Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Illinois to Jeju City from $460

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 Jeju City departing on 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Jeju City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 pm - 5:30 pm
ORD
-
CJU
31h 20m
2 stops
Multiple Airlines Logo
12:20 pm - 9:40 am
CJU
-
ORD
35h 20m
2 stops
$1,178Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
6:00 am - 5:30 pm
ORD
-
CJU
45h 30m
2 stops
Multiple Airlines Logo
12:20 pm - 6:40 am
CJU
-
ORD
32h 20m
2 stops
$1,191Multiple Airlines
Sat, Apr 25 - Sat, May 9
Multiple Airlines Logo
2:10 pm - 7:00 pm
ORD
-
CJU
62h 50m
2 stops
Multiple Airlines Logo
3:05 pm - 10:45 am
CJU
-
ORD
33h 40m
2 stops
$1,209Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
7:30 am - 1:55 pm
CJU
-
ORD
20h 25m
1 stop
$1,237Cathay Pacific
Sun, Apr 19 - Mon, Apr 27
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
7:30 am - 1:55 pm
CJU
-
ORD
20h 25m
1 stop
$1,240Cathay Pacific
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
8:00 am - 5:30 pm
ORD
-
CJU
43h 30m
2 stops
Multiple Airlines Logo
12:20 pm - 6:40 am
CJU
-
ORD
32h 20m
2 stops
$1,249Multiple Airlines
Sat, Apr 25 - Sat, May 9
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
7:30 am - 1:55 pm
CJU
-
ORD
20h 25m
1 stop
$1,262Cathay Pacific
Mon, Apr 20 - Tue, Apr 28
Multiple Airlines Logo
12:30 am - 6:30 am
ORD
-
CJU
40h 00m
2 stops
Multiple Airlines Logo
7:30 am - 9:00 pm
CJU
-
ORD
51h 30m
2 stops
$1,264Multiple Airlines
Mon, Apr 6 - Tue, Apr 14
Multiple Airlines Logo
7:00 am - 6:30 am
ORD
-
CJU
33h 30m
3 stops
Multiple Airlines Logo
7:30 am - 8:40 am
CJU
-
ORD
39h 10m
2 stops
$1,279Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
12:30 am - 8:35 pm
ORD
-
CJU
30h 05m
2 stops
Multiple Airlines Logo
7:30 am - 4:04 pm
CJU
-
ORD
46h 34m
3 stops
$1,291Multiple Airlines
Mon, Apr 6 - Tue, Apr 14

Cathay Pacific flights from Illinois to Jeju City

Our best Cathay Pacific deals on Illinois to Jeju City flight tickets
Cathay Pacific
Apr 19
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
Apr 27
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$1,237
Cathay Pacific
Apr 7
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
Apr 14
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$1,240
Cathay Pacific
Apr 20
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
Apr 28
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$1,262

Air China flights from Illinois to Jeju City

Our best Air China deals on Illinois to Jeju City flight tickets
Air China
Apr 21
ORD8:40 amChicago O'Hare Intl
39h 15m
2 stops
CJU1:55 pmJeju City
Apr 28
CJU3:00 pmJeju City
36h 15m
2 stops
ORD1:15 pmChicago O'Hare Intl
$1,526
Air China
Apr 20
ORD4:00 pmChicago O'Hare Intl
39h 05m
2 stops
CJU9:05 pmJeju City
Apr 28
CJU3:00 pmJeju City
36h 15m
2 stops
ORD1:15 pmChicago O'Hare Intl
$1,551

momondo 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, momondo users made 832,500 searches. Data last updated February 26, 2026.
Use the filters below to find and compare flights from Illinois to Jeju City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 4/11

8:10 pm-5:30 pm

2 stops31h 20m

Jeju City

Sat 4/18

12:20 pm-9:40 am

2 stops35h 20m

$1,178

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 4/25

6:00 am-5:30 pm

2 stops45h 30m

Jeju City

Sat 5/9

12:20 pm-6:40 am

2 stops32h 20m

$1,191

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Wed 4/8

2:10 pm-7:00 pm

2 stops62h 50m

Jeju City

Wed 4/15

3:05 pm-10:45 am

2 stops33h 40m

$1,209

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/19

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Mon 4/27

7:30 am-1:55 pm

1 stop20h 25m

$1,237

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Tue 4/7

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Tue 4/14

7:30 am-1:55 pm

1 stop20h 25m

$1,240

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 4/25

8:00 am-5:30 pm

2 stops43h 30m

Jeju City

Sat 5/9

12:20 pm-6:40 am

2 stops32h 20m

$1,249

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 4/20

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Tue 4/28

7:30 am-1:55 pm

1 stop20h 25m

$1,262

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 4/6

12:30 am-6:30 am

2 stops40h 00m

Jeju City

Tue 4/14

7:30 am-9:00 pm

2 stops51h 30m

$1,264

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Wed 4/8

7:00 am-6:30 am

3 stops33h 30m

Jeju City

Wed 4/15

7:30 am-8:40 am

2 stops39h 10m

$1,279

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 4/6

12:30 am-8:35 pm

2 stops30h 05m

Jeju City

Tue 4/14

7:30 am-4:04 pm

3 stops46h 34m

$1,291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Jeju City from

How to get the cheapest flight ticket from Illinois to Jeju City

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

What is the cheapest airline that flies from Illinois to Jeju City?

Cathay Pacific is the most popular carrier operating from Illinois to Jeju City

Cheap Illinois to Jeju City flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Jeju City

Fastest flight time

24h 15m

Direct flights

None
The fastest flight from Illinois to Jeju City takes 24h 15m
There are no direct flights from Illinois to Jeju City. There are no popular flight routes from Illinois to Jeju City.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Jeju City Airport?

    Prices for flights from Illinois to Jeju City Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Illinois to Jeju City 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 Jeju City Airport.

  • What documentation or ID do you need to fly to Jeju City Airport?

    The travel and health documents you'll need for your trip to Jeju City Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jeju City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Jeju City?

Book flights to Jeju City if you plan to visit one of these locations
Seogwipo

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Jeju City?

It is quick and easy to find Illinois to Jeju City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Jeju City that suits you.

Can I find flights from Illinois to Jeju City with flexible booking policies on momondo?

Flights from Illinois to Jeju City with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Jeju City?

Once all potential Illinois to Jeju City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Jeju City right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Jeju City flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Jeju City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 3/28
Sat 4/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Korea

Cabin classes currently available on flights to Jeju City

List of cabin classes available on flights landing in Jeju City. Availability may vary depending on flight origin and airline.
First Class to Jeju City
Business Class to Jeju City