How long is the flight from Illinois to Seoul Gimpo Intl Airport?

Airlines like Japan Airlines, EVA Air, and ANA fly from Illinois to Seoul Gimpo Intl Airport in about 22h 20m. The time it takes to get you to your destination can typically vary by up to 5h 35m. There are 6517 mi between Illinois and Seoul Gimpo Intl Airport. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Seoul Gimpo Intl Airport ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul Gimpo Intl Airport when rainfall is around 1.1 in.

If weather is an important factor for your trip to Seoul Gimpo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from IL to GMP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Seoul Gimpo Intl Airport as you normally would.

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

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

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

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

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

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

$494+ Flights from Illinois to Seoul Gimpo Intl Airport

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Cheap flight deals from Illinois to Gimpo Intl

Cheapest flights from Illinois to Gimpo Intl
Explore the most affordable flight options available from Illinois to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

Sun 12/2111:30 pmORD - GMP

1 stop27h 30mEVA Air

Tue 1/207:00 pmGMP - ORD

1 stop39h 35mEVA Air

Deal found 12/16

$2,230

Tue 12/238:30 pmORD - GMP

3 stops34h 35mMultiple Airlines

Tue 12/308:00 amGMP - ORD

2 stops23h 00mMultiple Airlines

Deal found 12/16

$2,468

Mon 12/2211:30 pmORD - GMP

1 stop28h 45mEVA Air

Wed 1/218:15 pmGMP - ORD

1 stop38h 20mEVA Air

Deal found 12/17

$2,501

Tue 12/2310:30 amORD - GMP

1 stop21h 00mANA

Sat 1/2412:25 pmGMP - ORD

1 stop33h 55mANA

Deal found 12/16

$2,523

Wed 12/244:25 pmORD - GMP

1 stop39h 05mANA

Sun 1/117:50 pmGMP - ORD

1 stop33h 00mANA

Deal found 12/15

$2,590

Tue 12/166:00 amORD - GMP

2 stops25h 05mMultiple Airlines

Tue 12/238:00 amGMP - ORD

2 stops20h 36mMultiple Airlines

Deal found 12/15

$2,640

Tue 12/235:35 pmORD - GMP

1 stop26h 20mJapan Airlines

Thu 1/227:40 pmGMP - ORD

1 stop26h 55mJapan Airlines

Deal found 12/14

$2,649

Mon 12/1511:30 pmORD - GMP

1 stop28h 45mMultiple Airlines

Mon 12/227:40 pmGMP - ORD

1 stop26h 50mMultiple Airlines

Deal found 12/15

$2,702

Mon 12/2210:30 amORD - GMP

1 stop21h 00mANA

Mon 1/197:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/14

$2,789

Wed 12/244:25 pmORD - GMP

1 stop35h 10mANA

Mon 1/127:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/15

$2,926

Sat 12/204:05 pmSTL - GMP

2 stops52h 15mMultiple Airlines

Sat 12/277:40 pmGMP - STL

2 stops43h 11mMultiple Airlines

Deal found 12/15

$3,412

Fri 12/197:00 amSTL - GMP

2 stops24h 05mJapan Airlines

Sun 12/2112:05 pmGMP - STL

2 stops26h 46mJapan Airlines

Deal found 12/15

$7,690

Best flights from Illinois to Gimpo Intl
Discover carefully curated flight deals from Illinois to Gimpo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 17, 2025.

