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

About this route:

A direct, nonstop flight between Kobuk Airport (OBU), Kobuk, Alaska, United States and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 2,993 miles (or 4,816 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 Kobuk 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 Kobuk 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 Kobuk Airport (OBU):

• For the 12-month period ending September 29, 2011, the airport had 5,000 aircraft operations, an average of 13 per day, 100% air taxi.
• Because of Kobuk Airport's relatively low elevation of 142 feet, planes can take off or land at Kobuk 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 furthest airport from Kobuk Airport (OBU) is George Airport (GRJ), which is located 10,163 miles (16,356 kilometers) away in George, South Africa.
• The closest airport to Kobuk Airport (OBU) is Dahl Creek Airport (DCK), which is located only 2 miles (3 kilometers) N of OBU.
• In addition to being known as "Kobuk Airport", another name for OBU is "PAOB".
• Kobuk Airport (OBU) currently has only 1 runway.

Facts about Chicago Rockford International Airport (RFD):

• 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.
• 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.
• The historic Bell Bowl, a natural amphitheater on the south side of the airport, was the venue for the 16th Wing Ding concert on May 24, 2009.
• RFD has two cargo aprons in use.
• 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.
• Chicago Rockford International Airport (RFD) has 2 runways.
• Air shows have played an integral role in the history of the Rockford Airport.