Nonstop flight route between Stara Zagora, Bulgaria and Rockford, Illinois, United States:

About this route:

A direct, nonstop flight between Stara Zagora Airport (SZR), Stara Zagora, Bulgaria and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 5,326 miles (or 8,571 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 Stara Zagora 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 Stara Zagora 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 Stara Zagora Airport (SZR):

• In addition to being known as "Stara Zagora Airport", other names for SZR include "Letishte Stara Zagora" and "Летище Стара Загора".
• Because of Stara Zagora Airport's relatively low elevation of 643 feet, planes can take off or land at Stara Zagora 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 closest airport to Stara Zagora Airport (SZR) is Haskovo Malevo Airport (HKV), which is located 28 miles (45 kilometers) S of SZR.
• The furthest airport from Stara Zagora Airport (SZR) is Chatham Islands (CHT), which is located 11,320 miles (18,218 kilometers) away in Waitangi, Chatham Islands, New Zealand.

Facts about Chicago Rockford International Airport (RFD):

• 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.
• Following the war, the state of Illinois adopted the Airport Authority Act.
• 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.
• 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.
• Air shows have played an integral role in the history of the Rockford Airport.
• Located in between the two runways, the smaller south cargo apron is home to one of the two FBOs at the airport.
• The airport is in a foreign-trade zone.
• Chicago Rockford International Airport, is a general aviation and commercial airport in Winnebago County, Illinois.
• 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.