Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Illinois to Seoul from $1,799

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Seoul departing on 8/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Illinois to Seoul

Cheap round-trip flights

 Logo
12:30 am - 9:55 pmORD-CJJ
31h 25m2 stops
 Logo
7:25 am - 9:10 pmCJJ-ORD
51h 45m2 stops
$1,799
Find Deal
Fri, Aug 1 - Sat, Aug 9
 Logo
8:40 am - 9:55 pmORD-CJJ
23h 15m2 stops
 Logo
7:30 am - 6:03 amCJJ-ORD
36h 33m3 stops
$1,893
Find Deal
Sat, Aug 2 - Sat, Aug 9
 Logo
12:15 pm - 6:45 amORD-CJJ
52h 30m2 stops
 Logo
7:30 am - 2:25 pmCJJ-ORD
20h 55m1 stop
$2,014
Find Deal
Sat, Aug 2 - Sat, Aug 9
 Logo
12:30 am - 2:35 pmORD-CJJ
24h 05m2 stops
 Logo
7:30 am - 6:03 amCJJ-ORD
36h 33m3 stops
$2,033
Find Deal
Fri, Aug 1 - Sat, Aug 9
 Logo
12:30 am - 8:55 pmORD-CJJ
30h 25m3 stops
 Logo
7:30 am - 6:03 amCJJ-ORD
36h 33m3 stops
$2,132
Find Deal
Fri, Aug 1 - Sat, Aug 9
 Logo
12:30 am - 5:40 amORD-CJJ
39h 10m1 stop
 Logo
7:30 am - 2:55 pmCJJ-ORD
45h 25m2 stops
$2,147
Find Deal
Fri, Aug 1 - Sat, Aug 9
 Logo
8:40 am - 9:55 pmORD-CJJ
23h 15m2 stops
 Logo
7:25 am - 7:29 pmCJJ-ORD
26h 04m2 stops
$2,240
Find Deal
Sat, Aug 2 - Sat, Aug 9
 Logo
12:30 am - 4:25 pmORD-CJJ
25h 55m1 stop
 Logo
7:30 am - 2:25 pmCJJ-ORD
20h 55m1 stop
$2,463
Find Deal
Fri, Aug 1 - Sat, Aug 9
 Logo
12:30 pm - 9:55 pmORD-CJJ
19h 25m1 stop
 Logo
7:25 am - 4:00 pmCJJ-ORD
22h 35m1 stop
$2,485
Find Deal
Sat, Aug 2 - Sat, Aug 9
 Logo
9:55 am - 9:05 amORD-CJJ
33h 10m3 stops
 Logo
7:30 am - 6:03 amCJJ-ORD
36h 33m3 stops
$2,568
Find Deal
Sat, Aug 2 - Sat, Aug 9

See travel insights to Seoul from

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

What airlines fly to Cheongju?

Korean Air, Air Canada and Turkish Airlines 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 55% 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.

Cheap Illinois to Cheongju flight deals and tips

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

Best Price Found

$1,799

Fastest flight time

19h 25m

Direct flights

None

Airports in Cheongju

1 airport
The best flight deal from Illinois to Cheongju found on momondo in the last 72 hours is $1,799
The fastest flight from Illinois to Cheongju takes 19h 25m
There are no direct flights from Illinois to Cheongju. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Cheongju Airport.
There is 1 airport near Cheongju: Cheongju (CJJ)

  • 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.


An easier way to manage your Cheongju trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 6/23
Mon 6/30

Find better results for your trip to South Korea