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

Search flight deals from Illinois to Jeju-do . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Illinois to Jeju-do with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

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-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.

$940 Cheap Flights from Illinois to Jeju-do in 2025/26

1 adult

0 bags

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Find the cheapest flights from Illinois to Jeju-do

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 6:40 am

ORD

CJU

25h 05m1 stop

7:55 am - 12:55 pm

CJU

ORD

20h 00m1 stop

$940Cathay Pacific

Fri, Jan 30 - Fri, Feb 6

2:35 pm - 6:40 am

ORD

CJU

25h 05m1 stop

7:55 am - 12:55 pm

CJU

ORD

20h 00m1 stop

$965Cathay Pacific

Thu, Jan 29 - Thu, Feb 5

2:35 pm - 6:40 am

ORD

CJU

25h 05m1 stop

7:55 am - 12:55 pm

CJU

ORD

20h 00m1 stop

$1,052Cathay Pacific

Fri, Jan 30 - Fri, Feb 6

2:35 pm - 6:35 pm

ORD

CJU

37h 00m1 stop

8:00 pm - 12:55 pm

CJU

ORD

31h 55m1 stop

$1,102Cathay Pacific

Wed, Jan 21 - Sun, Jan 25

2:35 pm - 7:10 pm

ORD

CJU

37h 35m1 stop

8:00 pm - 12:55 pm

CJU

ORD

31h 55m1 stop

$1,110Cathay Pacific

Sat, Jan 31 - Sat, Feb 7

2:35 pm - 6:35 pm

ORD

CJU

37h 00m1 stop

8:00 pm - 12:55 pm

CJU

ORD

31h 55m1 stop

$1,121Cathay Pacific

Wed, Jan 21 - Sun, Jan 25

11:30 pm - 7:10 pm

ORD

CJU

28h 40m2 stops

7:55 am - 7:35 pm

CJU

ORD

26h 40m2 stops

$1,229Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

2:35 pm - 6:40 am

ORD

CJU

25h 05m1 stop

7:55 am - 7:35 pm

CJU

ORD

26h 40m2 stops

$1,243Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

2:35 pm - 7:10 pm

ORD

CJU

37h 35m1 stop

7:55 am - 7:35 pm

CJU

ORD

26h 40m2 stops

$1,245Multiple Airlines

Fri, Jan 30 - Fri, Feb 6

2:35 pm - 6:40 am

ORD

CJU

25h 05m1 stop

7:30 pm - 12:55 pm

CJU

ORD

32h 25m1 stop

$1,260Cathay Pacific

Fri, Jan 16 - Fri, Jan 23

Cathay Pacific flights from Illinois to Jeju-do

Our best Cathay Pacific deals on Illinois to Jeju-do flight tickets

Cathay Pacific

Jan 30

ORD2:35 pmChicago O'Hare Intl

25h 05m

1 stop

CJU6:40 amJeju City

Feb 6

CJU7:55 amJeju City

20h 00m

1 stop

ORD12:55 pmChicago O'Hare Intl

$940

Find similar

Cathay Pacific

Jan 29

ORD2:35 pmChicago O'Hare Intl

25h 05m

1 stop

CJU6:40 amJeju City

Feb 5

CJU7:55 amJeju City

20h 00m

1 stop

ORD12:55 pmChicago O'Hare Intl

$965

Find similar

Cathay Pacific

Jan 30

ORD2:35 pmChicago O'Hare Intl

25h 05m

1 stop

CJU6:40 amJeju City

Feb 6

CJU7:55 amJeju City

20h 00m

1 stop

ORD12:55 pmChicago O'Hare Intl

$1,052

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 2/6

7:55 am-12:55 pm

1 stop20h 00m

$940

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Thu 1/29

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Thu 2/5

7:55 am-12:55 pm

1 stop20h 00m

$965

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 2/6

7:55 am-12:55 pm

1 stop20h 00m

$1,052

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Wed 1/21

2:35 pm-6:35 pm

1 stop37h 00m

Jeju City

Sun 1/25

8:00 pm-12:55 pm

1 stop31h 55m

$1,102

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 1/31

2:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Sat 2/7

8:00 pm-12:55 pm

1 stop31h 55m

$1,110

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Wed 1/21

2:35 pm-6:35 pm

1 stop37h 00m

Jeju City

Sun 1/25

8:00 pm-12:55 pm

1 stop31h 55m

$1,121

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Sat 1/31

11:30 pm-7:10 pm

2 stops28h 40m

Jeju City

Sat 2/7

7:55 am-7:35 pm

2 stops26h 40m

$1,229

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 2/6

7:55 am-7:35 pm

2 stops26h 40m

$1,243

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/30

2:35 pm-7:10 pm

1 stop37h 35m

Jeju City

Fri 2/6

7:55 am-7:35 pm

2 stops26h 40m

$1,245

ChicagoJeju City

ORD - CJU

ORDCJU

Chicago O'Hare Intl

Fri 1/16

2:35 pm-6:40 am

1 stop25h 05m

Jeju City

Fri 1/23

7:30 pm-12:55 pm

1 stop32h 25m

$1,260

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 20m
Direct flights	None

The fastest flight from Illinois to Jeju-do takes 24h 20m

There are no direct flights from Illinois to Jeju-do. There are no popular flight routes from Illinois to Jeju-do.

Search flight deals

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.

How do I get Price Alerts for flights from Illinois to Jeju-do?
Search flight deals from Illinois to Jeju-do. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Illinois to Jeju-do with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
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.

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.