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

Prices for flights from Chicago to Cheongju Airport are updated daily.

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

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 Chicago to Cheongju Airport.

What documentation or ID do you need to fly to Cheongju Airport?

The necessary travel and health documents for your Cheongju Airport 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.

$667 Cheap Flights from Chicago to Cheongju in 2026

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Find the cheapest flights from Chicago to Seoul

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:30 am - 6:05 am

ORD

CJJ

39h 35m

1 stop

11:40 pm - 10:04 pm

CJJ

ORD

36h 24m

2 stops

$1,581Multiple Airlines

Mon, Apr 27 - Tue, May 5

12:30 am - 6:05 am

ORD

CJJ

39h 35m

1 stop

11:40 pm - 9:00 pm

CJJ

ORD

35h 20m

1 stop

$2,114Multiple Airlines

Mon, Apr 27 - Tue, May 5

11:50 am - 8:30 am

ORD

CJJ

30h 40m

2 stops

10:30 am - 5:11 pm

CJJ

ORD

44h 41m

3 stops

$13,598Multiple Airlines

Tue, Apr 28 - Tue, May 5

11:50 am - 8:30 am

ORD

CJJ

30h 40m

2 stops

7:20 am - 9:00 pm

CJJ

ORD

27h 40m

2 stops

$13,626Multiple Airlines

Tue, Apr 28 - Tue, May 5

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Mon 4/27

12:30 am-6:05 am

1 stop39h 35m

Cheongju

Tue 5/5

11:40 pm-10:04 pm

2 stops36h 24m

$1,581

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Mon 4/27

12:30 am-6:05 am

1 stop39h 35m

Cheongju

Tue 5/5

11:40 pm-9:00 pm

1 stop35h 20m

$2,114

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Tue 4/28

11:50 am-8:30 am

2 stops30h 40m

Cheongju

Tue 5/5

10:30 am-5:11 pm

3 stops44h 41m

$13,598

Quickest round-trip

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Tue 4/28

11:50 am-8:30 am

2 stops30h 40m

Cheongju

Tue 5/5

7:20 am-9:00 pm

2 stops27h 40m

$13,626

Cheapest one-way

Quickest one-way

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Mon 4/27

5:52 pm-4:40 pm

2 stops32h 48m

$667

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Sun 4/26

12:30 am-6:05 am

1 stop39h 35m

$792

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Sun 5/17

6:00 am-11:00 pm

3 stops51h 00m

$881

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Sun 5/17

2:39 pm-6:05 am

2 stops49h 26m

$1,058

ChicagoCheongju

ORD - CJJ

ORDCJJ

Chicago O'Hare Intl

Sat 5/16

12:30 am-6:05 am

1 stop39h 35m

$1,676

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Chicago to Cheongju

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 Cheongju?

Korean Air, Delta and EVA Air are the top three most popular airlines that fly to Cheongju from Chicago according to our data. Korean Air is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Cheongju. Keep in mind that there are 10 different airlines that fly to Cheongju on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago to Cheongju

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Cheongju according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Cheongju (CHI to CJJ) flight deals and tips

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

Fastest flight time	43h 17m
Direct flights	None

The fastest flight from Chicago to Cheongju takes 43h 17m

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

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How far is Chicago to Cheongju by plane?
The distance between Chicago and Cheongju is about 6572.1 mi. In terms of flight time, this usually takes a little over 43h 17m.
When did momondo last update prices for flights from Chicago to Cheongju Airport?
Prices for flights from Chicago to Cheongju Airport are updated daily.
How old do you have to be to fly from Chicago to Cheongju Airport?
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 Chicago to Cheongju Airport.
What documentation or ID do you need to fly to Cheongju Airport?
The necessary travel and health documents for your Cheongju Airport 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 Chicago to Cheongju?

It is quick and easy to find Chicago to Cheongju 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 Cheongju that suits you.

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

Yes. momondo allows you to filter the results for Chicago to Cheongju flights to just show those with flexible booking policies.

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

Once all potential Chicago to Cheongju 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 Chicago to Cheongju right now. Can momondo alert me if prices change?

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