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

EVA Air, at $1,121, was found to be the cheapest airline from Chicago to Seoul.Alternate airlines to your destination round-trip include Turkish Airlines and Cathay Pacific. EVA Air is currently priced 24% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Chicago to Seoul one-way?

To fly one-way, consider booking your trip with Cathay Pacific, which is currently one of the cheapest options available, starting at $425. WestJet flights start at $453 while deals on Turkish Airlines start at $503 one-way.

What is the cheapest day to fly from Chicago to Seoul?

Travelers seeking maximum savings on their Chicago to Seoul flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 cheapest flights from Chicago to Seoul?

On average you can expect to pay $2,020 for a flight from Chicago to Seoul. The cheapest flight overall is $447 while the most popular route, (Chicago O'Hare Intl - Incheon Intl) is currently priced at $821.

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 (86%), Korean Air (76%), Atlas Air( 11%).

What are the most popular airlines that fly from Chicago to Seoul?

Before booking your flight from Chicago to Seoul check out the most popular airlines for this route: American Airlines, Air Canada or Finnair.

What is the cheapest day to fly round-trip from Chicago to Seoul?

Flights from Chicago to Seoul are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seoul.

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

Users have found that booking a flight from Chicago to Seoul at least 41 days early can save you up to 3% on average compared to booking a flight this week. If booking 41 days before your flight isn’t an option for you, users have found flights from Chicago to Seoul for as little as $927 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,088 for flights departing within the next 3 days.

What is the cheapest month to fly from Chicago to Seoul?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, January can be a great choice for travel to Seoul. Flights to Seoul from Chicago in January are about $1,487 on average during January, but can be found for as low as $891.

Most accurate provider : When it comes to deals on Chicago-Seoul flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Seoul flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Seoul flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chicago-Seoul flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$424+ Flights from Chicago to Seoul

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Find cheap flights from Chicago to Seoul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Seoul are usually found in January or October, booked 40 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Chicago to Seoul

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,121 (FlightHub)
One-way from	$425 (WhyPayMore)
Popular in	December
Cheapest in	January
Average price	$1,567
Good round-trip deal	$879 or less
Good one-way deal	$531 or less

Provider with most accurate pricing for Chicago (CHI)-Seoul (SEL) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Seoul (SEL) flights.

Search Deals

From Chicago (CHI) to Seoul (SEL)

Search Deals

One-way flight from Chicago (CHI) to Seoul (SEL)

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($96 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($58 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Price to beat on a round-trip flight from Chicago (CHI) to Seoul (SEL).

Search Deals

Price to beat on a one-way flight from Chicago (CHI) to Seoul (SEL).

Search Deals

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 May 1, 2025.

