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Cheap flights from Illinois to Jeju-do from $1,108

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Jeju-do departing on 10/29. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Jeju-do

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
3:35 pm - 7:10 pm
ORD
-
CJU
37h 35m
1 stop
Cathay Pacific Logo
8:00 pm - 12:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,108Cathay Pacific
Thu, Oct 29 - Fri, Nov 6
Cathay Pacific Logo
4:00 pm - 6:30 am
ORD
-
CJU
24h 30m
1 stop
Cathay Pacific Logo
7:30 am - 1:55 pm
CJU
-
ORD
20h 25m
1 stop
$1,153Cathay Pacific
Sat, Sep 5 - Thu, Sep 17
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
8:00 pm - 1:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,231Cathay Pacific
Tue, Oct 20 - Tue, Oct 27
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
8:00 pm - 1:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,240Cathay Pacific
Tue, Oct 20 - Thu, Oct 29
Cathay Pacific Logo
4:00 pm - 12:35 pm
ORD
-
CJU
30h 35m
1 stop
Cathay Pacific Logo
7:30 am - 2:20 pm
CJU
-
ORD
20h 50m
1 stop
$1,253Cathay Pacific
Thu, Aug 20 - Wed, Sep 2
Cathay Pacific Logo
2:35 pm - 6:40 am
ORD
-
CJU
25h 05m
1 stop
Cathay Pacific Logo
7:55 am - 12:55 pm
CJU
-
ORD
20h 00m
1 stop
$1,256Cathay Pacific
Sun, Nov 1 - Fri, Nov 6
Cathay Pacific Logo
2:35 pm - 7:10 pm
ORD
-
CJU
37h 35m
1 stop
Cathay Pacific Logo
8:00 pm - 12:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,281Cathay Pacific
Sun, Nov 1 - Tue, Nov 10
Cathay Pacific Logo
3:35 pm - 6:40 am
ORD
-
CJU
25h 05m
1 stop
Cathay Pacific Logo
8:00 pm - 12:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,290Cathay Pacific
Fri, Oct 30 - Thu, Nov 5
Cathay Pacific Logo
4:15 pm - 6:30 am
ORD
-
CJU
24h 15m
1 stop
Cathay Pacific Logo
8:00 pm - 12:55 pm
CJU
-
ORD
31h 55m
1 stop
$1,306Cathay Pacific
Tue, Oct 20 - Sun, Nov 1
Cathay Pacific Logo
2:35 pm - 7:10 pm
ORD
-
CJU
37h 35m
1 stop
Cathay Pacific Logo
7:55 am - 12:55 pm
CJU
-
ORD
20h 00m
1 stop
$1,315Cathay Pacific
Tue, Nov 3 - Fri, Nov 13

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Cathay Pacific flights from Illinois to Jeju-do

Our best Cathay Pacific deals on Illinois to Jeju-do flight tickets
Cathay Pacific
Oct 29
ORD3:35 pmChicago O'Hare Intl
37h 35m
1 stop
CJU7:10 pmJeju City
Nov 6
CJU8:00 pmJeju City
31h 55m
1 stop
ORD12:55 pmChicago O'Hare Intl
$1,108
Cathay Pacific
Sep 5
ORD4:00 pmChicago O'Hare Intl
24h 30m
1 stop
CJU6:30 amJeju City
Sep 17
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$1,153
Cathay Pacific
Oct 20
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
Oct 27
CJU8:00 pmJeju City
31h 55m
1 stop
ORD1:55 pmChicago O'Hare Intl
$1,231

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Jeju-do 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 July 4, 2026.
Use the filters below to find and compare flights from Illinois to Jeju-do that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Thu 10/29

3:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Fri 11/6

8:00 pm-12:55 pm

1 stop31h 55m

$1,108
Quickest round-trip

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 9/5

4:00 pm-6:30 am

1 stop24h 30m

Jeju City

Thu 9/17

7:30 am-1:55 pm

1 stop20h 25m

$1,153

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Tue 10/20

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Tue 10/27

8:00 pm-1:55 pm

1 stop31h 55m

$1,231

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Tue 10/20

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Thu 10/29

8:00 pm-1:55 pm

1 stop31h 55m

$1,240

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Thu 8/20

4:00 pm-12:35 pm

1 stop30h 35m

Jeju City

Wed 9/2

7:30 am-2:20 pm

1 stop20h 50m

$1,253

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 11/1

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 11/6

7:55 am-12:55 pm

1 stop20h 00m

$1,256

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 11/1

2:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Tue 11/10

8:00 pm-12:55 pm

1 stop31h 55m

$1,281

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 10/30

3:35 pm-6:40 am

1 stop25h 05m

Jeju City

Thu 11/5

8:00 pm-12:55 pm

1 stop31h 55m

$1,290

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Tue 10/20

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

Sun 11/1

8:00 pm-12:55 pm

1 stop31h 55m

$1,306

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Tue 11/3

2:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Fri 11/13

7:55 am-12:55 pm

1 stop20h 00m

$1,315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Jeju-do from

How to get the cheapest flight ticket from Illinois to Jeju-do

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-do?

Cathay Pacific and Korean Air are the most popular carriers operating from Illinois to Jeju-do

Cheap Illinois to Jeju-do flight deals and tips

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

Fastest flight time

24h 30m

Direct flights

None
The fastest flight from Illinois to Jeju-do takes 24h 30m
There are no direct flights from Illinois to Jeju-do. There are no popular flight routes from Illinois to Jeju-do.
Search flight deals

Frequently asked questions about flying from Illinois to Jeju-do

  • When did momondo last update prices for flights from Illinois to Jeju-do?

    Prices for flights from Illinois to Jeju-do are updated daily.

  • How old do you have to be to fly from Illinois to Jeju-do?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Jeju-do.

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

    The travel and health documents required for your trip to Jeju-do can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Jeju-do. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Jeju-do. momondo saves you time and could save you money on your trip.

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

All flight searches from Illinois to Jeju-do on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Illinois and Jeju-do by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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