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Cheap flights from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Seoul

Cheap round-trip flights

Cathay Pacific Logo
4:00 pm - 9:10 pmORD-ICN
39h 10m1 stop
Cathay Pacific Logo
8:05 pm - 2:25 pmICN-ORD
32h 20m1 stop
$730Cathay Pacific
Find Deal
Wed, Oct 1 - Tue, Oct 14
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
$737Cathay Pacific
Find Deal
Wed, Oct 1 - Tue, Oct 14
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
$738Cathay Pacific
Find Deal
Wed, Oct 1 - Tue, Oct 14
Cathay Pacific Logo
4:00 pm - 2:05 pmORD-ICN
32h 05m1 stop
Cathay Pacific Logo
10:05 am - 1:55 pmICN-ORD
41h 50m1 stop
$739Cathay Pacific
Find Deal
Tue, Oct 21 - Mon, Oct 27
Multiple Airlines Logo
5:30 pm - 6:45 pmORD-ICN
35h 15m1 stop
Multiple Airlines Logo
9:25 pm - 10:57 pmICN-ORD
39h 32m2 stops
$778Multiple Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 29
Multiple Airlines Logo
6:50 am - 3:45 pmORD-ICN
42h 55m2 stops
Multiple Airlines Logo
8:45 pm - 1:35 pmICN-ORD
30h 50m1 stop
$801Multiple Airlines
Find Deal
Thu, Oct 16 - Sat, Oct 25
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
$999EVA Air
Find Deal
Mon, Mar 16 - Fri, Mar 27
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
$1,056EVA Air
Find Deal
Mon, Sep 29 - Sat, Nov 1
Air China Logo
4:40 pm - 1:05 pmORD-GMP
30h 25m2 stops
Air China Logo
2:25 pm - 5:16 amGMP-ORD
29h 51m2 stops
$1,337Air China
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air China Logo
3:40 pm - 1:05 pmORD-GMP
30h 25m2 stops
Air China Logo
2:25 pm - 5:16 amGMP-ORD
29h 51m2 stops
$1,379Air China
Find Deal
Mon, Nov 24 - Thu, Nov 27

Cathay Pacific flights from Chicago O'Hare Intl Airport to Seoul

Our best Cathay Pacific deals on Chicago O'Hare Intl Airport to Seoul flight tickets
Cathay Pacific
Oct 1
ORD4:00 pmChicago O'Hare Intl
39h 10m
1 stop
ICN9:10 pmIncheon Intl
Oct 14
ICN8:05 pmIncheon Intl
32h 20m
1 stop
ORD2:25 pmChicago O'Hare Intl
$730
Find similar
Cathay Pacific
Oct 1
ORD4:00 pmChicago O'Hare Intl
37h 05m
1 stop
ICN7:05 pmIncheon Intl
Oct 14
ICN1:40 pmIncheon Intl
38h 45m
1 stop
ORD2:25 pmChicago O'Hare Intl
$737
Find similar
Cathay Pacific
Oct 1
ORD4:00 pmChicago O'Hare Intl
32h 05m
1 stop
ICN2:05 pmIncheon Intl
Oct 14
ICN1:40 pmIncheon Intl
38h 45m
1 stop
ORD2:25 pmChicago O'Hare Intl
$738
Find similar

EVA Air flights from Chicago O'Hare Intl Airport to Seoul

Our best EVA Air deals on Chicago O'Hare Intl Airport to Seoul flight tickets
EVA Air
Sep 22
ORD12:30 amChicago O'Hare Intl
20h 30m
1 stop
ICN11:00 amIncheon Intl
Oct 13
ICN12:00 pmIncheon Intl
22h 45m
1 stop
ORD8:45 pmChicago O'Hare Intl
$961
Find similar
EVA Air
Sep 21
ORD12:30 amChicago O'Hare Intl
27h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Sep 24
GMP8:20 pmSeoul Gimpo Intl
38h 25m
1 stop
ORD8:45 pmChicago O'Hare Intl
$964
Find similar
EVA Air
Mar 16
ORD12:30 amChicago O'Hare Intl
28h 45m
1 stop
GMP7:15 pmSeoul Gimpo Intl
Mar 27
GMP1:50 pmSeoul Gimpo Intl
20h 45m
1 stop
ORD8:35 pmChicago O'Hare Intl
$999
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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-9:10 pm

