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.

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.

$927 Cheap Flights from Illinois to Jeju City in 2025/26

1 adult

0 bags

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Find the cheapest flights from Illinois to Jeju City

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 pm - 6:40 amORD-CJU

25h 05m1 stop

7:55 am - 1:55 pmCJU-ORD

20h 00m1 stop

$927Cathay Pacific

Find Deal

Mon, Mar 9 - Fri, Mar 13

12:30 am - 8:35 pmORD-CJU

30h 05m2 stops

7:55 am - 9:00 pmCJU-ORD

27h 05m2 stops

$1,568Multiple Airlines

Find Deal

Sat, Apr 4 - Thu, Apr 9

4:00 pm - 6:20 amORD-CJU

24h 20m1 stop

7:55 am - 9:00 pmCJU-ORD

27h 05m2 stops

$1,644Multiple Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

12:30 am - 2:00 pmORD-CJU

23h 30m2 stops

5:00 pm - 2:25 pmCJU-ORD

35h 25m3 stops

$1,697Multiple Airlines

Find Deal

Sat, Apr 4 - Thu, Apr 9

4:00 pm - 6:20 amORD-CJU

24h 20m1 stop

7:55 am - 2:25 pmCJU-ORD

20h 30m1 stop

$1,728Cathay Pacific

Find Deal

Sun, Apr 5 - Thu, Apr 9

7:10 am - 7:25 amORD-CJU

34h 15m3 stops

7:55 am - 9:00 pmCJU-ORD

27h 05m2 stops

$1,778Multiple Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

12:10 pm - 7:25 amORD-CJU

29h 15m2 stops

7:55 am - 9:00 pmCJU-ORD

27h 05m2 stops

$1,782Multiple Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

7:00 am - 10:15 pmORD-CJU

25h 15m2 stops

3:05 pm - 12:54 amCJU-ORD

23h 49m2 stops

$1,795Asiana Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

8:40 am - 7:25 amORD-CJU

32h 45m3 stops

4:55 pm - 2:25 pmCJU-ORD

35h 30m3 stops

$1,882Multiple Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

12:20 pm - 9:35 amORD-CJU

31h 15m1 stop

7:10 pm - 9:40 amCJU-ORD

28h 30m1 stop

$2,392Korean Air

Find Deal

Sun, Apr 5 - Thu, Apr 9

Cathay Pacific flights from Illinois to Jeju City

Our best Cathay Pacific deals on Illinois to Jeju City flight tickets

Cathay Pacific

Mar 9

ORD3:35 pmChicago O'Hare Intl

25h 05m

1 stop

CJU6:40 amJeju City

Mar 13

CJU7:55 amJeju City

20h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$927

Find similar

Cathay Pacific

Apr 5

ORD4:00 pmChicago O'Hare Intl

24h 20m

1 stop

CJU6:20 amJeju City

Apr 9

CJU7:55 amJeju City

20h 30m

1 stop

ORD2:25 pmChicago O'Hare Intl

$1,728

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Mon 3/9

3:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 3/13

7:55 am-1:55 pm

1 stop20h 00m

$927

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 4/4

12:30 am-8:35 pm

2 stops30h 05m

Jeju City

Thu 4/9

7:55 am-9:00 pm

2 stops27h 05m

$1,568

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Thu 4/9

7:55 am-9:00 pm

2 stops27h 05m

$1,644

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 4/4

12:30 am-2:00 pm

2 stops23h 30m

Jeju City

Thu 4/9

5:00 pm-2:25 pm

3 stops35h 25m

$1,697

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

Thu 4/9

7:55 am-2:25 pm

1 stop20h 30m

$1,728

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

7:10 am-7:25 am

3 stops34h 15m

Jeju City

Thu 4/9

7:55 am-9:00 pm

2 stops27h 05m

$1,778

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

12:10 pm-7:25 am

2 stops29h 15m

Jeju City

Thu 4/9

7:55 am-9:00 pm

2 stops27h 05m

$1,782

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

7:00 am-10:15 pm

2 stops25h 15m

Jeju City

Thu 4/9

3:05 pm-12:54 am

2 stops23h 49m

$1,795

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

8:40 am-7:25 am

3 stops32h 45m

Jeju City

Thu 4/9

4:55 pm-2:25 pm

3 stops35h 30m

$1,882

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sun 4/5

12:20 pm-9:35 am

1 stop31h 15m

Jeju City

Thu 4/9

7:10 pm-9:40 am

1 stop28h 30m

$2,392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted 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

Direct flights	None

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.

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.

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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.