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$331+ Cheap flights from Chicago (CHI) to Seoul (SEL)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SEL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Seoul are usually found in January or October, booked 81 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Chicago to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Seoul (SEL). 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 September 11, 2025.

Round-trip from

$693
(Kiwi.com)

One-way from

$331
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,298

Good round-trip deal

$852 or less

Good one-way deal

$583 or less
From Chicago (CHI) to Seoul (SEL)
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One-way flight from Chicago (CHI) to Seoul (SEL)
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Highest demand for flights based on searches. 4% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($57 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 Seoul (SEL).
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Price to beat on a one-way flight from Chicago (CHI) to Seoul (SEL).
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Find flight deals from Chicago to Seoul

Cheapest flights from Chicago to Seoul
Explore the most affordable flight options available from Chicago to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel 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
Mon 10/138:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 9/11$715
This oojo deal was found by Cheapflights users on 9/11. 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.
Mon 9/294:00 pmORD - ICN
1 stop37h 05mCathay Pacific
Tue 10/2810:05 amICN - ORD
1 stop41h 55mCathay Pacific
Deal found 9/11$728
This oojo deal was found by Cheapflights users on 9/11. 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 stop30h 40mCathay Pacific
Wed 11/127:35 pmICN - ORD
1 stop32h 25mCathay Pacific
Deal found 9/11$730
This oojo deal was found by Cheapflights users on 9/10. 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 stop39h 10mCathay Pacific
Tue 10/148:05 pmICN - ORD
1 stop32h 20mCathay Pacific
Deal found 9/10$735
This oojo deal was found by Cheapflights users on 9/10. 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 stop30h 40mCathay Pacific
Tue 11/117:35 pmICN - ORD
1 stop32h 25mCathay Pacific
Deal found 9/10$737
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Mon 11/32:40 pmORD - ICN
1 stop32h 15mCathay Pacific
Tue 11/187:35 pmICN - ORD
1 stop32h 25mCathay Pacific
Deal found 9/10$745
This oojo deal was found by Cheapflights users on 9/10. 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 stop37h 05mCathay Pacific
Wed 10/151:40 pmICN - ORD
1 stop38h 45mCathay Pacific
Deal found 9/10$752
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Tue 9/164:00 pmORD - ICN
1 stop30h 40mCathay Pacific
Tue 10/143:10 pmICN - ORD
1 stop37h 15mCathay Pacific
Deal found 9/10$760
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Fri 10/175:30 pmORD - ICN
1 stop36h 10mWestJet
Sat 10/258:45 pmICN - ORD
1 stop30h 50mWestJet
Deal found 9/10$761
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/224:00 pmORD - ICN
1 stop32h 05mCathay Pacific
Wed 11/51:50 pmICN - ORD
1 stop38h 10mCathay Pacific
Deal found 9/11$763
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sun 10/267:25 amORD - ICN
1 stop42h 45mMultiple Airlines
Mon 11/108:35 pmICN - ORD
1 stop24h 47mMultiple Airlines
Deal found 9/11$764
This Cathay Pacific deal was found by Cheapflights users on 9/10. 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.
Thu 11/62:40 pmORD - ICN
1 stop32h 15mCathay Pacific
Tue 11/187:35 pmICN - ORD
1 stop32h 25mCathay Pacific
Deal found 9/10$765

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Seoul 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 11, 2025.
Use the filters below to find and compare flights from Chicago to Seoul that are best for you.

