Cheap flights from Chicago to Seoul from $310

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 10/18. 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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Find the cheapest flights from Chicago to Seoul (CHI-SEL)

Cheap round-trip flights

Cathay Pacific Logo
2:40 pm - 1:55 pmORD-ICN
32h 15m1 stop
Cathay Pacific Logo
1:50 pm - 1:00 pmICN-ORD
38h 10m1 stop
$761Cathay Pacific
Find Deal
Sun, Nov 23 - Fri, Dec 12
Cathay Pacific Logo
4:00 pm - 7:05 pmORD-ICN
37h 05m1 stop
Cathay Pacific Logo
1:40 pm - 2:25 pmICN-ORD
38h 45m1 stop
$765Cathay Pacific
Find Deal
Fri, Sep 5 - Tue, Sep 16
Cathay Pacific Logo
4:00 pm - 7:05 pmORD-ICN
37h 05m1 stop
Cathay Pacific Logo
3:00 pm - 2:00 pmICN-ORD
37h 00m1 stop
$767Cathay Pacific
Find Deal
Mon, Oct 20 - Mon, Oct 27
Cathay Pacific Logo
4:00 pm - 2:05 pmORD-ICN
32h 05m1 stop
Cathay Pacific Logo
1:40 pm - 2:25 pmICN-ORD
38h 45m1 stop
$769Cathay Pacific
Find Deal
Sat, Sep 27 - Sat, Oct 18
Air Canada Logo
3:50 pm - 4:05 pmORD-ICN
34h 15m3 stops
Air Canada Logo
6:00 pm - 2:55 pmICN-ORD
34h 55m1 stop
$913Air Canada
Find Deal
Tue, Sep 9 - Fri, Sep 12
EVA Air Logo
12:30 am - 6:10 pmORD-GMP
27h 40m1 stop
EVA Air Logo
7:00 pm - 7:35 pmGMP-ORD
39h 35m1 stop
$1,117EVA Air
Find Deal
Sun, Oct 19 - Tue, Nov 11
EVA Air Logo
12:30 am - 7:15 pmORD-GMP
28h 45m1 stop
EVA Air Logo
1:50 pm - 8:35 pmGMP-ORD
20h 45m1 stop
$1,128EVA Air
Find Deal
Mon, Sep 15 - Fri, Oct 31
Delta Logo
9:20 am - 5:20 pmMDW-ICN
18h 00m1 stop
Delta Logo
10:15 am - 12:28 pmICN-MDW
16h 13m1 stop
$1,607Delta
Find Deal
Mon, Sep 22 - Wed, Oct 1
Delta Logo
9:30 am - 5:00 amMDW-ICN
29h 30m2 stops
Delta Logo
2:30 pm - 9:26 pmICN-MDW
20h 56m2 stops
$1,612Delta
Find Deal
Tue, Sep 2 - Mon, Sep 8
Korean Air Logo
9:30 am - 4:25 pmMDW-ICN
16h 55m1 stop
Korean Air Logo
10:15 am - 12:28 pmICN-MDW
16h 13m1 stop
$1,921Korean Air
Find Deal
Mon, Sep 8 - Mon, Sep 15

WestJet flights from Chicago to Seoul

Our best WestJet deals on Chicago to Seoul flight tickets
WestJet
Oct 3
ORD5:30 pmChicago O'Hare Intl
35h 15m
1 stop
ICN6:45 pmIncheon Intl
Oct 11
ICN8:45 pmIncheon Intl
33h 58m
1 stop
ORD4:43 pmChicago O'Hare Intl
WestJet
Oct 3
ORD5:30 pmChicago O'Hare Intl
35h 15m
1 stop
ICN6:45 pmIncheon Intl
Oct 11
ICN8:45 pmIncheon Intl
33h 58m
1 stop
ORD4:43 pmChicago O'Hare Intl
WestJet
Sep 27
ORD1:40 pmChicago O'Hare Intl
39h 05m
2 stops
ICN6:45 pmIncheon Intl
Oct 18
ICN8:45 pmIncheon Intl
33h 58m
1 stop
ORD4:43 pmChicago O'Hare Intl

