How long does it take to fly to Cheongju?

Flight times from Illinois to Cheongju vary, but if you’re flying out of Chicago and flying into Incheon Intl Airport (one of the most popular routes), then the duration is 15h 50m on average. Another popular route from Illinois to Cheongju is flying from Moline to Incheon Intl Airport, which will take roughly 27h 31m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Illinois to Cheongju Airport are refreshed on a daily basis.

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

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

The travel and health documents you'll need for your trip to Cheongju 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 Cheongju Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,184 Cheap Flights from Illinois to Cheongju in 2026

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9:55 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

22h 00m2 stops Toronto Pearson Intl Tokyo Narita

7:20 am - 8:12 pmCJJ Cheongju-ORD Chicago O'Hare Intl

26h 52m2 stops Tokyo Narita Montreal Pierre Elliott Trudeau Intl

$1,211Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

9:55 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

22h 00m2 stops Toronto Pearson Intl Tokyo Narita

7:20 am - 8:12 pmCJJ Cheongju-ORD Chicago O'Hare Intl

26h 52m2 stops Tokyo Narita Montreal Pierre Elliott Trudeau Intl

$1,216Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

7:11 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

24h 44m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita

7:20 am - 10:06 pmCJJ Cheongju-ORD Chicago O'Hare Intl

28h 46m3 stops Tokyo Narita Vancouver Intl Toronto Pearson Intl

$1,302Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

12:30 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

31h 25m2 stops Taipei City Taiwan Taoyuan Intl Tokyo Narita

7:20 am - 8:45 pmCJJ Cheongju-ORD Chicago O'Hare Intl

27h 25m2 stops Tokyo Narita Taipei City Taiwan Taoyuan Intl

$1,303Multiple Airlines

Sat, Sep 26 - Sun, Oct 4

7:11 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

24h 44m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita

9:30 am - 8:12 pmCJJ Cheongju-ORD Chicago O'Hare Intl

24h 42m2 stops Tokyo Narita Montreal Pierre Elliott Trudeau Intl

$1,308Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

7:11 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

24h 44m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita

7:20 am - 10:06 pmCJJ Cheongju-ORD Chicago O'Hare Intl

28h 46m3 stops Tokyo Narita Vancouver Intl Toronto Pearson Intl

$1,309Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

7:11 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

24h 44m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita

7:20 am - 10:06 pmCJJ Cheongju-ORD Chicago O'Hare Intl

28h 46m3 stops Tokyo Narita Vancouver Intl Toronto Pearson Intl

$1,312Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

7:11 am - 9:55 pmORD Chicago O'Hare Intl-CJJ Cheongju

24h 44m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita

9:30 am - 8:12 pmCJJ Cheongju-ORD Chicago O'Hare Intl

24h 42m2 stops Tokyo Narita Montreal Pierre Elliott Trudeau Intl

$1,329Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

12:30 am - 4:40 pmORD Chicago O'Hare Intl-CJJ Cheongju

26h 10m1 stop Taipei City Taiwan Taoyuan Intl

4:00 pm - 5:40 amCJJ Cheongju-ORD Chicago O'Hare Intl

27h 40m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,390Multiple Airlines

Sun, Sep 27 - Mon, Oct 5

12:30 am - 4:40 pmORD Chicago O'Hare Intl-CJJ Cheongju

26h 10m1 stop Taipei City Taiwan Taoyuan Intl

4:00 pm - 5:40 amCJJ Cheongju-ORD Chicago O'Hare Intl

27h 40m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,393Multiple Airlines

Sun, Sep 27 - Mon, Oct 5

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Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Tue 9/29

9:55 am-9:55 pm

2 stops22h 00m

Cheongju

Tue 10/6

7:20 am-8:12 pm

2 stops26h 52m

$1,211

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Tue 9/29

9:55 am-9:55 pm

2 stops22h 00m

Cheongju

Tue 10/6

7:20 am-8:12 pm

2 stops26h 52m

$1,216

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Wed 9/30

7:11 am-9:55 pm

2 stops24h 44m

Cheongju

Wed 10/7

7:20 am-10:06 pm

3 stops28h 46m

$1,302

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Sat 9/26

12:30 am-9:55 pm

2 stops31h 25m

Cheongju

Sun 10/4

7:20 am-8:45 pm

2 stops27h 25m

$1,303

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Mon 9/28

7:11 am-9:55 pm

2 stops24h 44m

Cheongju

Mon 10/5

9:30 am-8:12 pm

2 stops24h 42m

$1,308

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Wed 9/30

7:11 am-9:55 pm

2 stops24h 44m

Cheongju

Wed 10/7

7:20 am-10:06 pm

3 stops28h 46m

$1,309

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Wed 9/30

7:11 am-9:55 pm

2 stops24h 44m

Cheongju

Wed 10/7

7:20 am-10:06 pm

3 stops28h 46m

$1,312

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Mon 9/28

7:11 am-9:55 pm

2 stops24h 44m

Cheongju

Mon 10/5

9:30 am-8:12 pm

2 stops24h 42m

$1,329

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Sun 9/27

12:30 am-4:40 pm

1 stop26h 10m

Cheongju

Mon 10/5

4:00 pm-5:40 am

2 stops27h 40m

$1,390

ChicagoCheongju

ORD Chicago O'Hare Intl - CJJ Cheongju

ORDCJJ

Chicago O'Hare Intl

Sun 9/27

12:30 am-4:40 pm

1 stop26h 10m

Cheongju

Mon 10/5

4:00 pm-5:40 am

2 stops27h 40m

$1,393

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois 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

Airlines

Other information

What airlines fly to Cheongju?

Korean Air, EVA Air and Delta are the top three most popular airlines that fly to Cheongju from Illinois according to our data. Korean Air is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Cheongju. Keep in mind that there are 11 different airlines that fly to Cheongju on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to Cheongju flight deals and tips

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

Fastest flight time	31h 40m
Direct flights	None

The fastest flight from Illinois to Cheongju takes 31h 40m

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

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Frequently asked questions about flying from Illinois to Cheongju

When did momondo last update prices for flights from Illinois to Cheongju Airport?
Prices for flights from Illinois to Cheongju Airport are refreshed on a daily basis.
How old do you have to be to fly from Illinois to Cheongju 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 Cheongju Airport.
What documentation or ID do you need to fly to Cheongju Airport?
The travel and health documents you'll need for your trip to Cheongju 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 Cheongju Airport. It is always advisable to seek 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 Illinois to Cheongju?

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 Illinois to Cheongju for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Cheongju from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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