Mon 9/812:30 amORD - GMP

1 stop28h 45mEVA Air

Tue 9/237:15 pmGMP - ORD

1 stop39h 30mEVA Air

Deal found 4/29

$1,121

Fri 10/3112:30 amORD - ICN

1 stop20h 00mEVA Air

Fri 11/711:40 amICN - ORD

1 stop22h 55mEVA Air

Deal found 4/29

$1,158

Sat 7/54:00 pmORD - ICN

1 stop37h 05mCathay Pacific

Tue 7/223:10 pmICN - ORD

1 stop37h 15mCathay Pacific

Deal found 4/29

$1,162

Sun 5/257:59 pmORD - ICN

2 stops55h 06mMultiple Airlines

Mon 6/210:05 pmICN - ORD

1 stop22h 37mMultiple Airlines

Deal found 4/28

$1,166

Thu 7/2411:25 amORD - ICN

1 stop31h 15mTurkish Airlines

Fri 8/810:20 amICN - ORD

1 stop37h 20mTurkish Airlines

Deal found 4/29

$1,169

Fri 10/3110:55 pmORD - ICN

1 stop42h 45mLOT

Sat 1/241:25 pmICN - ORD

1 stop45h 35mLOT

Deal found 4/30

$1,222

Sun 8/311:40 pmORD - ICN

2 stops39h 05mWestJet

Sun 9/218:45 pmICN - ORD

1 stop33h 58mWestJet

Deal found 4/29

$1,235

Tue 9/28:08 pmORD - ICN

2 stops29h 57mAir Canada

Mon 9/157:05 pmICN - ORD

2 stops26h 56mAir Canada

Deal found 4/30

$1,258

Thu 8/284:57 pmORD - ICN

2 stops28h 23mFinnair

Sun 9/79:50 pmICN - ORD

2 stops45h 28mFinnair

Deal found 4/30

$1,273

Wed 4/3012:30 amORD - GMP

1 stop22h 20mMultiple Airlines

Thu 5/292:25 pmGMP - ORD

3 stops34h 30mMultiple Airlines

Deal found 4/29

$1,289

Thu 6/125:20 pmMDW - ICN

2 stops35h 25mMultiple Airlines

Thu 6/198:45 pmICN - MDW

2 stops34h 09mMultiple Airlines

Deal found 4/29

$1,410

Mon 9/89:20 amMDW - ICN

2 stops19h 25mWestJet

Thu 9/188:45 pmICN - MDW

2 stops27h 06mWestJet

Deal found 4/29

$1,556

Best flights from Chicago to Seoul
Discover carefully curated flight deals from Chicago to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Mon 9/812:30 amORD - GMP

1 stop28h 45mEVA Air

Tue 9/237:15 pmGMP - ORD

1 stop39h 30mEVA Air

Deal found 4/29

$1,121

Thu 8/284:00 pmORD - ICN

1 stop37h 05mMultiple Airlines

Sun 9/78:05 pmICN - ORD

2 stops30h 27mMultiple Airlines

Deal found 4/30

$1,176

Thu 10/211:25 amORD - ICN

1 stop31h 15mTurkish Airlines

Wed 10/1510:20 amICN - ORD

1 stop37h 20mTurkish Airlines

Deal found 4/30

$1,182

Sat 7/54:00 pmORD - ICN

1 stop39h 10mCathay Pacific

Sat 7/1910:10 amICN - ORD

1 stop42h 15mCathay Pacific

Deal found 4/30

$1,184

Wed 9/31:40 pmORD - ICN

2 stops39h 05mWestJet

Sun 9/218:45 pmICN - ORD

2 stops33h 49mWestJet

Deal found 4/29

$1,214

Wed 10/19:12 pmORD - ICN

2 stops28h 53mAir Canada

Wed 10/155:45 pmICN - ORD

1 stop16h 19mAir Canada

Deal found 4/30

$1,259

Thu 9/254:56 pmORD - ICN

2 stops28h 24mFinnair

Fri 10/3111:00 pmICN - ORD

2 stops36h 02mFinnair

Deal found 4/30

$1,318

Wed 9/171:35 pmORD - ICN

3 stops42h 45mSingapore Airlines

Wed 9/244:45 pmICN - ORD

3 stops42h 09mSingapore Airlines

Deal found 4/30

$1,355

Wed 9/175:45 pmORD - GMP

1 stop27h 20mANA

Wed 10/87:55 pmGMP - ORD

1 stop26h 45mANA

Deal found 4/30

$1,598

Sun 8/171:30 amORD - GMP

1 stop19h 15mJapan Airlines

Wed 8/277:55 amGMP - ORD

1 stop15h 20mJapan Airlines

Deal found 4/30

$1,707

Sat 6/217:21 pmMDW - ICN

2 stops31h 19mKLM

Sun 6/2910:25 pmICN - MDW

2 stops34h 16mKLM

Deal found 4/30

$1,737

Tue 9/99:30 amMDW - ICN

1 stop16h 55mKorean Air

Tue 9/2310:15 amICN - MDW

1 stop16h 17mKorean Air

Deal found 4/29

$1,780

Last-minute flights from Chicago to Seoul
Discover last-minute flight deals from Chicago to Seoul. Data last updated May 1, 2025 and is based on user searches.

Wed 4/3012:30 amORD - GMP

1 stop22h 20mMultiple Airlines

Thu 5/292:25 pmGMP - ORD

3 stops34h 30mMultiple Airlines

Deal found 4/29

$1,289

Fri 5/25:55 pmORD - GMP

2 stops29h 10mAir China

Fri 6/62:25 pmGMP - ORD

2 stops28h 26mAir China

Deal found 4/30

$1,612

Tue 5/63:44 pmORD - ICN

2 stops29h 16mEVA Air

Sat 5/247:45 pmICN - ORD

1 stop39h 15mEVA Air

Deal found 4/30

$1,164

Tue 5/612:30 amORD - ICN

1 stop28h 15mMultiple Airlines

Fri 6/612:45 pmICN - ORD

1 stop24h 10mMultiple Airlines

Deal found 4/30

$1,171

Wed 5/79:20 amMDW - ICN

2 stops43h 25mWestJet

Fri 6/68:45 pmICN - MDW

2 stops35h 02mWestJet

Deal found 4/30

$1,792

Wed 5/711:50 amORD - GMP

1 stop20h 30mANA

Thu 5/157:40 amGMP - ORD

1 stop21h 15mANA

Deal found 4/30

$2,205

Wed 5/79:20 amMDW - ICN

1 stop18h 00mKorean Air

Wed 5/1410:15 amICN - MDW

1 stop16h 13mKorean Air

Deal found 4/30

$2,297

Thu 5/87:19 pmORD - GMP

2 stops27h 31mEVA Air

Wed 6/48:20 pmGMP - ORD

1 stop38h 40mEVA Air

Deal found 4/29

$1,164

Thu 5/811:50 amORD - GMP

3 stops35h 00mMultiple Airlines

Thu 6/122:25 pmGMP - ORD

2 stops30h 26mMultiple Airlines

Deal found 4/30

$1,462

Thu 5/812:00 pmORD - ICN

1 stop32h 40mAir India

Sat 8/2312:15 pmICN - ORD

1 stop33h 10mAir India

Deal found 4/30

$1,726

Thu 5/84:51 pmORD - ICN

3 stops38h 59mChina Southern

Sat 5/243:15 pmICN - ORD

2 stops28h 58mChina Southern

Deal found 4/30

$1,805

Thu 5/87:20 pmORD - ICN

1 stop31h 45mQatar Airways

Tue 6/31:20 amICN - ORD

1 stop27h 45mQatar Airways

Deal found 4/29

$1,898

One-way flights from Chicago to Seoul
Search for one-way flight options from Chicago to Seoul. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Thu 8/214:00 pmORD - ICN

1 stop30h 40mCathay Pacific

Deal found 4/30

$425

Sun 8/241:40 pmORD - ICN

2 stops39h 05mWestJet

Deal found 4/30

$453

Sat 8/167:18 pmORD - ICN

1 stop35h 12mMultiple Airlines

Deal found 4/30

$484

Tue 7/297:50 pmORD - ICN

1 stop31h 50mTurkish Airlines

Deal found 4/30

$503

Mon 6/99:12 pmMDW - ICN

3 stops55h 33mMultiple Airlines

Deal found 4/30

$596

Fri 8/224:00 pmORD - GMP

2 stops37h 45mMultiple Airlines

Deal found 4/29

$601

Wed 8/2012:30 amORD - ICN

1 stop20h 30mEVA Air

Deal found 4/30

$641

Wed 8/1312:30 amORD - GMP

1 stop22h 20mEVA Air

Deal found 4/30

$649

Mon 9/86:20 amORD - ICN

2 stops47h 15mChina Airlines

Deal found 4/30

$662

Thu 8/289:12 pmORD - ICN

2 stops28h 53mAir Canada

Deal found 4/30

$739

Fri 8/226:45 pmMDW - ICN

2 stops58h 00mWestJet

Deal found 4/29

$781

Thu 9/183:35 pmORD - GMP

2 stops31h 30mAir China

Deal found 4/29

$807

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 9/8

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Tue 9/23

7:15 pm-8:45 pm

1 stop39h 30m

$1,121

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 9/17

12:30 am-11:00 am

1 stop20h 30m

Incheon Intl

Sat 9/27

7:45 pm-8:45 pm

1 stop39h 00m

$1,159

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 7/5

4:00 pm-7:05 pm

1 stop37h 05m

Incheon Intl

Tue 7/22

3:10 pm-2:25 pm

1 stop37h 15m

$1,162

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 5/25

7:59 pm-5:05 pm

2 stops55h 06m

Incheon Intl

Mon 6/2

10:05 pm-6:42 am

1 stop22h 37m

$1,166

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Thu 7/24

11:25 am-8:40 am

1 stop31h 15m

Incheon Intl

Fri 8/8

10:20 am-9:40 am

1 stop37h 20m

$1,169

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 8/31

1:40 pm-6:45 pm

2 stops39h 05m

Incheon Intl

Sun 9/21

8:45 pm-4:43 pm

1 stop33h 58m

$1,235

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 9/2

8:08 pm-4:05 pm

2 stops29h 57m

Incheon Intl

Mon 9/15

7:05 pm-8:01 am

2 stops26h 56m

$1,258

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Thu 8/28

4:57 pm-11:20 am

2 stops28h 23m

Incheon Intl

Sun 9/7

9:50 pm-5:18 am

2 stops45h 28m

$1,273

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 9/17

1:35 pm-3:35 pm

3 stops36h 00m

Incheon Intl

Wed 9/24

4:45 pm-8:54 pm

3 stops42h 09m

$1,355

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Thu 6/12

5:20 pm-6:45 pm

2 stops35h 25m

Incheon Intl

Thu 6/19

8:45 pm-4:54 pm

2 stops34h 09m

$1,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 39 results

Compare providers for flights from Chicago to Seoul

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Seoul in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Chicago-Seoul flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Seoul flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Seoul flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chicago-Seoul flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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 40 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 $1,001). Flying from Chicago to Seoul in December is currently the most expensive (average of $1,635). 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?