Wed 1/217:04 amSTL - GMP

2 stops24h 01mJapan Airlines

Sun 1/257:40 pmGMP - STL

2 stops43h 19mJapan Airlines

Deal found 12/16

$780

Thu 4/2312:30 amORD - GMP

1 stop22h 20mEVA Air

Sat 5/91:50 pmGMP - ORD

1 stop21h 10mEVA Air

Deal found 12/15

$1,034

Thu 1/294:25 pmORD - GMP

1 stop27h 55mANA

Thu 2/57:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/15

$1,591

Tue 4/79:05 pmORD - GMP

2 stops24h 00mMultiple Airlines

Mon 4/207:55 pmGMP - ORD

1 stop26h 45mMultiple Airlines

Deal found 12/17

$1,676

Sat 1/317:04 amSTL - GMP

2 stops36h 51mJapan Airlines

Mon 2/98:00 amGMP - STL

2 stops30h 59mJapan Airlines

Deal found 12/15

$866

Tue 1/137:04 amSTL - GMP

2 stops24h 01mJapan Airlines

Tue 1/208:00 amGMP - STL

2 stops25h 16mJapan Airlines

Deal found 12/16

$866

Sun 2/1511:30 pmORD - GMP

1 stop27h 30mEVA Air

Wed 3/188:15 pmGMP - ORD

1 stop38h 20mEVA Air

Deal found 12/15

$1,092

Sat 1/317:04 amSTL - GMP

2 stops36h 51mJapan Airlines

Sat 2/712:05 pmGMP - STL

2 stops26h 54mJapan Airlines

Deal found 12/16

$984

Sun 1/117:15 amSTL - GMP

2 stops23h 50mJapan Airlines

Sat 1/1712:05 pmGMP - STL

2 stops26h 54mJapan Airlines

Deal found 12/15

$1,056

Mon 1/1211:30 pmORD - GMP

1 stop28h 45mEVA Air

Fri 1/161:50 pmGMP - ORD

1 stop20h 45mEVA Air

Deal found 12/17

$1,323

Thu 4/237:00 amORD - GMP

2 stops38h 05mANA

Thu 4/3012:40 pmGMP - ORD

2 stops30h 25mANA

Deal found 12/15

$1,636

Fri 5/296:30 amSTL - GMP

2 stops25h 20mMultiple Airlines

Sun 6/147:40 amGMP - STL

2 stops26h 24mMultiple Airlines

Deal found 12/15

$1,697

Tue 4/145:45 pmORD - GMP

1 stop27h 20mANA

Thu 4/307:55 pmGMP - ORD

1 stop26h 45mANA

Deal found 12/14

$1,663

Wed 5/2712:30 amORD - GMP

1 stop22h 20mEVA Air

Wed 6/108:20 pmGMP - ORD

1 stop38h 40mEVA Air

Deal found 12/16

$1,534

Mon 6/86:30 amSTL - GMP

2 stops25h 20mMultiple Airlines

Tue 6/167:40 amGMP - STL

2 stops26h 24mMultiple Airlines

Deal found 12/15

$1,802

Mon 4/275:45 pmORD - GMP

1 stop34h 50mANA

Mon 5/412:40 pmGMP - ORD

1 stop34h 00mANA

Deal found 12/16

$1,677

Thu 5/286:30 amSTL - GMP

2 stops25h 20mJapan Airlines

Sat 6/137:55 amGMP - STL

2 stops19h 11mJapan Airlines

Deal found 12/15

$1,441

Mon 1/195:40 pmORD - GMP

1 stop26h 15mJapan Airlines

Wed 1/287:40 pmGMP - ORD

1 stop26h 55mJapan Airlines

Deal found 12/15

$1,628

Thu 3/198:17 amSTL - GMP

2 stops24h 13mANA

Tue 3/317:55 pmGMP - STL

2 stops32h 32mANA

Deal found 12/16

$2,107

Sun 3/86:40 pmORD - GMP

1 stop26h 15mJapan Airlines

Sun 3/1512:05 pmGMP - ORD

1 stop34h 30mJapan Airlines

Deal found 12/14

$1,661

Thu 1/295:40 pmORD - GMP

1 stop26h 15mJapan Airlines

Thu 2/57:40 pmGMP - ORD

1 stop26h 55mJapan Airlines

Deal found 12/15

$1,678

Last-minute flights from Illinois to Gimpo Intl
Discover last-minute flight deals from Illinois to Gimpo Intl. Data last updated December 17, 2025 and is based on user searches.