Fly from

Chicago

Fly to

Seoul

Route

Depart

Return

Price

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Thu 10/16

5:56 pm-4:55 am

1 stop20h 59m

Incheon Intl

Mon 10/20

8:45 pm-1:38 pm

2 stops30h 53m

$838

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 10/22

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Sun 11/9

10:05 am-1:00 pm

1 stop41h 55m

$879

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Tue 10/21

5:56 pm-4:55 am

1 stop20h 59m

Incheon Intl

Mon 10/27

9:55 pm-11:25 pm

1 stop39h 30m

$926

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Thu 11/6

3:40 pm-5:20 am

2 stops46h 40m

Incheon Intl

Tue 11/11

9:55 pm-11:55 pm

1 stop17h 00m

$952

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Thu 10/16

5:56 pm-4:55 am

1 stop20h 59m

Incheon Intl

Sun 10/19

10:05 pm-11:13 am

2 stops27h 08m

$969

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Tue 11/4

6:26 pm-5:40 am

1 stop20h 14m

Incheon Intl

Wed 11/12

10:00 pm-12:37 pm

2 stops29h 37m

$983

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Fri 10/24

5:28 pm-6:35 pm

2 stops35h 07m

Incheon Intl

Tue 11/4

9:55 pm-11:55 pm

1 stop17h 00m

$989

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 10/21

12:30 am-6:45 pm

1 stop28h 15m

Incheon Intl

Tue 11/11

11:40 am-7:35 pm

1 stop22h 55m

$1,146

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 11/3

11:50 am-9:05 am

1 stop30h 15m

Incheon Intl

Fri 11/14

12:10 am-10:05 am

1 stop24h 55m

$1,181

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 10/13

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Wed 10/22

8:20 pm-8:45 pm

1 stop38h 25m

$1,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

How far ahead should I book a flight from Chicago to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Seoul. Price data was last updated on August 29, 2025.

The price you pay for your flight from Chicago to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Chicago to Seoul (average of $990). Flying from Chicago to Seoul in December is currently the most expensive (average of $1,633). 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 SEL?

Find hourly flight availability from Chicago to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Chicago to Seoul in the morning. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Chicago to Seoul

Explore weekly flight availability from Chicago to Seoul. 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 11, 2025.

The most flights from CHI to SEL 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).

How much does it cost to fly round-trip from Chicago to Seoul?

What’s the top layover airport for flights from Chicago to Seoul?

Share of 1-stop round-trip flights from Chicago to Seoul chosen by Cheapflights users in the past 12 months, using the same layover each way.

Taipei City (TPE) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chicago to Seoul on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Seoul?

Average round-trip fare for 1-stop flights from Chicago to Seoul, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Hong Kong (HKG) is the most affordable 1-stop option, with an average round-trip price of $730.

What’s the fastest layover option from Chicago to Seoul?

Shortest average travel time for 1-stop one-way flights from Chicago to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 17h 55m.

Which airport typically offers the quickest layover for flights from Chicago to Seoul?

Average layover duration for 1-stop one-way flights from Chicago to Seoul, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 28m.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated September 11, 2025.
See what other customers who have flown with EVA Air, Korean Air, and Delta from Chicago to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,236 reviews
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,139 reviews
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,960 reviews
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Turkish Airlines
7.3
Good
3,968 reviews
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Air Canada
7.1
Good
10,000 reviews
EVA Air
8.4
Very good
1,236 reviews

Boarding

8.4

Overall

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Chicago to Seoul. 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 Seoul?

    Departing from Chicago to Seoul will take you 28h 15m. Chicago and Seoul are separated by a distance of 6533 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to Seoul round-trip?

    Delta, at $297, was found to be the cheapest airline from Chicago to Seoul.Alternate airlines to your destination round-trip include Cathay Pacific and United Airlines. Delta is currently priced 79% below the average price you’ll pay for this route.

  • What are the most popular routes from Chicago to Seoul?

    Most travelers choose Chicago O'Hare Intl - Incheon Intl, Chicago O'Hare Intl - Seoul Gimpo Intl or Chicago Midway - Incheon Intl when deciding on the best route from Chicago to Seoul.

  • What are the most reliable airlines from Chicago to Seoul?

    Before booking your flight to Seoul from Chicago, check out the most reliable airlines to get you to your destination on time: Delta (80%), Korean Air (65%), Atlas Air( 8%).

  • What are the cheapest flights from Chicago to Seoul?

    On average you can expect to pay $2,059 for a flight from Chicago to Seoul. The cheapest flight overall is $418 while the most popular route, (Chicago O'Hare Intl - Incheon Intl) is currently priced at $735.

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

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

  • How can I find direct flights from Chicago to Seoul?

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

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

    Yes. Cheapflights offers flight deals from Chicago to Seoul 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 Seoul?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Seoul (average of $990). Flying from Chicago to Seoul in December is currently the most expensive (average of $1,633). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Chicago to Seoul

Discover the top 9 airlines that operate flights from Chicago to Seoul. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$297Average$1,906FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$639Average$909FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$660Average$1,016FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$845Average$953FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$848Average$1,041FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$901Average$1,286FlexibilityNo cancel feeOn-time67%
EVA AirCheapest$1,085Average$1,333FlexibilityNo cancel feeOn-time74%
FinnairCheapest$1,110Average$1,375FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,491Average$1,868FlexibilityNo cancel feeOn-time81%

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