Nonstop flight route between Rockford, Illinois, United States and Spearfish, South Dakota, United States:

About this route:

A direct, nonstop flight between Chicago Rockford International Airport (RFD), Rockford, Illinois, United States and Black Hills Airport (SPF), Spearfish, South Dakota, United States would travel a Great Circle distance of 754 miles (or 1,213 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 relatively short distance between Chicago Rockford International Airport and Black Hills Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Chicago Rockford International Airport (RFD):

• RFD traces its history back to 1917, when Camp Grant was established during World War I as an U.S.
• Chicago Rockford International Airport (RFD) has 2 runways.
• RFD was once the company headquarters for Ryan International Airlines, staging many of its aircraft at the airport for charter hire.
• 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.
• 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.
• In an effort to capitalize on the airport's location from downtown Chicago and about 30 miles from the outermost Chicago suburbs), its name was changed to the Northwest Chicagoland Regional Airport at Rockford in the early 2000s.
• 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.

Facts about Black Hills Airport (SPF):

• In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".
• The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.
• Black Hills Airport (SPF) has 4 runways.
• The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.