Cathay Pacific flights from Chicago to Seoul

Our best Cathay Pacific deals on Chicago to Seoul flight tickets
Cathay Pacific
Nov 23
ORD2:40 pmChicago O'Hare Intl
32h 15m
1 stop
ICN1:55 pmIncheon Intl
Dec 12
ICN1:50 pmIncheon Intl
38h 10m
1 stop
ORD1:00 pmChicago O'Hare Intl
Cathay Pacific
Sep 5
ORD4:00 pmChicago O'Hare Intl
37h 05m
1 stop
ICN7:05 pmIncheon Intl
Sep 16
ICN1:40 pmIncheon Intl
38h 45m
1 stop
ORD2:25 pmChicago O'Hare Intl
Cathay Pacific
Oct 20
ORD4:00 pmChicago O'Hare Intl
37h 05m
1 stop
ICN7:05 pmIncheon Intl
Oct 27
ICN3:00 pmIncheon Intl
37h 00m
1 stop
ORD2:00 pmChicago O'Hare Intl

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 August 26, 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

Sun 11/23

2:40 pm-1:55 pm

1 stop32h 15m

Incheon Intl

Fri 12/12

1:50 pm-1:00 pm

1 stop38h 10m

$761

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Fri 9/5

4:00 pm-7:05 pm

1 stop37h 05m

Incheon Intl

Tue 9/16

1:40 pm-2:25 pm

1 stop38h 45m

$765

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Mon 10/20

4:00 pm-7:05 pm

1 stop37h 05m

Incheon Intl

Mon 10/27

3:00 pm-2:00 pm

1 stop37h 00m

$767

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Sat 9/27

4:00 pm-2:05 pm

1 stop32h 05m

Incheon Intl

Sat 10/18

1:40 pm-2:25 pm

1 stop38h 45m

$769

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 9/9

3:50 pm-4:05 pm

3 stops34h 15m

Incheon Intl

Fri 9/12

6:00 pm-2:55 pm

1 stop34h 55m

$913

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 10/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 11/11

7:00 pm-7:35 pm

1 stop39h 35m

$1,117

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 9/15

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Fri 10/31

1:50 pm-8:35 pm

1 stop20h 45m

$1,128

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Mon 9/22

9:20 am-5:20 pm

1 stop18h 00m

Incheon Intl

Wed 10/1

10:15 am-12:28 pm

1 stop16h 13m

$1,607

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Tue 9/2

9:30 am-5:00 am

2 stops29h 30m

Incheon Intl

Mon 9/8

2:30 pm-9:26 pm

2 stops20h 56m

$1,612

ChicagoIncheon

MDW - ICN

MDWICN

Chicago Midway

Mon 9/8

9:30 am-4:25 pm

1 stop16h 55m

Incheon Intl

Mon 9/15

10:15 am-12:28 pm

1 stop16h 13m

$1,921

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 October is another great option to travel to Seoul, with average flight prices from Chicago averaging around $1,170.

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 $1,060. 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 $1,380.

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 $1,163 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 $1,490 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 $1,278 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 August 2025, prices for Chicago to Seoul flights are approximately 26% 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

$642

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 $642. The best round-trip flight deal from Chicago to Seoul found on momondo in the last 72 hours is $851.
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)
  • 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
DeltaPriceFrom $321Free CancellationRating
7.9
7,979 reviews
Search Delta flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
Cathay PacificPriceFrom $693Free CancellationRating
7.6
975 reviews
Search Cathay Pacific flights
Turkish AirlinesPriceFrom $848Free CancellationRating
7.3
3,955 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $899Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $906Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
EVA AirPriceFrom $1,085Free CancellationRating
8.4
1,234 reviews
Search EVA Air flights
FinnairPriceFrom $1,110Free CancellationRating
7.6
1,320 reviews
Search Finnair flights
Asiana AirlinesPriceFrom $1,271Free CancellationRating
8.2
477 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,493Free CancellationRating
8.4
1,133 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 $1,866. Our users have rated Korean Air at 8.4/10.

  • Delta Flights From Chicago to Seoul

    Across 7,979 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 $321 to $1,937. 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.

An easier way to manage your Seoul trip

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1 adult
Sun 8/31
Sun 9/7

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