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$566+ 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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$1,011
(Gotogate)

One-way from

$566
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$1,486
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. 20% potential increase in price ($316 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:55 amGMP - ORD
1 stop15h 10mJapan Airlines
Wed 10/151:05 amORD - GMP
1 stop19h 40mJapan Airlines
Deal found 6/12$813
This EVA Air deal was found by Cheapflights users on 6/9. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:50 pmGMP - ORD
1 stop20h 55mEVA Air
Wed 10/112:30 amORD - GMP
1 stop22h 20mEVA Air
Deal found 6/9$1,004
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:40 pmGMP - ORD
1 stop34h 00mANA
Mon 9/225:45 pmORD - GMP
1 stop34h 50mANA
Deal found 6/12$1,011
This Ovago deal was found by Cheapflights users on 6/10. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:55 amGMP - STL
2 stops19h 28mJapan Airlines
Tue 10/148:26 amSTL - GMP
2 stops36h 19mJapan Airlines
Deal found 6/10$1,344
This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:55 pmGMP - STL
2 stops30h 33mANA
Mon 10/139:20 amSTL - GMP
2 stops23h 00mANA
Deal found 6/9$1,388
This Japan Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 9/127:55 amGMP - STL
2 stops18h 01mMultiple Airlines
Fri 10/177:23 amSTL - GMP
2 stops24h 27mMultiple Airlines
Deal found 6/11$1,423

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 June 12, 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 9/18

7:55 am-9:05 am

1 stop15h 10m

Chicago O'Hare Intl

Wed 10/15

1:05 am-10:45 am

1 stop19h 40m

$813

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Sat 9/27

1:50 pm-8:45 pm

1 stop20h 55m

Chicago O'Hare Intl

Wed 10/1

12:30 am-12:50 pm

1 stop22h 20m

$1,004

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Tue 9/2

12:40 pm-8:40 am

1 stop34h 00m

Chicago O'Hare Intl

Mon 9/22

5:45 pm-6:35 pm

1 stop34h 50m

$1,011

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Mon 9/15

7:55 am-1:23 pm

2 stops19h 28m

Lambert-St Louis

Tue 10/14

8:26 am-10:45 am

2 stops36h 19m

$1,344

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Thu 10/2

7:55 pm-12:28 pm

2 stops30h 33m

Lambert-St Louis

Mon 10/13

9:20 am-10:20 pm

2 stops23h 00m

$1,388

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Fri 9/12

7:55 am-11:56 am

2 stops18h 01m

Lambert-St Louis

Fri 10/17

7:23 am-9:50 pm

2 stops24h 27m

$1,423

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Sat 6/21

2:25 pm-6:51 am

2 stops54h 26m

$566

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Fri 10/10

1:50 pm-8:45 pm

1 stop20h 55m

$629

SeoulChicago

GMP - ORD

GMPORD

Seoul Gimpo Intl

Fri 8/29

7:55 am-9:15 am

1 stop15h 20m

$811

SeoulSt. Louis

GMP - STL

GMPSTL

Seoul Gimpo Intl

Tue 12/2

7:50 am-11:57 pm

2 stops31h 07m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
1
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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

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Get a feel of what it's like to fly with EVA Air, Japan Airlines and ANA from Seoul to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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
1,490 reviews
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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
8.3
Very good
882 reviews
EVA Air
8.4
Very good
1,202 reviews

Crew

8.6

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

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.

  • What are the cheapest airlines to fly from Seoul Gimpo Intl Airport to Illinois one-way?

    For one-way options, check prices for EVA Air. According to our data, you can fly for as low as $629. Users have also found prices from $811 and $1,296 on Japan Airlines and ANA, respectively.

  • 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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