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Cheap flights from Chicago to Seoul from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Seoul departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Cathay Pacific Logo
4:00 pm - 12:40 pmORD-ICN
30h 40m1 stop
Cathay Pacific Logo
10:10 am - 2:25 pmICN-ORD
42h 15m1 stop
$704Cathay Pacific
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Wed, Oct 1 - Tue, Oct 14
Cathay Pacific Logo
4:00 pm - 12:40 pmORD-ICN
30h 40m1 stop
Cathay Pacific Logo
8:05 pm - 2:25 pmICN-ORD
32h 20m1 stop
$725Cathay Pacific
Find Deal
Mon, Sep 29 - Mon, Oct 13
Cathay Pacific Logo
4:00 pm - 12:40 pmORD-ICN
30h 40m1 stop
Cathay Pacific Logo
8:05 pm - 2:25 pmICN-ORD
32h 20m1 stop
$728Cathay Pacific
Find Deal
Wed, Oct 1 - Tue, Oct 14
Logo
6:30 am - 4:10 pmORD-ICN
42h 40m1 stop
Logo
9:20 pm - 1:35 pmICN-ORD
31h 15m2 stops
$758
Find Deal
Sun, Nov 16 - Sun, Nov 30
Logo
6:30 am - 4:10 pmORD-ICN
42h 40m1 stop
Logo
9:20 pm - 1:35 pmICN-ORD
31h 15m2 stops
$760
Find Deal
Sun, Nov 16 - Thu, Nov 27
EVA Air Logo
12:30 am - 6:10 pmORD-GMP
27h 40m1 stop
EVA Air Logo
8:20 pm - 8:45 pmGMP-ORD
38h 25m1 stop
$964EVA Air
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Sun, Sep 21 - Wed, Sep 24
EVA Air Logo
12:30 am - 7:15 pmORD-GMP
28h 45m1 stop
EVA Air Logo
7:00 pm - 7:35 pmGMP-ORD
39h 35m1 stop
$1,121EVA Air
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Mon, Oct 20 - Tue, Jan 20
Delta Logo
9:20 am - 5:20 pmMDW-ICN
18h 00m1 stop
Delta Logo
6:50 pm - 10:14 pmICN-MDW
17h 24m1 stop
$1,607Delta
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Mon, Sep 29 - Mon, Oct 13
Delta Logo
6:00 am - 4:50 pmMDW-ICN
20h 50m1 stop
Delta Logo
10:15 am - 12:26 pmICN-MDW
16h 11m1 stop
$1,657Delta
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Wed, Oct 1 - Sat, Oct 11
Korean Air Logo
9:20 am - 5:20 pmMDW-ICN
18h 00m1 stop
Korean Air Logo
10:15 am - 12:28 pmICN-MDW
16h 13m1 stop
$2,051Korean Air
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Sun, Oct 5 - Fri, Oct 17

Cathay Pacific flights from Chicago to Seoul

Our best Cathay Pacific deals on Chicago to Seoul flight tickets
Cathay Pacific
Oct 1
ORD4:00 pmChicago O'Hare Intl
30h 40m
1 stop
ICN12:40 pmIncheon Intl
Oct 14
ICN10:10 amIncheon Intl
42h 15m
1 stop
ORD2:25 pmChicago O'Hare Intl
$704
Find similar
Cathay Pacific
Sep 29
ORD4:00 pmChicago O'Hare Intl
30h 40m
1 stop
ICN12:40 pmIncheon Intl
Oct 13
ICN8:05 pmIncheon Intl
32h 20m
1 stop
ORD2:25 pmChicago O'Hare Intl
$725
Find similar
Cathay Pacific
Sep 24
ORD4:00 pmChicago O'Hare Intl
32h 05m
1 stop
ICN2:05 pmIncheon Intl
Sep 30
ICN3:10 pmIncheon Intl
37h 15m
1 stop
ORD2:25 pmChicago O'Hare Intl
$726
Find similar

Delta flights from Chicago to Seoul

Our best Delta deals on Chicago to Seoul flight tickets
Delta
Sep 16
MDW9:35 amChicago Midway
16h 50m
1 stop
ICN4:25 pmIncheon Intl
Sep 30
ICN10:15 amIncheon Intl
22h 20m
1 stop
MDW6:35 pmChicago Midway
$1,607
Find similar
Delta
Oct 1
MDW6:00 amChicago Midway
20h 50m
1 stop
ICN4:50 pmIncheon Intl
Oct 11
ICN10:15 amIncheon Intl
16h 11m
1 stop
MDW12:26 pmChicago Midway
$1,657
Find similar
Delta
Nov 9
MDW7:02 pmChicago Midway
29h 28m
1 stop
ICN3:30 pmIncheon Intl
Nov 15
ICN9:35 amIncheon Intl
23h 33m
1 stop
MDW6:08 pmChicago Midway
$1,662
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momondo 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
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