It’s typically best to fly out from Chicago to Seoul in the evening. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Chicago to Seoul

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).

Rainfall in Seoul by month

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

If weather is an important factor for your trip to Seoul, 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 35.6 F).

Reviews of airlines servicing Seoul

Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from Chicago to Seoul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

EVA Air

8.4

Very good

1,186 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Korean Air

8.4

Very good

1,068 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Japan Airlines

8.3

Very good

1,464 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

China Airlines

8.3

Very good

732 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

ANA

8.3

Very good

852 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

What are the cheapest airlines flying from Chicago to Seoul round-trip?
EVA Air, at $1,121, was found to be the cheapest airline from Chicago to Seoul.Alternate airlines to your destination round-trip include Turkish Airlines and Cathay Pacific. EVA Air is currently priced 24% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Chicago to Seoul one-way?
To fly one-way, consider booking your trip with Cathay Pacific, which is currently one of the cheapest options available, starting at $425. WestJet flights start at $453 while deals on Turkish Airlines start at $503 one-way.
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 (86%), Korean Air (76%), Atlas Air( 11%).
What are the cheapest flights from Chicago to Seoul?
On average you can expect to pay $2,020 for a flight from Chicago to Seoul. The cheapest flight overall is $447 while the most popular route, (Chicago O'Hare Intl - Incheon Intl) is currently priced at $821.
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 $1,001). Flying from Chicago to Seoul in December is currently the most expensive (average of $1,635). 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

Alternative routes for Chicago to Seoul

O'Hare Intl to Incheon Intl flights

O'Hare Intl to Gimpo Intl flights

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Midway to Busan flights

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O'Hare Intl to Daegu flights

St. Louis to Busan flights

St. Louis to Jeju City flights

Moline to Incheon Intl flights

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Seoul Gimpo Intl Airport to Jeju City flights

Seoul Gimpo Intl Airport to Busan flights

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Seoul Gimpo Intl Airport to Busan flights

Incheon Intl Airport to Fukuoka flights

Seoul Gimpo Intl Airport to Jeju City flights

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Incheon Intl Airport to Kota Kinabalu flights

Incheon Intl Airport to Cebu City flights

Top 10 airlines flying from Chicago to Seoul

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$660	Average$1,020	FlexibilityNo cancel fee	On-time69%
Cathay Pacific	Cheapest$805	Average$940	FlexibilityNo cancel fee	On-time72%
Turkish Airlines	Cheapest$848	Average$1,068	FlexibilityNo cancel fee	On-time77%
Air Canada	Cheapest$891	Average$1,318	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$906	Average$971	FlexibilityNo cancel fee	On-time71%
EVA Air	Cheapest$1,059	Average$1,250	FlexibilityNo cancel fee	On-time74%
Finnair	Cheapest$1,110	Average$1,503	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$1,156	Average$1,850	FlexibilityNo cancel fee	On-timeN/A
Asiana Airlines	Cheapest$1,271	Average$1,595	FlexibilityNo cancel fee	On-time76%
Korean Air	Cheapest$1,519	Average$1,818	FlexibilityNo cancel fee	On-time81%

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$424+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Chicago to Seoul are usually found in January or October, booked 40 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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Find flight deals from Chicago to Seoul

Cheapest flights from Chicago to SeoulExplore 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 May 1, 2025.

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 May 1, 2025.

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Use the filters below to find and compare flights from Chicago to Seoul that are best for you.

Compare providers for flights from Chicago to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Seoul in May.

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.

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 April 25, 2025.

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

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 May 1, 2025.

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 May 1, 2025.

Rainfall in Seoul by month

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

Temperature in Seoul by month

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

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 May 1, 2025.

Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from Chicago to Seoul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

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

What are the cheapest airlines to fly from Chicago to Seoul one-way?

What are the most popular routes from Chicago to Seoul?

What are the most reliable airlines from Chicago to Seoul?

What are the cheapest flights from Chicago to Seoul?

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

How can I find direct flights from Chicago to Seoul?

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

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

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Alternative routes for Chicago to Seoul

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Top 10 airlines flying from Chicago to Seoul

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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 May 1, 2025.