When did momondo last update prices for flights from Cheongju Airport to Illinois?

Prices for flights from Cheongju Airport to Illinois were last updated today.

How old do you have to be to fly from Cheongju Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cheongju Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$709 Cheap Flights from Cheongju to Illinois in 2026

Find the cheapest flights from Cheongju to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:05 pm - 1:30 pmCJJ Cheongju-ORD Chicago O'Hare Intl

53h 25m2 stops Da Nang Hong Kong Intl

10:30 am - 9:30 pmORD Chicago O'Hare Intl-CJJ Cheongju

20h 00m1 stop Tokyo Narita

$1,606Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

11:55 pm - 1:30 pmCJJ Cheongju-ORD Chicago O'Hare Intl

27h 35m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

10:25 am - 12:25 pmORD Chicago O'Hare Intl-CJJ Cheongju

35h 00m3 stops Tokyo Narita Busan Gimhae Jeju City

$1,926Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

11:55 pm - 8:35 pmCJJ Cheongju-ORD Chicago O'Hare Intl

34h 40m1 stop Taipei City Taiwan Taoyuan Intl

10:30 am - 9:30 pmORD Chicago O'Hare Intl-CJJ Cheongju

20h 00m1 stop Tokyo Narita

$2,063Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

8:45 am - 8:35 pmCJJ Cheongju-ORD Chicago O'Hare Intl

25h 50m1 stop Taipei City Taiwan Taoyuan Intl

10:25 am - 12:25 pmORD Chicago O'Hare Intl-CJJ Cheongju

35h 00m3 stops Tokyo Narita Busan Gimhae Jeju City

$2,353Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Tue 10/27

10:05 pm-1:30 pm

2 stops53h 25m

Chicago O'Hare Intl

Tue 11/3

10:30 am-9:30 pm

1 stop20h 00m

$1,606

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Tue 10/27

11:55 pm-1:30 pm

2 stops27h 35m

Chicago O'Hare Intl

Tue 11/3

10:25 am-12:25 pm

3 stops35h 00m

$1,926

Quickest round-trip

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Tue 10/27

11:55 pm-8:35 pm

1 stop34h 40m

Chicago O'Hare Intl

Tue 11/3

10:30 am-9:30 pm

1 stop20h 00m

$2,063

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Tue 10/27

8:45 am-8:35 pm

1 stop25h 50m

Chicago O'Hare Intl

Tue 11/3

10:25 am-12:25 pm

3 stops35h 00m

$2,353

Cheapest one-way

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Wed 10/14

11:40 pm-6:34 am

3 stops44h 54m

$709

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Wed 10/14

10:30 am-6:34 am

2 stops34h 04m

$763

Quickest one-way

CheongjuChicago

CJJ Cheongju - ORD Chicago O'Hare Intl

CJJORD

Cheongju

Wed 10/14

10:30 am-8:45 pm

1 stop24h 15m

$1,249

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Cheongju to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Illinois?

Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Cheongju according to our data. Korean Air is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheap Cheongju to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cheongju to Illinois

Best Price Found	$709
Fastest flight time	34h 04m
Direct flights	None

The best one-way flight to Illinois from Cheongju in the past 72 hours is $709. The best round-trip flight deal from Cheongju to Illinois found on momondo in the last 72 hours is $1,606.

The fastest flight from Cheongju to Illinois takes 34h 04m

There are no direct flights from Cheongju to Illinois. There are no popular flight routes from Cheongju to Illinois.

Search flight deals

Frequently asked questions about flying from Cheongju to Illinois

When did momondo last update prices for flights from Cheongju Airport to Illinois?
Prices for flights from Cheongju Airport to Illinois were last updated today.
How old do you have to be to fly from Cheongju Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cheongju Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Cheongju to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cheongju to Illinois for you.

Can I find flights from Cheongju to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Cheongju with this policy.

How can momondo help me find flights from Cheongju to Illinois?

Once you have performed a search for Cheongju to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Cheongju to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Cheongju to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.