Nonstop flight route between Rockford, Illinois, United States and Jeju, South Korea:

About this route:

A direct, nonstop flight between Chicago Rockford International Airport (RFD), Rockford, Illinois, United States and Jeju International Airport (CJU), Jeju, South Korea would travel a Great Circle distance of 6,740 miles (or 10,848 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Chicago Rockford International Airport and Jeju International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Chicago Rockford International Airport and Jeju International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Chicago Rockford International Airport (RFD):

• After an 11-year hiatus, the airport resumed hosting airshows in 2005.
• The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
• Chicago Rockford International Airport (RFD) has 2 runways.
• Air shows have played an integral role in the history of the Rockford Airport.
• Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The larger north cargo apron is next to the main terminal.
• Today the Rockford airport is marketed to residents of Rockford and surrounding areas as an alternative to Chicago Midway International Airport and O'Hare International Airport in Chicago, Mitchell International Airport in Milwaukee, WI and Dane County Regional Airport in Madison, Wisconsin as well as limited service airports such as Dubuque Regional Airport in Iowa.
• The current terminal was built in 1987 in an effort to expand airline service in Rockford, but the common use of bus service to O'Hare International Airport kept most airlines away from Rockford.
• The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.

Facts about Jeju International Airport (CJU):

• Because of Jeju International Airport's relatively low elevation of 118 feet, planes can take off or land at Jeju International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Jeju International Airport handled 20,055,238 passengers last year.
• Jeju International Airport (CJU) has 2 runways.
• In addition to being known as "Jeju International Airport", other names for CJU include "제주국제공항 濟州國際空港", "Jeju Gukje Gonghang" and "Cheju Kukche Konghang".
• The closest airport to Jeju International Airport (CJU) is Jeongseok / Jungseok Airport (JDG), which is located only 15 miles (24 kilometers) ESE of CJU.
• The furthest airport from Jeju International Airport (CJU) is Treinta y Tres Airport (TYT), which is nearly antipodal to Jeju International Airport (meaning Jeju International Airport is almost on the exact opposite side of the Earth from Treinta y Tres Airport), and is located 12,384 miles (19,929 kilometers) away in Treinta y Tres, Treinta y Tres, Uruguay.