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 10/1

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Tue 10/14

10:10 am-2:25 pm

1 stop42h 15m

$704

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 9/29

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Mon 10/13

8:05 pm-2:25 pm

1 stop32h 20m

$725

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 10/1

4:00 pm-12:40 pm

1 stop30h 40m

Incheon Intl

Tue 10/14

8:05 pm-2:25 pm

1 stop32h 20m

$728

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 11/16

6:30 am-4:10 pm

1 stop42h 40m

Incheon Intl

Sun 11/30

9:20 pm-1:35 pm

2 stops31h 15m

$758

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sun 11/16

6:30 am-4:10 pm

1 stop42h 40m

Incheon Intl

Thu 11/27

9:20 pm-1:35 pm

2 stops31h 15m

$760

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 9/21

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Wed 9/24

8:20 pm-8:45 pm

1 stop38h 25m

$964

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 10/20

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Tue 1/20

7:00 pm-7:35 pm

1 stop39h 35m

$1,121

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Mon 9/29

9:20 am-5:20 pm

1 stop18h 00m

Incheon Intl

Mon 10/13

6:50 pm-10:14 pm

1 stop17h 24m

$1,607

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Wed 10/1

6:00 am-4:50 pm

1 stop20h 50m

Incheon Intl

Sat 10/11

10:15 am-12:26 pm

1 stop16h 11m

$1,657

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Sun 10/5

9:20 am-5:20 pm

1 stop18h 00m

Incheon Intl

Fri 10/17

10:15 am-12:28 pm

1 stop16h 13m

$2,051

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from Chicago to Seoul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Seoul?

What is the cheapest month to fly to Seoul?

The month of February is another great option to travel to Seoul, with average flight prices from Chicago averaging around $1,068.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from Chicago. The lowest ticket price found for a Tuesday departure recently was $1,057. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Friday, with ticket prices averaging around $1,360.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Chicago in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,153 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,430 per ticket.

What is the cheapest Chicago to Seoul flight route?

Fly from Chicago O'Hare Intl to Incheon Intl for the best Chicago - Seoul flight prices

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

You are more likely to see cheaper flights to Seoul from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,472 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Chicago for as low as $1,382 on momondo.

What cabin class options are available on Chicago to Seoul flights?

There are 4 cabin classes available to choose from on Chicago to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Seoul flight prices changed over time?

As of September 2025, prices for Chicago to Seoul flights are approximately 29% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Seoul (CHI to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Seoul

Best Price Found

$504

Fastest flight time

14h 40m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from Chicago in the past 72 hours is $504. The best round-trip flight deal from Chicago to Seoul found on momondo in the last 72 hours is $847.
The fastest flight from Chicago to Seoul takes 14h 40m
Direct flights go from Chicago to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
Search flight deals

  • How far is Chicago to Seoul by plane?

    A flight from Chicago to Seoul will travel around 6526.8 mi. Typically, this will take 16h 50m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago to Seoul?

    Prices for flights from Chicago to Seoul refresh daily.

  • How many operators does momondo search for flights from Chicago to Seoul?

  • How old do you have to be to fly from Chicago to Seoul?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents you'll need for your trip to Seoul may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seoul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Seoul?

  • What is the most popular airline from Chicago to Seoul?

Best airlines flying from Chicago to Seoul

Compare and see reviews for airlines that fly from Chicago to Seoul with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $297Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $297Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Cathay PacificPriceFrom $639Free CancellationRating
7.6
993 reviews
Search Cathay Pacific flights
Turkish AirlinesPriceFrom $848Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $901Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $926Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
EVA AirPriceFrom $1,085Free CancellationRating
8.4
1,236 reviews
Search EVA Air flights
FinnairPriceFrom $1,110Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
Korean AirPriceFrom $1,493Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights

  • Korean Air Flights From Chicago to Seoul

    Korean Air is one of the most popular airlines flying from Chicago to Seoul, operating 7 flights/week on average for this route. A good Korean Air flight deal for Chicago to Seoul starts from $1,493 round-trip, up to an average price of $1,868. Our users have rated Korean Air at 8.4/10.

  • Delta Flights From Chicago to Seoul

    Across 7,954 Delta reviews on momondo, the average score is 7.9/10. Delta flies from Chicago to Seoul about 7 times each week, with ticket deals ranging from $297 to $1,906. Price data is based on momondo searches in the last 72 hours.

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Seoul?

It is quick and easy to find Chicago to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

Can I find flights from Chicago to Seoul with flexible booking policies on momondo?

Flights from Chicago to Seoul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Seoul?

momondo helps you find the best flight between Chicago and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from Chicago and alert you when they change.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport