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Cheap flights from Illinois to Jeju City from $1,969

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 City departing on 8/11. 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

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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
12:30 am - 9:45 am
ORD
-
CJU
19h 15m
1 stop
Multiple Airlines Logo
12:20 pm - 9:10 pm
CJU
-
ORD
22h 50m
1 stop
$1,969Multiple Airlines
週二, 8月 11 - 週三, 8月 26
Multiple Airlines Logo
12:30 am - 9:45 am
ORD
-
CJU
19h 15m
1 stop
Multiple Airlines Logo
12:20 pm - 5:35 am
CJU
-
ORD
31h 15m
2 stops
$1,977Multiple Airlines
週二, 8月 11 - 週三, 8月 26
Multiple Airlines Logo
12:30 am - 8:50 pm
ORD
-
CJU
30h 20m
2 stops
Multiple Airlines Logo
9:35 pm - 3:45 pm
CJU
-
ORD
32h 10m
2 stops
$2,033Multiple Airlines
週二, 8月 11 - 週三, 8月 26
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
$2,278Cathay Pacific
週四, 5月 7 - 週四, 5月 14
Multiple Airlines Logo
8:10 pm - 6:30 am
ORD
-
CJU
44h 20m
2 stops
Multiple Airlines Logo
9:30 pm - 1:55 pm
CJU
-
ORD
30h 25m
1 stop
$2,299Multiple Airlines
週日, 5月 31 - 週日, 6月 7
Multiple Airlines Logo
8:10 pm - 6:30 am
ORD
-
CJU
44h 20m
2 stops
Multiple Airlines Logo
9:30 pm - 1:55 pm
CJU
-
ORD
30h 25m
1 stop
$2,323Multiple Airlines
週日, 5月 31 - 週日, 6月 7
Multiple Airlines Logo
12:30 am - 9:25 am
ORD
-
CJU
18h 55m
1 stop
Multiple Airlines Logo
7:30 am - 5:59 am
CJU
-
ORD
36h 29m
3 stops
$2,464Multiple Airlines
週六, 5月 30 - 週日, 6月 7
Multiple Airlines Logo
12:30 am - 9:25 am
ORD
-
CJU
18h 55m
1 stop
Multiple Airlines Logo
7:30 am - 5:59 am
CJU
-
ORD
36h 29m
3 stops
$2,466Multiple Airlines
週六, 5月 30 - 週日, 6月 7
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
$2,503Cathay Pacific
週四, 5月 7 - 週四, 5月 14
Multiple Airlines Logo
8:06 pm - 8:00 pm
ORD
-
CJU
33h 54m
3 stops
Multiple Airlines Logo
7:30 am - 5:59 am
CJU
-
ORD
36h 29m
3 stops
$2,505Multiple Airlines
週日, 5月 31 - 週日, 6月 7

Cathay Pacific flights from Illinois to Jeju City

Our best Cathay Pacific deals on Illinois to Jeju City flight tickets
Cathay Pacific
May 7
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
May 14
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$2,278
Cathay Pacific
May 7
ORD4:15 pmChicago O'Hare Intl
24h 15m
1 stop
CJU6:30 amJeju City
May 14
CJU7:30 amJeju City
20h 25m
1 stop
ORD1:55 pmChicago O'Hare Intl
$2,503

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 4月 20, 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

Cheapest round-trip
Quickest round-trip

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週二 8/11

12:30 am-9:45 am

1 stop19h 15m

Jeju City

週三 8/26

12:20 pm-9:10 pm

1 stop22h 50m

$1,969

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週二 8/11

12:30 am-9:45 am

1 stop19h 15m

Jeju City

週三 8/26

12:20 pm-5:35 am

2 stops31h 15m

$1,977

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週二 8/11

12:30 am-8:50 pm

2 stops30h 20m

Jeju City

週三 8/26

9:35 pm-3:45 pm

2 stops32h 10m

$2,033

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週四 5/7

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

週四 5/14

7:30 am-1:55 pm

1 stop20h 25m

$2,278

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週日 5/31

8:10 pm-6:30 am

2 stops44h 20m

Jeju City

週日 6/7

9:30 pm-1:55 pm

1 stop30h 25m

$2,299

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週日 5/31

8:10 pm-6:30 am

2 stops44h 20m

Jeju City

週日 6/7

9:30 pm-1:55 pm

1 stop30h 25m

$2,323

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週六 5/30

12:30 am-9:25 am

1 stop18h 55m

Jeju City

週日 6/7

7:30 am-5:59 am

3 stops36h 29m

$2,464

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週六 5/30

12:30 am-9:25 am

1 stop18h 55m

Jeju City

週日 6/7

7:30 am-5:59 am

3 stops36h 29m

$2,466

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週四 5/7

4:15 pm-6:30 am

1 stop24h 15m

Jeju City

週四 5/14

7:30 am-1:55 pm

1 stop20h 25m

$2,503

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

週日 5/31

8:06 pm-8:00 pm

3 stops33h 54m

Jeju City

週日 6/7

7:30 am-5:59 am

3 stops36h 29m

$2,505

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Frequently asked questions about flying from Illinois to Jeju City

  • 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.

Frequently asked questions about flying from Illinois to Jeju City

  • How do I get Price Alerts for flights from Illinois to Jeju City?

    Price Alerts will notify you by email when the price for flights to Jeju City from Illinois decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Illinois to Jeju City with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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

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週三 5/20
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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