Cheap flights from Illinois to Jeju City from $1,036

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 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Jeju City

Cheap round-trip flights

Cathay Pacific Logo
4:00 pm - 6:20 amORD-CJU
24h 20m1 stop
Cathay Pacific Logo
7:55 am - 2:25 pmCJU-ORD
20h 30m1 stop
$1,036Cathay Pacific
Find Deal
Mon, Sep 15 - Mon, Sep 22
Cathay Pacific Logo
4:00 pm - 6:20 amORD-CJU
24h 20m1 stop
Cathay Pacific Logo
7:55 am - 2:25 pmCJU-ORD
20h 30m1 stop
$1,290Cathay Pacific
Find Deal
Mon, Oct 13 - Sat, Oct 18
 Logo
4:00 pm - 6:20 amORD-CJU
24h 20m1 stop
 Logo
7:55 am - 8:45 pmCJU-ORD
26h 50m2 stops
$1,303
Find Deal
Mon, Sep 15 - Mon, Sep 22
Cathay Pacific Logo
4:00 pm - 6:20 amORD-CJU
24h 20m1 stop
Cathay Pacific Logo
7:55 am - 2:25 pmCJU-ORD
20h 30m1 stop
$1,367Cathay Pacific
Find Deal
Mon, Oct 13 - Sat, Oct 18
 Logo
1:05 am - 8:45 pmORD-CJU
29h 40m3 stops
 Logo
9:05 pm - 9:05 amCJU-ORD
26h 00m2 stops
$1,505
Find Deal
Sun, Sep 14 - Mon, Sep 22
 Logo
1:05 am - 1:50 pmORD-CJU
22h 45m2 stops
 Logo
9:05 pm - 9:05 amCJU-ORD
26h 00m2 stops
$1,515
Find Deal
Sun, Sep 14 - Mon, Sep 22
 Logo
12:10 pm - 7:30 amORD-CJU
29h 20m2 stops
 Logo
9:05 pm - 9:05 amCJU-ORD
26h 00m2 stops
$1,546
Find Deal
Mon, Sep 15 - Mon, Sep 22
 Logo
12:30 am - 5:30 pmORD-CJU
27h 00m1 stop
 Logo
12:20 pm - 8:45 pmCJU-ORD
22h 25m1 stop
$1,732
Find Deal
Sun, Sep 14 - Mon, Sep 22
 Logo
12:30 am - 5:30 pmORD-CJU
27h 00m1 stop
 Logo
7:55 am - 8:45 pmCJU-ORD
26h 50m2 stops
$1,801
Find Deal
Sun, Sep 14 - Mon, Sep 22
 Logo
12:30 am - 6:10 pmORD-CJU
27h 40m2 stops
 Logo
1:40 pm - 8:45 pmCJU-ORD
21h 05m2 stops
$2,721
Find Deal
Sun, Oct 12 - Sat, Oct 18

Cathay Pacific flights from Illinois to Jeju City

Our best Cathay Pacific deals on Illinois to Jeju City flight tickets
Cathay Pacific
Sep 15
ORD4:00 pmChicago O'Hare Intl
24h 20m
1 stop
CJU6:20 amJeju City
Sep 22
CJU7:55 amJeju City
20h 30m
1 stop
ORD2:25 pmChicago O'Hare Intl
Cathay Pacific
Oct 13
ORD4:00 pmChicago O'Hare Intl
24h 20m
1 stop
CJU6:20 amJeju City
Oct 18
CJU7:55 amJeju City
20h 30m
1 stop
ORD2:25 pmChicago O'Hare Intl
Cathay Pacific
Oct 13
ORD4:00 pmChicago O'Hare Intl
24h 20m
1 stop
CJU6:20 amJeju City
Oct 18
CJU7:55 amJeju City
20h 30m
1 stop
ORD2:25 pmChicago O'Hare Intl

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 August 5, 2025.
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

Mon 9/15

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Mon 9/22

7:55 am-2:25 pm

1 stop20h 30m

$1,036

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 10/13

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Sat 10/18

7:55 am-2:25 pm

1 stop20h 30m

$1,290

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 9/15

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Mon 9/22

7:55 am-8:45 pm

2 stops26h 50m

$1,303

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 10/13

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Sat 10/18

7:55 am-2:25 pm

1 stop20h 30m

$1,367

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 9/14

1:05 am-8:45 pm

3 stops29h 40m

Jeju City

Mon 9/22

9:05 pm-9:05 am

2 stops26h 00m

$1,505

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 9/14

1:05 am-1:50 pm

2 stops22h 45m

Jeju City

Mon 9/22

9:05 pm-9:05 am

2 stops26h 00m

$1,515

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 9/15

12:10 pm-7:30 am

2 stops29h 20m

Jeju City

Mon 9/22

9:05 pm-9:05 am

2 stops26h 00m

$1,546

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 9/14

12:30 am-5:30 pm

1 stop27h 00m

Jeju City

Mon 9/22

12:20 pm-8:45 pm

1 stop22h 25m

$1,732

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 9/14

12:30 am-5:30 pm

1 stop27h 00m

Jeju City

Mon 9/22

7:55 am-8:45 pm

2 stops26h 50m

$1,801

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 10/12

12:30 am-6:10 pm

2 stops27h 40m

Jeju City

Sat 10/18

1:40 pm-8:45 pm

2 stops21h 05m

$2,721

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

Best Price Found

$1,036

Fastest flight time

22h 45m

Direct flights

None

Airports in Jeju City

1 airport
The best flight deal from Illinois to Jeju City found on momondo in the last 72 hours is $1,036
The fastest flight from Illinois to Jeju City takes 22h 45m
There are no direct flights from Illinois to Jeju City. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Jeju City Airport.
There is 1 airport near Jeju City: Jeju City (CJU)

  • 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.


  • 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?

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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.


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