Sun 1/117:15 amSTL - GMP

2 stops23h 50mJapan Airlines

Sat 1/1712:05 pmGMP - STL

2 stops26h 54mJapan Airlines

Deal found 12/15

$1,056

Mon 1/1211:30 pmORD - GMP

1 stop28h 45mEVA Air

Fri 1/161:50 pmGMP - ORD

1 stop20h 45mEVA Air

Deal found 12/17

$1,323

Tue 1/137:04 amSTL - GMP

2 stops24h 01mJapan Airlines

Tue 1/208:00 amGMP - STL

2 stops25h 16mJapan Airlines

Deal found 12/16

$866

Wed 1/144:25 pmORD - GMP

1 stop27h 55mANA

Wed 1/217:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/15

$1,618

Mon 1/194:10 pmORD - GMP

2 stops29h 55mAir China

Mon 2/22:25 pmGMP - ORD

2 stops29h 50mAir China

Deal found 12/17

$1,400

Mon 1/198:00 amORD - GMP

2 stops23h 05mMultiple Airlines

Wed 1/288:00 amGMP - ORD

2 stops26h 45mMultiple Airlines

Deal found 12/15

$1,423

Wed 1/217:04 amSTL - GMP

2 stops24h 01mJapan Airlines

Sun 1/257:40 pmGMP - STL

2 stops43h 19mJapan Airlines

Deal found 12/16

$780

Wed 1/214:10 pmORD - GMP

2 stops29h 40mEVA Air

Wed 1/288:15 pmGMP - ORD

1 stop38h 20mEVA Air

Deal found 12/15

$1,118

Wed 1/214:25 pmORD - GMP

1 stop27h 55mANA

Wed 1/287:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/15

$1,622

Thu 1/294:25 pmORD - GMP

1 stop27h 55mANA

Thu 2/57:50 pmGMP - ORD

1 stop26h 30mANA

Deal found 12/15

$1,591

Fri 1/308:00 amORD - GMP

2 stops23h 05mMultiple Airlines

Fri 2/68:00 amGMP - ORD

2 stops26h 45mMultiple Airlines

Deal found 12/15

$1,492

Sat 1/317:04 amSTL - GMP

2 stops36h 51mJapan Airlines

Sat 2/712:05 pmGMP - STL

2 stops26h 54mJapan Airlines

Deal found 12/16

$984

One-way flights from Illinois to Gimpo Intl
Search for one-way flight options from Illinois to Gimpo Intl. Find affordable one-way fares based on user searches. Data last updated December 17, 2025.

Wed 1/219:11 amORD - GMP

2 stops21h 54mJapan Airlines

Deal found 12/16

$494

Fri 1/166:54 amORD - GMP

2 stops24h 11mMultiple Airlines

Deal found 12/17

$504

Sun 2/81:30 pmORD - GMP

3 stops53h 35mMultiple Airlines

Deal found 12/15

$551

Tue 1/272:35 pmORD - GMP

2 stops28h 55mMultiple Airlines

Deal found 12/15

$558

Sun 3/812:30 amORD - GMP

1 stop27h 30mEVA Air

Deal found 12/15

$564

Fri 5/296:30 amSTL - GMP

2 stops25h 20mJapan Airlines

Deal found 12/15

$570

Sun 3/87:39 pmORD - GMP

3 stops56h 51mMultiple Airlines

Deal found 12/15

$584

Tue 1/66:00 amORD - GMP

3 stops40h 00mMultiple Airlines

Deal found 12/15

$590

Thu 4/3012:30 amORD - GMP

1 stop22h 20mEVA Air

Deal found 12/14

$603

Thu 2/56:06 pmORD - GMP

3 stops47h 59mMultiple Airlines

Deal found 12/17

$622

Tue 3/176:38 amSTL - GMP

2 stops25h 27mMultiple Airlines

Deal found 12/15

$740

Fri 3/2012:14 pmSTL - GMP

3 stops59h 56mMultiple Airlines

Deal found 12/15

$799

Find flight deals from Illinois to Gimpo Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$780 (Japan Airlines)
One-way from	$494 (Japan Airlines)
Popular in	December
Cheapest in	January
Average price	$2,072