1 stop39h 10m

Incheon Intl

Tue 10/14

8:05 pm-2:25 pm

1 stop32h 20m

$730

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 10/1

4:00 pm-7:05 pm

1 stop37h 05m

Incheon Intl

Tue 10/14

1:40 pm-2:25 pm

1 stop38h 45m

$737

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Wed 10/1

4:00 pm-2:05 pm

1 stop32h 05m

Incheon Intl

Tue 10/14

1:40 pm-2:25 pm

1 stop38h 45m

$738

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 10/21

4:00 pm-2:05 pm

1 stop32h 05m

Incheon Intl

Mon 10/27

10:05 am-1:55 pm

1 stop41h 50m

$739

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Tue 9/30

5:30 pm-6:45 pm

1 stop35h 15m

Incheon Intl

Wed 10/29

9:25 pm-10:57 pm

2 stops39h 32m

$778

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

Thu 10/16

6:50 am-3:45 pm

2 stops42h 55m

Incheon Intl

Sat 10/25

8:45 pm-1:35 pm

1 stop30h 50m

$801

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 3/16

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Fri 3/27

1:50 pm-8:35 pm

1 stop20h 45m

$999

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

Thu 10/30

4:40 pm-1:05 pm

2 stops30h 25m

Seoul Gimpo Intl

Thu 11/6

2:25 pm-5:16 am

2 stops29h 51m

$1,337

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 11/24

3:40 pm-1:05 pm

2 stops30h 25m

Seoul Gimpo Intl

Thu 11/27

2:25 pm-5:16 am

2 stops29h 51m

$1,379

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 O'Hare Intl Airport 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 cheapest month to fly to Seoul?

The month of September is another great option to travel to Seoul, with average flight prices from Chicago O'Hare Intl Airport averaging around $1,146.

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 O'Hare Intl Airport. The lowest ticket price found for a Tuesday departure recently was $1,053. 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 $1,348.

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

Flying to Seoul from Chicago O'Hare Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,148 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 O'Hare Intl to Seoul flight route?

Fly from Chicago O'Hare Intl to Incheon Intl for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport 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 O'Hare Intl Airport for as low as $1,382 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Seoul flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Seoul flight prices changed over time?

As of September 2025, prices for Chicago O'Hare Intl Airport to Seoul flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Seoul

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

Cheap Chicago O'Hare Intl Airport to Seoul (ORD to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport in the past 72 hours is $504. The best round-trip flight deal from Chicago O'Hare Intl Airport to Seoul found on momondo in the last 72 hours is $847.
The fastest flight from Chicago O'Hare Intl Airport to Seoul takes 14h 40m
Direct flights go from Chicago O'Hare Intl Airport to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
Search flight deals

  • How far is Chicago O'Hare Intl to Seoul by plane?

    The distance between Chicago O'Hare Intl and Seoul is about 6514.0 mi. In terms of flight time, this usually takes a little over 22h 20m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Seoul?

    Prices for flights from Chicago O'Hare Intl Airport to Seoul refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Seoul?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Seoul?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Seoul.

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

    The required travel and health documents for your Seoul trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seoul. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Seoul?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Seoul?

Best airlines flying from Chicago O'Hare Intl Airport to Seoul

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Seoul with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $297Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $297Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Cathay PacificPriceFrom $639Free CancellationRating
7.6
998 reviews
Search Cathay Pacific flights
Turkish AirlinesPriceFrom $848Free CancellationRating
7.3
3,965 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
1,237 reviews
Search EVA Air flights
FinnairPriceFrom $1,110Free CancellationRating
7.6
1,324 reviews
Search Finnair flights
Korean AirPriceFrom $1,493Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights

  • Korean Air Flights From Chicago O'Hare Intl Airport to Seoul

    The lowest priced Korean Air flight from Chicago O'Hare Intl Airport to Seoul from the last 72 hours was $1,493. Generally, Korean Air has 7 flights on this route every week with an average price of $1,868. Korean Air is rated 8.4/10 by our users.

  • Delta Flights From Chicago O'Hare Intl Airport to Seoul

    Across 7,961 Delta reviews on momondo, the average score is 7.9/10. Delta flies from Chicago O'Hare Intl Airport 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Seoul. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Chicago to Seoul flights to just show those with flexible booking policies.

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

Once all potential Chicago to Seoul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Chicago to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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