Nonstop flight route between Circle, Alaska, United States and Rockford, Illinois, United States:

About this route:

A direct, nonstop flight between Circle City Airport (IRC), Circle, Alaska, United States and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 2,633 miles (or 4,237 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 Circle City Airport and Chicago Rockford 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 Circle City Airport and Chicago Rockford 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 Circle City Airport (IRC):

• Circle City Airport covers an area of 324 acres at an elevation of 613 feet above mean sea level.
• Because of Circle City Airport's relatively low elevation of 613 feet, planes can take off or land at Circle City 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.
• As per Federal Aviation Administration records, the airport had 303 passenger boardings in calendar year 2008, 377 enplanements in 2009, and 355 in 2010.
• The closest airport to Circle City Airport (IRC) is Central Airport (CEM), which is located 27 miles (43 kilometers) SW of IRC.
• In addition to being known as "Circle City Airport", another name for IRC is "CRC".
• Circle City Airport (IRC) currently has only 1 runway.
• The furthest airport from Circle City Airport (IRC) is Port Elizabeth International Airport (PLZ), which is located 10,196 miles (16,409 kilometers) away in Port Elizabeth, South Africa.

Facts about Chicago Rockford International Airport (RFD):

• Chicago Rockford International Airport (RFD) has 2 runways.
• After an 11-year hiatus, the airport resumed hosting airshows in 2005.
• 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.
• 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.
• Located in between the two runways, the smaller south cargo apron is home to one of the two FBOs at the airport.
• 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.
• 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.
• 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.
• RFD was once the company headquarters for Ryan International Airlines, staging many of its aircraft at the airport for charter hire.