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From Illinois to Seoul Gimpo Intl

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One-way flight from Illinois to Seoul Gimpo Intl

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High demand for flights, 5% potential price rise

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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Cheapflights Fare Finder

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

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Wed 1/21

7:04 am-10:05 pm

2 stops24h 01m

Seoul Gimpo Intl

Sun 1/25

7:40 pm-11:59 pm

2 stops43h 19m

$780

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 1/31

7:04 am-10:55 am

2 stops36h 51m

Seoul Gimpo Intl

Mon 2/9

8:00 am-11:59 pm

2 stops30h 59m

$866

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Tue 1/13

7:04 am-10:05 pm

2 stops24h 01m

Seoul Gimpo Intl

Tue 1/20

8:00 am-6:16 pm

2 stops25h 16m

$866

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sat 1/31

7:04 am-10:55 am

2 stops36h 51m

Seoul Gimpo Intl

Sat 2/7

12:05 pm-11:59 pm

2 stops26h 54m

$984

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Thu 4/23

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Sat 5/9

1:50 pm-9:00 pm

1 stop21h 10m

$1,034

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Sun 1/11

7:15 am-10:05 pm

2 stops23h 50m

Seoul Gimpo Intl

Sat 1/17

12:05 pm-11:59 pm

2 stops26h 54m

$1,056

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Sun 2/15

11:30 pm-6:00 pm

1 stop27h 30m

Seoul Gimpo Intl

Wed 3/18

8:15 pm-8:35 pm

1 stop38h 20m

$1,092

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Mon 1/12

11:30 pm-7:15 pm

1 stop28h 45m

Seoul Gimpo Intl

Fri 1/16

1:50 pm-7:35 pm

1 stop20h 45m

$1,323

St. LouisSeoul

STL - GMP

STLGMP

Lambert-St Louis

Thu 5/28

6:30 am-9:50 pm

2 stops25h 20m

Seoul Gimpo Intl

Sat 6/13

7:55 am-1:06 pm

2 stops19h 11m

$1,441

ChicagoSeoul

ORD - GMP

ORDGMP

Chicago O'Hare Intl

Wed 5/27

12:30 am-12:50 pm

1 stop22h 20m

Seoul Gimpo Intl

Wed 6/10

8:20 pm-9:00 pm

1 stop38h 40m

$1,534

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 37 results

Best time to book a flight from Illinois to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Illinois 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 Illinois to Seoul Gimpo Intl Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Illinois to Seoul Gimpo Intl Airport?
Airlines like Japan Airlines, EVA Air, and ANA fly from Illinois to Seoul Gimpo Intl Airport in about 22h 20m. The time it takes to get you to your destination can typically vary by up to 5h 35m. There are 6517 mi between Illinois and Seoul Gimpo Intl Airport. This flight may include one or multiple stops.
Can I find deals for flights from Illinois to Gimpo Intl that include hotel bookings?
Yes. In addition to deals on Illinois to Gimpo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Gimpo Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Gimpo Intl.
Can I find deals for business class flights from Illinois to Gimpo Intl?
Yes. Cheapflights offers flight deals from Illinois to Gimpo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$494+ Cheap flights from Illinois to Gimpo Intl (GMP)

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Illinois to Gimpo Intl

Cheapest flights from Illinois to Gimpo IntlExplore the most affordable flight options available from Illinois to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

Explore the most affordable flight options available from Illinois to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

Find flight deals from Illinois to Gimpo Intl

Keep the following information in mind while searching for Illinois to Gimpo Intl flight deals. Data was last updated December 17, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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Use the filters below to find and compare flights from Illinois to Seoul Gimpo Intl Airport that are best for you.

Best time to book a flight from Illinois to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Seoul Gimpo Intl Airport

Related info for your journey

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

How long is the flight from Illinois to Seoul Gimpo Intl Airport?

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

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

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

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Cheapest flights from Illinois to Gimpo Intl
Explore the most affordable flight options available from Illinois to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.