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.

$1,039 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

3:35 pm - 6:40 amORD-CJU

25h 05m1 stop

7:55 am - 1:55 pmCJU-ORD

20h 00m1 stop

$1,039Cathay Pacific

Find Deal

lun., mar. 9 - vie., mar. 13

3:35 pm - 7:10 pmORD-CJU

37h 35m1 stop

7:55 am - 1:55 pmCJU-ORD

20h 00m1 stop

$1,078Cathay Pacific

Find Deal

lun., mar. 9 - vie., mar. 13

2:35 pm - 6:05 amORD-CJU

24h 30m2 stops

10:40 pm - 12:55 pmCJU-ORD

29h 15m2 stops

$1,094Multiple Airlines

Find Deal

mié., nov. 5 - mié., nov. 12

11:50 am - 12:50 pmORD-CJU

58h 00m3 stops

1:50 pm - 6:25 pmCJU-ORD

43h 35m3 stops

$1,201Multiple Airlines

Find Deal

mié., nov. 5 - mié., nov. 12

10:30 am - 6:40 amORD-CJU

29h 10m2 stops

7:55 am - 3:10 pmCJU-ORD

46h 15m2 stops

$1,203Multiple Airlines

Find Deal

mié., nov. 5 - mié., nov. 12

2:35 pm - 6:40 amORD-CJU

25h 05m1 stop

7:55 am - 12:55 pmCJU-ORD

20h 00m1 stop

$1,224Cathay Pacific

Find Deal

mié., nov. 5 - mié., nov. 12

2:35 pm - 6:40 amORD-CJU

25h 05m1 stop

7:55 am - 12:55 pmCJU-ORD

20h 00m1 stop

$1,237Cathay Pacific

Find Deal

mié., nov. 5 - mié., nov. 12

3:25 pm - 5:25 pmORD-CJU

35h 00m2 stops

10:10 am - 7:35 pmCJU-ORD

24h 25m1 stop

$1,298Multiple Airlines

Find Deal

mié., nov. 5 - mié., nov. 12

3:25 pm - 5:25 pmORD-CJU

35h 00m2 stops

10:10 am - 7:35 pmCJU-ORD

24h 25m1 stop

$1,300Multiple Airlines

Find Deal

mié., nov. 5 - mié., nov. 12

4:00 pm - 6:20 amORD-CJU

24h 20m1 stop

7:55 am - 1:55 pmCJU-ORD

20h 00m1 stop

$1,470Cathay Pacific

Find Deal

lun., oct. 20 - dom., oct. 26

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

$1,039

Find similar

Cathay Pacific

Mar 9

ORD3:35 pmChicago O'Hare Intl

37h 35m

1 stop

CJU7:10 pmJeju City

Mar 13

CJU7:55 amJeju City

20h 00m

1 stop

ORD1:55 pmChicago O'Hare Intl

$1,078

Find similar

Cathay Pacific

Nov 5

ORD2:35 pmChicago O'Hare Intl

25h 05m

1 stop

CJU6:40 amJeju City

Nov 12

CJU7:55 amJeju City

20h 00m

1 stop

ORD12:55 pmChicago O'Hare Intl

$1,224

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

lun. 3/9

3:35 pm-6:40 am

1 stop25h 05m

Jeju City

vie. 3/13

7:55 am-1:55 pm

1 stop20h 00m

$1,039

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

lun. 3/9

3:35 pm-7:10 pm

1 stop37h 35m

Jeju City

vie. 3/13

7:55 am-1:55 pm

1 stop20h 00m

$1,078

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

2:35 pm-6:05 am

2 stops24h 30m

Jeju City

mié. 11/12

10:40 pm-12:55 pm

2 stops29h 15m

$1,094

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

11:50 am-12:50 pm

3 stops58h 00m

Jeju City

mié. 11/12

1:50 pm-6:25 pm

3 stops43h 35m

$1,201

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

10:30 am-6:40 am

2 stops29h 10m

Jeju City

mié. 11/12

7:55 am-3:10 pm

2 stops46h 15m

$1,203

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

mié. 11/12

7:55 am-12:55 pm

1 stop20h 00m

$1,224

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

mié. 11/12

7:55 am-12:55 pm

1 stop20h 00m

$1,237

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

3:25 pm-5:25 pm

2 stops35h 00m

Jeju City

mié. 11/12

10:10 am-7:35 pm

1 stop24h 25m

$1,298

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

mié. 11/5

3:25 pm-5:25 pm

2 stops35h 00m

Jeju City

mié. 11/12

10:10 am-7:35 pm

1 stop24h 25m

$1,300

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

lun. 10/20

4:00 pm-6:20 am

1 stop24h 20m

Jeju City

dom. 10/26

7:55 am-1:55 pm

1 stop20h 00m

$1,470

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

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.

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.