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Cheap flights from Illinois to Seoul from $662

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 8/6. 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 Illinois to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
EVA Air Logo
12:30 am - 7:15 pm
ORD
-
GMP
28h 45m
1 stop
EVA Air Logo
7:15 pm - 8:45 pm
GMP
-
ORD
39h 30m
1 stop
$1,239EVA Air
Mon, Aug 24 - Tue, Sep 8
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
7:15 pm - 8:45 pm
GMP
-
ORD
39h 30m
1 stop
$1,242EVA Air
Sun, Sep 20 - Tue, Oct 13
EVA Air Logo
12:30 am - 6:10 pm
ORD
-
GMP
27h 40m
1 stop
EVA Air Logo
1:50 pm - 8:45 pm
GMP
-
ORD
20h 55m
1 stop
$1,277EVA Air
Sun, Sep 13 - Fri, Sep 18
EVA Air Logo
12:30 am - 7:15 pm
ORD
-
GMP
28h 45m
1 stop
EVA Air Logo
1:50 pm - 7:35 pm
GMP
-
ORD
20h 45m
1 stop
$1,280EVA Air
Mon, Oct 26 - Fri, Nov 6
EVA Air Logo
12:30 am - 12:50 pm
ORD
-
GMP
22h 20m
1 stop
EVA Air Logo
1:50 pm - 8:45 pm
GMP
-
ORD
20h 55m
1 stop
$1,315EVA Air
Thu, Sep 3 - Fri, Sep 18
EVA Air Logo
12:30 am - 12:50 pm
ORD
-
GMP
22h 20m
1 stop
EVA Air Logo
1:50 pm - 8:45 pm
GMP
-
ORD
20h 55m
1 stop
$1,319EVA Air
Thu, Sep 3 - Sat, Sep 12
Multiple Airlines Logo
12:30 am - 12:50 pm
ORD
-
GMP
22h 20m
1 stop
Multiple Airlines Logo
1:50 pm - 12:07 pm
GMP
-
ORD
36h 17m
2 stops
$1,426Multiple Airlines
Thu, Sep 10 - Fri, Sep 18
Japan Airlines Logo
9:31 am - 9:15 pm
STL
-
GMP
21h 44m
2 stops
Japan Airlines Logo
8:00 am - 10:56 am
GMP
-
STL
17h 56m
2 stops
$1,536Japan Airlines
Wed, Aug 19 - Thu, Dec 17
Japan Airlines Logo
7:00 am - 10:05 pm
STL
-
GMP
24h 05m
2 stops
Japan Airlines Logo
12:05 pm - 11:42 pm
GMP
-
STL
26h 37m
2 stops
$1,547Japan Airlines
Mon, Nov 9 - Mon, Nov 16
Japan Airlines Logo
7:00 am - 6:20 pm
STL
-
GMP
44h 20m
2 stops
Japan Airlines Logo
7:40 pm - 11:42 pm
GMP
-
STL
43h 02m
2 stops
$1,557Japan Airlines
Thu, Nov 12 - Mon, Nov 16

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
Aug 24
ORD12:30 amChicago O'Hare Intl
28h 45m
1 stop
GMP7:15 pmSeoul Gimpo Intl
Sep 8
GMP7:15 pmSeoul Gimpo Intl
39h 30m
1 stop
ORD8:45 pmChicago O'Hare Intl
$1,239
EVA Air
Sep 20
ORD12:30 amChicago O'Hare Intl
27h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Oct 13
GMP7:15 pmSeoul Gimpo Intl
39h 30m
1 stop
ORD8:45 pmChicago O'Hare Intl
$1,242
EVA Air
Sep 13
ORD12:30 amChicago O'Hare Intl
27h 40m
1 stop
GMP6:10 pmSeoul Gimpo Intl
Sep 18
GMP1:50 pmSeoul Gimpo Intl
20h 55m
1 stop
ORD8:45 pmChicago O'Hare Intl
$1,277

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
Sep 7
ORD2:10 pmChicago O'Hare Intl
37h 45m
1 stop
GMP5:55 pmSeoul Gimpo Intl
Nov 9
GMP7:40 pmSeoul Gimpo Intl
26h 50m
1 stop
ORD7:30 amChicago O'Hare Intl
$1,428
Japan Airlines
Sep 1
ORD2:10 pmChicago O'Hare Intl
17h 05m
1 stop
GMP9:15 pmSeoul Gimpo Intl
Sep 15
GMP8:00 amSeoul Gimpo Intl
16h 45m
1 stop
ORD10:45 amChicago O'Hare Intl
$1,440
Japan Airlines
Sep 1
ORD2:10 pmChicago O'Hare Intl
17h 05m
1 stop
GMP9:15 pmSeoul Gimpo Intl
Sep 15
GMP8:00 amSeoul Gimpo Intl
27h 25m
2 stops
ORD9:25 pmChicago O'Hare Intl
$1,443

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 May 16, 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

Mon 8/24

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Tue 9/8

7:15 pm-8:45 pm

1 stop39h 30m

$1,239

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 9/20

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Tue 10/13

7:15 pm-8:45 pm

1 stop39h 30m

$1,242

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 9/13

12:30 am-6:10 pm

1 stop27h 40m

Seoul Gimpo Intl

Fri 9/18

1:50 pm-8:45 pm

1 stop20h 55m

$1,277

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 10/26

12:30 am-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Fri 11/6

1:50 pm-7:35 pm

1 stop20h 45m

$1,280

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Thu 9/3

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Fri 9/18

1:50 pm-8:45 pm

1 stop20h 55m

$1,315

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Thu 9/3

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Sat 9/12

1:50 pm-8:45 pm

1 stop20h 55m

$1,319

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Thu 9/10

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Fri 9/18

1:50 pm-12:07 pm

2 stops36h 17m

$1,426
Quickest round-trip

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 8/19

9:31 am-9:15 pm

2 stops21h 44m

Seoul Gimpo Intl

Thu 12/17

8:00 am-10:56 am

2 stops17h 56m

$1,536

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Mon 11/9

7:00 am-10:05 pm

2 stops24h 05m

Seoul Gimpo Intl

Mon 11/16

12:05 pm-11:42 pm

2 stops26h 37m

$1,547

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 11/12

7:00 am-6:20 pm

2 stops44h 20m

Seoul Gimpo Intl

Mon 11/16

7:40 pm-11:42 pm

2 stops43h 02m

$1,557

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 4% 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.
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Frequently asked questions about flying from Illinois to Seoul Gimpo Intl Airport

  • 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 many operators does momondo search for flights from Illinois to Seoul Gimpo Intl Airport?

  • 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.

Best airlines flying from Illinois to Seoul Gimpo Intl Airport

Compare and see reviews for airlines that fly from Illinois to Seoul Gimpo Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Japan AirlinesPriceFrom $1,098Free CancellationRating
8.3
1,823 reviews
Search Japan Airlines flights

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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