflights users on 9/17. 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.
Wed 9/174:00 pmORD - ICN
1 stop37h 05mCathay Pacific
Wed 9/2410:10 amICN - ORD
1 stop42h 15mCathay Pacific
Deal found 9/17$776
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Tue 9/301:40 pmICN - ORD
1 stop38h 45mCathay Pacific
Deal found 9/17$777
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:45 pmORD - ICN
2 stops33h 00mMultiple Airlines
Thu 10/238:45 pmICN - ORD
1 stop33h 58mMultiple Airlines
Deal found 9/18$787
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/54:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Tue 11/410:00 amICN - ORD
1 stop41h 55mCathay Pacific
Deal found 9/17$788

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to South Korea 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 September 18, 2025.
Use the filters below to find and compare flights from Chicago to South Korea that are best for you.

Fly from

Chicago

Fly to

South Korea

Route

Depart

Return

Price

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 11/2

2:35 pm-12:45 pm

1 stop31h 10m

Incheon Intl

Sun 11/9

1:45 pm-12:55 pm

1 stop38h 10m

$931

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 11/13

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Wed 11/26

6:55 pm-7:35 pm

1 stop39h 40m

$957

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Thu 10/16

5:56 pm-4:55 am

1 stop20h 59m

Incheon Intl

Sun 11/2

9:20 pm-6:39 pm

2 stops36h 19m

$1,000

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 3/9

3:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 3/13

7:55 am-1:55 pm

1 stop20h 00m

$1,038

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Wed 10/1

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Sat 11/1

1:50 pm-8:35 pm

1 stop20h 45m

$1,056

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 9/29

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Sat 11/1

1:50 pm-8:35 pm

1 stop20h 45m

$1,056

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Wed 10/1

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Fri 10/31

1:50 pm-8:35 pm

1 stop20h 45m

$1,056

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Wed 11/5

2:06 pm-9:35 pm

2 stops40h 29m

Incheon Intl

Tue 11/11

9:55 pm-11:55 pm

1 stop17h 00m

$1,058

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 11/13

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Wed 11/26

6:55 pm-6:28 am

2 stops26h 33m

$1,058

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Fri 10/17

6:24 pm-3:45 pm

2 stops31h 21m

Incheon Intl

Sun 11/2

9:55 pm-11:55 pm

1 stop17h 00m

$1,064

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to South Korea

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

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

Currently, February is the cheapest month in which you can book a flight from Chicago to South Korea (average of $989). Flying from Chicago to South Korea in December is currently the most expensive (average of $1,621). 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 CHI to KR?

Find hourly flight availability from Chicago to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 18, 2025.

When flying from Chicago to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Chicago to South Korea

Explore weekly flight availability from Chicago to South Korea. 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 September 18, 2025.

The most flights from CHI to KR0 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).

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated September 18, 2025.
Peruse reviews from past customers who have flown with Korean Air, Delta, and Cathay Pacific from Chicago to South Korea to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,140 reviews
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,964 reviews
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
998 reviews
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Turkish Airlines
7.3
Good
3,969 reviews
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,000 reviews
Korean Air
8.4
Very good
1,140 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

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

  • How long is the flight from Chicago to South Korea?

    Departing from Chicago to South Korea will take you 23h 35m. Airlines will cover a distance of 6630 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Chicago to South Korea?

    When deciding which route to take from Chicago to South Korea consider Chicago O'Hare Intl - Incheon Intl, Chicago O'Hare Intl - Seoul Gimpo Intl or Chicago Midway - Incheon Intl as they are the most popular.

  • What are the most reliable airlines from Chicago to South Korea?

    Before booking your flight to South Korea from Chicago, check out the most reliable airlines to get you to your destination on time: Delta (80%), Korean Air (55%), Atlas Air( 8%).

  • What are the cheapest flights from Chicago to South Korea?

    The cheapest flight price from Chicago to South Korea is $403. On average you can expect to pay $2,035. The most popular route, (Chicago O'Hare Intl - Incheon Intl), can usually be booked for $738.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Chicago to South Korea (average of $989). Flying from Chicago to South Korea in December is currently the most expensive (average of $1,621). 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 Chicago to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Chicago to South Korea

Discover the top 9 airlines that operate flights from Chicago to South Korea. 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 September 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$297Average$1,016FlexibilityNo cancel feeOn-time69%
DeltaCheapest$297Average$1,906FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$639Average$897FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$848Average$1,036FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$901Average$1,288FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$926Average$953FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$1,085Average$1,322FlexibilityNo cancel feeOn-time74%
FinnairCheapest$1,110Average$1,375FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,493Average$2,079FlexibilityNo cancel feeOn-time81%

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