The cheapest times to fly from ORD to CJJ are

  • June 18th to October 28th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ORD to CJJ is early to mid September. Prices can be as high as $10700 for Sunday flights during early May, or as low as $2386 for Monday flights around early to mid September.


When to Fly to Cheongju-si

Flying from Chicago, IL (ORD) to Cheongju (CJJ) will usually cost between $2588 to $10700 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $2516. Due to high demand the most expensive time to fly is early May, with an average price of $9155. Planning your trip to low-cost times can easily save you $6639 on economy flights and even more on first-class flights. Generally, any price below $7268 can be considered a good price for a round-trip ORD to CJJ flight.

See below for a graph of average weekly prices for the ORD to CJJ route. All prices are for round-trip tickets in USD.

ORD to CJJ Flight Prices

Compared to other flights, the ORD to CJJ flight is more expensive than the average and costs more than the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.69, which is above average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $4370 (44%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $3083. Return trip prices are from the CJJ to ORD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ORD to CJJ can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 47 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from ORD to CJJ while comparing.

Destination alternative #1: Incheon International Airport (ICN) in Seoul

  • 78 miles (126 km) away from CJJ
  • Usually 87.01% less expensive than CJJ
  • Nonstop flights available

See ORD to ICN flights

Destination alternative #2: Gimpo International Airport (GMP) in Seoul

  • 70 miles (113 km) away from CJJ
  • Usually 85.11% less expensive than CJJ
  • 1-layover flights available

See ORD to GMP flights

Destination alternative #3: Gimhae International Airport (PUS) in Busan

  • 133 miles (214 km) away from CJJ
  • Usually 83.82% less expensive than CJJ
  • 1-layover flights available

See ORD to PUS flights

Destination alternative #4: Taegu International Airport (TAE) in Taegu

  • 86 miles (138 km) away from CJJ
  • Usually 80.37% less expensive than CJJ
  • 1-layover flights available

See ORD to TAE flights


Flight Hacking ORD to CJJ

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ORD to CJJ — but Champion Traveler does!

Hack #1: Osaka (ORD > KIX > CJJ)

  • Price for both tickets: $1094
  • Average savings: $6175 (84.95%)

See ORD to KIX flights

Hack #2: Hangzhou (ORD > HGH > CJJ)

  • Price for both tickets: $1425
  • Average savings: $5844 (80.4%)

See ORD to HGH flights

Hack #3: Shanghai (ORD > PVG > CJJ)

  • Price for both tickets: $1536
  • Average savings: $5733 (78.87%)

See ORD to PVG flights


Flight Questions Answered

Still have questions about flying from ORD to CJJ? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air China, Air France, Asiana, China Eastern, China Southern, Finnair, Korean Air, LOT, Lufthansa, SWISS, United, and potentially more during busy seasons.

How far away is it from Cheongju International Airport to Chicago O’Hare International Airport?

The distance between the two airports is roughly 6557 miles or 10552 kilometers.

How long does it take to fly from ORD to CJJ?

The real-world flight time for a nonstop ORD to CJJ flight is about 12 hour 47 minutes.

How many flights go between Chicago, IL and Cheongju?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from ORD to CJJ.


Airport Location Info


Departing Airport

Origination codeORD
Origination airport nameChicago O’Hare International Airport
CityChicago, IL
Countrythe United States

Return Airport

Destination codeCJJ
Destination airport nameCheongju International Airport
CountrySouth Korea


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.