Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Illinois to Seoul from $502

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 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Japan Airlines Logo
6:40 pm - 10:55 am
ORD
-
GMP
26h 15m
1 stop
Japan Airlines Logo
8:00 am - 11:00 am
GMP
-
ORD
17h 00m
1 stop
$989Japan Airlines
Tue, Mar 10 - Wed, May 13
Japan Airlines Logo
6:40 pm - 10:55 am
ORD
-
GMP
26h 15m
1 stop
Japan Airlines Logo
8:00 am - 2:45 pm
GMP
-
ORD
20h 45m
1 stop
$998Japan Airlines
Mon, Mar 9 - Mon, Mar 16
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
8:00 am - 10:45 am
GMP
-
ORD
16h 45m
1 stop
$1,025Japan Airlines
Mon, Apr 13 - Mon, Apr 20
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
8:00 am - 10:45 am
GMP
-
ORD
16h 45m
1 stop
$1,026Japan Airlines
Mon, Apr 13 - Mon, Apr 20
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
8:00 am - 8:12 pm
GMP
-
ORD
26h 12m
2 stops
$1,035Japan Airlines
Mon, Apr 13 - Wed, Apr 22
Japan Airlines Logo
6:56 am - 9:15 pm
ORD
-
GMP
24h 19m
2 stops
Japan Airlines Logo
8:00 am - 10:45 am
GMP
-
ORD
16h 45m
1 stop
$1,040Japan Airlines
Mon, Apr 13 - Mon, Apr 20
Japan Airlines Logo
5:40 pm - 10:55 am
ORD
-
GMP
26h 15m
1 stop
Japan Airlines Logo
7:40 pm - 8:35 am
GMP
-
ORD
26h 55m
1 stop
$1,041Japan Airlines
Mon, Mar 2 - Mon, Mar 9
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
7:15 pm - 7:20 am
GMP
-
ORD
26h 05m
1 stop
$1,044Japan Airlines
Wed, Apr 15 - Mon, Apr 20
Japan Airlines Logo
2:10 pm - 9:15 pm
ORD
-
GMP
17h 05m
1 stop
Japan Airlines Logo
7:15 pm - 7:20 am
GMP
-
ORD
26h 05m
1 stop
$1,045Japan Airlines
Wed, Apr 15 - Sun, Apr 19
Multiple Airlines Logo
7:05 am - 10:05 pm
STL
-
GMP
25h 00m
2 stops
Multiple Airlines Logo
8:00 am - 6:00 pm
GMP
-
STL
24h 00m
2 stops
$1,253Multiple Airlines
Thu, Mar 12 - Thu, Mar 19

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
Mar 10
ORD6:40 pmChicago O'Hare Intl
26h 15m
1 stop
GMP10:55 amSeoul Gimpo Intl
May 13
GMP8:00 amSeoul Gimpo Intl
17h 00m
1 stop
ORD11:00 amChicago O'Hare Intl
$989
Japan Airlines
Mar 9
ORD6:40 pmChicago O'Hare Intl
26h 15m
1 stop
GMP10:55 amSeoul Gimpo Intl
Mar 16
GMP8:00 amSeoul Gimpo Intl
20h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$998
Japan Airlines
Apr 13
ORD2:10 pmChicago O'Hare Intl
17h 05m
1 stop
GMP9:15 pmSeoul Gimpo Intl
Apr 20
GMP8:00 amSeoul Gimpo Intl
16h 45m
1 stop
ORD10:45 amChicago O'Hare Intl
$1,025

ANA flights from Illinois to Seoul Gimpo Intl Airport

Our best ANA deals on Illinois to Seoul Gimpo Intl Airport flight tickets
ANA
May 27
STL9:23 amLambert-St Louis
46h 57m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Jun 14
GMP7:55 pmSeoul Gimpo Intl
30h 16m
2 stops
STL12:11 pmLambert-St Louis
$2,572
ANA
May 27
STL9:23 amLambert-St Louis
46h 57m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Jun 11
GMP12:40 pmSeoul Gimpo Intl
37h 31m
2 stops
STL12:11 pmLambert-St Louis
$2,622
ANA
Mar 10
STL8:17 amLambert-St Louis
24h 13m
2 stops
GMP10:30 pmSeoul Gimpo Intl
Mar 24
GMP12:25 pmSeoul Gimpo Intl
20h 49m
2 stops
STL7:14 pmLambert-St Louis
$10,731

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 February 13, 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

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Tue 3/10

6:40 pm-10:55 am

1 stop26h 15m

Seoul Gimpo Intl

Wed 5/13

8:00 am-11:00 am

1 stop17h 00m

$989

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 3/9

6:40 pm-10:55 am

1 stop26h 15m

Seoul Gimpo Intl

Mon 3/16

8:00 am-2:45 pm

1 stop20h 45m

$998

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 4/13

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Mon 4/20

8:00 am-10:45 am

1 stop16h 45m

$1,025

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 4/13

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Mon 4/20

8:00 am-10:45 am

1 stop16h 45m

$1,026

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 4/13

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Wed 4/22

8:00 am-8:12 pm

2 stops26h 12m

$1,035

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 4/13

6:56 am-9:15 pm

2 stops24h 19m

Seoul Gimpo Intl

Mon 4/20

8:00 am-10:45 am

1 stop16h 45m

$1,040

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 3/2

5:40 pm-10:55 am

1 stop26h 15m

Seoul Gimpo Intl

Mon 3/9

7:40 pm-8:35 am

1 stop26h 55m

$1,041

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Wed 4/15

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Mon 4/20

7:15 pm-7:20 am

1 stop26h 05m

$1,044

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Wed 4/15

2:10 pm-9:15 pm

1 stop17h 05m

Seoul Gimpo Intl

Sun 4/19

7:15 pm-7:20 am

1 stop26h 05m

$1,045

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 3/12

7:05 am-10:05 pm

2 stops25h 00m

Seoul Gimpo Intl

Thu 3/19

8:00 am-6:00 pm

2 stops24h 00m

$1,253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 28% 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.

An easier way to manage your Seoul Gimpo Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 3/15
Sun 3/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo
Flights to Incheon Intl Airportfrom $561