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$518+ Cheap flights from Gimpo Intl (GMP) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Gimpo Intl to Illinois

Keep the following information in mind while searching for Gimpo Intl to Illinois flight deals. Data was last updated July 31, 2025.

Round-trip from

$775
(lastminute.com)

One-way from

$518
(Mytrip)

Popular in

September

Cheapest in

February

Average price

$1,295
From Seoul Gimpo Intl to Illinois
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One-way flight from Seoul Gimpo Intl to Illinois
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Highest demand for flights based on searches. 12% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Gimpo Intl to Illinois

Cheapest flights from Gimpo Intl to Illinois
Explore the most affordable flight options available from Gimpo Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This lastminute.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:55 amGMP - ORD
1 stop15h 10mJapan Airlines
Tue 9/231:05 amORD - GMP
1 stop30h 45mJapan Airlines
Deal found 7/30$775
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:55 amGMP - ORD
2 stops19h 49mMultiple Airlines
Wed 9/246:55 amORD - GMP
2 stops21h 05mMultiple Airlines
Deal found 7/31$957
This Onlinetour deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:55 amGMP - STL
2 stops26h 37mJapan Airlines
Fri 9/198:50 amSTL - GMP
2 stops23h 00mJapan Airlines
Deal found 7/29$1,029
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:55 pmGMP - STL
2 stops32h 32mANA
Tue 10/2112:25 pmSTL - GMP
2 stops43h 55mANA
Deal found 7/30$1,233
This Japan Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:55 amGMP - STL
2 stops21h 14mMultiple Airlines
Tue 10/148:04 pmSTL - GMP
2 stops24h 41mMultiple Airlines
Deal found 7/28$1,289

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gimpo Intl to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Illinois that are best for you.

Fly from

Gimpo Intl

Fly to

Illinois

Route

Depart

Return

Price

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Thu 9/11

7:55 am-9:05 am

1 stop15h 10m

Chicago O'Hare Intl

Tue 9/23

1:05 am-9:50 pm

1 stop30h 45m

$775

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Thu 9/11

7:55 am-1:44 pm

2 stops19h 49m

Chicago O'Hare Intl

Wed 9/24

6:55 am-6:00 pm

2 stops21h 05m

$957

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Fri 9/12

7:55 am-8:32 pm

2 stops26h 37m

Lambert-St Louis

Fri 9/19

8:50 am-9:50 pm

2 stops23h 00m

$1,029

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 10/13

7:55 pm-2:27 pm

2 stops32h 32m

Lambert-St Louis

Tue 10/21

12:25 pm-10:20 pm

2 stops43h 55m

$1,233

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 9/15

7:55 am-3:09 pm

2 stops21h 14m

Lambert-St Louis

Tue 10/14

8:04 pm-10:45 am

2 stops24h 41m

$1,289

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Mon 9/8

7:40 pm-6:14 pm

3 stops36h 34m

$518

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Tue 9/16

7:55 am-9:05 am

1 stop15h 10m

$581

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Sat 9/27

1:50 pm-8:45 pm

1 stop20h 55m

$628

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Fri 8/15

7:55 am-7:09 pm

2 stops25h 14m

$1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from Gimpo Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Gimpo Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seoul Gimpo Intl Airport to Illinois
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with EVA Air, ANA, and Japan Airlines from Seoul Gimpo Intl Airport to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
922 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,536 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Gimpo Intl to Illinois that include hotel bookings?

    Yes. In addition to deals on Gimpo Intl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gimpo Intl to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gimpo Intl to Illinois.

  • Can I find deals for business class flights from Gimpo Intl to Illinois?

    Yes. Cheapflights offers flight deals from Gimpo Intl to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul Gimpo Intl Airport to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Seoul Gimpo Intl Airport to Illinois (average of $245). Flying from Seoul Gimpo Intl Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Gimpo Intl to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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