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Jeju City

$940+ Cheap flights from Illinois to Jeju City (CJU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Illinois to Jeju City

Best flights from Illinois to Jeju City
Discover carefully curated flight deals from Illinois to Jeju City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Bravofly deal was found by Cheapflights users on 12/16. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:35 pmORD - CJU
1 stop25h 05mCathay Pacific
Fri 2/67:55 amCJU - ORD
1 stop20h 00mCathay Pacific
Deal found 12/16$940
This Trip.com deal was found by Cheapflights users on 12/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:30 pmORD - CJU
2 stops28h 40mMultiple Airlines
Sat 2/77:55 amCJU - ORD
2 stops26h 40mMultiple Airlines
Deal found 12/17$1,229
This Cathay Pacific deal was found by Cheapflights users on 12/15. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/212:35 pmORD - CJU
1 stop37h 00mCathay Pacific
Sun 1/258:00 pmCJU - ORD
1 stop31h 55mCathay Pacific
Deal found 12/15$1,102
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/312:35 pmORD - CJU
1 stop37h 35mCathay Pacific
Sat 2/78:00 pmCJU - ORD
1 stop31h 55mCathay Pacific
Deal found 12/17$1,110
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Fri 1/302:35 pmORD - CJU
1 stop25h 05mMultiple Airlines
Fri 2/67:55 amCJU - ORD
2 stops26h 40mMultiple Airlines
Deal found 12/16$1,243
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/162:35 pmORD - CJU
1 stop25h 05mCathay Pacific
Fri 1/237:30 pmCJU - ORD
1 stop32h 25mCathay Pacific
Deal found 12/17$1,260

Find flight deals from Illinois to Jeju City

Keep the following information in mind while searching for Illinois to Jeju City flight deals. Data was last updated December 18, 2025.

Round-trip from

$940
(Bravofly)
From Illinois to Jeju City
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Jeju City 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 December 18, 2025.
Use the filters below to find and compare flights from Illinois to Jeju City that are best for you.

Fly from

Illinois

Fly to

Jeju City

Route

Depart

Return

Price

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 2/6

7:55 am-12:55 pm

1 stop20h 00m

$940

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Wed 1/21

2:35 pm-6:35 pm

1 stop37h 00m

Jeju City

Sun 1/25

8:00 pm-12:55 pm

1 stop31h 55m

$1,102

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 1/31

2:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Sat 2/7

8:00 pm-12:55 pm

1 stop31h 55m

$1,110

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 1/31

11:30 pm-7:10 pm

2 stops28h 40m

Jeju City

Sat 2/7

7:55 am-7:35 pm

2 stops26h 40m

$1,229

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 2/6

7:55 am-7:35 pm

2 stops26h 40m

$1,243

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/16

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 1/23

7:30 pm-12:55 pm

1 stop32h 25m

$1,260

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Illinois to Jeju City

Have a flexible travel schedule? Discover the best time to fly to Jeju City 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 Jeju City
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Jeju City from Illinois?

    Most people fly into Jeju City (CJU) if they book a flight to Jeju City from Illinois. Jeju is conveniently located just 1.7 mi from Jeju City’s city center.

  • How long is the flight from Illinois to Jeju City?

    A quick flight from Illinois to Jeju City can take about 25h 05m. Cathay Pacific provides one of the quickest options available for as low as $940. Illinois and Jeju City are separated by a distance of 6778 mi.

  • Can I find deals for flights from Illinois to Jeju City that include hotel bookings?

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

  • How can I find direct flights from Illinois to Jeju City?

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

  • Can I find deals for business class flights from Illinois to Jeju City?

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

See more FAQs

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