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Cheap flights from Illinois to Seoul from $556

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Seoul departing on 4/21. 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

Enter your travel dates to find the best prices.
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
7:15 pm - 9:00 pm
GMP
-
ORD
39h 45m
1 stop
$1,190EVA Air
Sun, Apr 19 - Tue, May 5
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
7:15 pm - 9:00 pm
GMP
-
ORD
39h 45m
1 stop
$1,193EVA Air
Sun, Apr 19 - Tue, May 5
EVA Air Logo
12:30 am - 7:15 pm
ORD
-
GMP
28h 45m
1 stop
EVA Air Logo
7:15 pm - 9:00 pm
GMP
-
ORD
39h 45m
1 stop
$1,228EVA Air
Mon, Apr 27 - Tue, May 5
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
7:15 pm - 9:00 pm
GMP
-
ORD
39h 45m
1 stop
$1,243EVA Air
Sun, Apr 19 - Tue, May 5
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
7:15 pm - 9:00 pm
GMP
-
ORD
39h 45m
1 stop
$1,251EVA Air
Sun, Apr 19 - Tue, May 5
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
8:20 pm - 9:00 pm
GMP
-
ORD
38h 40m
1 stop
$1,253EVA Air
Sun, Apr 19 - Wed, May 6
Multiple Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Multiple Airlines Logo
7:15 pm - 7:41 am
GMP
-
ORD
50h 26m
2 stops
$1,288Multiple Airlines
Tue, Apr 14 - Tue, Apr 28
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
8:00 am - 11:00 am
GMP
-
ORD
17h 00m
1 stop
$1,340Japan Airlines
Tue, Apr 21 - Mon, May 11
Japan Airlines Logo
6:21 am - 10:40 am
STL
-
GMP
38h 19m
2 stops
Japan Airlines Logo
7:15 pm - 2:03 pm
GMP
-
STL
32h 48m
2 stops
$1,421Japan Airlines
Sat, Apr 18 - Sun, Apr 26
Japan Airlines Logo
9:08 am - 9:15 pm
STL
-
GMP
22h 07m
2 stops
Japan Airlines Logo
8:00 am - 3:48 pm
GMP
-
STL
21h 48m
2 stops
$1,503Japan Airlines
Sun, Jul 26 - Wed, Aug 12

Japan Airlines flights from Illinois to Seoul Gimpo Intl Airport

Our best Japan Airlines deals on Illinois to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Apr 21
ORD2:10 pmChicago O'Hare Intl
17h 05m
1 stop
GMP9:15 pmSeoul Gimpo Intl
May 11
GMP8:00 amSeoul Gimpo Intl
17h 00m
1 stop
ORD11:00 amChicago O'Hare Intl
$1,340
Japan Airlines
Apr 14
ORD2:10 pmChicago O'Hare Intl
17h 05m
1 stop
GMP9:15 pmSeoul Gimpo Intl
May 14
GMP12:05 pmSeoul Gimpo Intl
22h 09m
2 stops
ORD8:14 pmChicago O'Hare Intl
$1,343
Japan Airlines
Apr 16
ORD2:10 pmChicago O'Hare Intl
30h 30m
1 stop
GMP10:40 amSeoul Gimpo Intl
May 15
GMP7:15 pmSeoul Gimpo Intl
29h 45m
1 stop
ORD11:00 amChicago O'Hare Intl
$1,345

EVA Air flights from Illinois to Seoul Gimpo Intl Airport

Our best EVA Air deals on Illinois to Seoul Gimpo Intl Airport flight tickets
EVA Air
Apr 19
ORD12:30 amChicago O'Hare Intl
27h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
May 5
GMP7:15 pmSeoul Gimpo Intl
39h 45m
1 stop
ORD9:00 pmChicago O'Hare Intl
$1,190
EVA Air
Apr 19
ORD12:30 amChicago O'Hare Intl
27h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
May 5
GMP7:15 pmSeoul Gimpo Intl
39h 45m
1 stop
ORD9:00 pmChicago O'Hare Intl
$1,193
EVA Air
Apr 27
ORD12:30 amChicago O'Hare Intl
28h 45m
1 stop
GMP7:15 pmSeoul Gimpo Intl
May 5
GMP7:15 pmSeoul Gimpo Intl
39h 45m
1 stop
ORD9:00 pmChicago O'Hare Intl
$1,228

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Seoul Gimpo Intl Airport 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 March 31, 2026.
Use the filters below to find and compare flights from Illinois to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 4/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-9:00 pm

1 stop39h 45m

$1,190

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 4/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-9:00 pm

1 stop39h 45m

$1,193

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 4/27

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-9:00 pm

1 stop39h 45m

$1,228

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 4/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-9:00 pm

1 stop39h 45m

$1,243

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 4/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 5/5

7:15 pm-9:00 pm

1 stop39h 45m

$1,251

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 4/19

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Wed 5/6

8:20 pm-9:00 pm

1 stop38h 40m

$1,253

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Tue 4/14

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Tue 4/28

7:15 pm-7:41 am

2 stops50h 26m

$1,288
Quickest round-trip

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Tue 4/21

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Mon 5/11

8:00 am-11:00 am

1 stop17h 00m

$1,340

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 4/18

6:21 am-10:40 am

2 stops38h 19m

Seoul Gimpo Intl

Sun 4/26

7:15 pm-2:03 pm

2 stops32h 48m

$1,421

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 7/26

9:08 am-9:15 pm

2 stops22h 07m

Seoul Gimpo Intl

Wed 8/12

8:00 am-3:48 pm

2 stops21h 48m

$1,503

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 Illinois to Seoul Gimpo Intl Airport

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

Can stopping save me money on Illinois to Seoul Gimpo Intl Airport flights?

You could potentially save up to 47% on your flight if you consider stops on a Illinois to Seoul Gimpo Intl Airport flight.

Cheap Illinois to Seoul Gimpo Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Seoul Gimpo Intl Airport

Fastest flight time

16h 45m

Direct flights

None
The fastest flight from Illinois to Seoul Gimpo Intl Airport takes 16h 45m
There are no direct flights from Illinois to Seoul Gimpo Intl Airport. There are no popular flight routes from Illinois to Seoul Gimpo Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Seoul Gimpo Intl Airport?

    Prices for flights from Illinois to Seoul Gimpo Intl Airport are updated daily.

  • How old do you have to be to fly from Illinois to Seoul Gimpo Intl Airport?

    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 Illinois to Seoul Gimpo Intl Airport.

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

    The required travel and health documents for your Seoul Gimpo Intl Airport 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 Gimpo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Seoul from Illinois with this policy.

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

momondo provides multiple filters to help you find the best flight to Seoul from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois 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 Illinois and alert you when they change.

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