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

About this route:

A direct, nonstop flight between Stara Zagora Airport (SZR), Stara Zagora, Bulgaria and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 5,294 miles (or 8,520 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 O'Hare 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 O'Hare 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):

• 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.
• The closest airport to Stara Zagora Airport (SZR) is Haskovo Malevo Airport (HKV), which is located 28 miles (45 kilometers) S of SZR.
• 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.
• In addition to being known as "Stara Zagora Airport", other names for SZR include "Letishte Stara Zagora" and "Летище Стара Загора".

Facts about Chicago O'Hare International Airport (ORD):

• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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.
• Terminal 1 houses all United Airlines domestic flights as well as international departures, and also departures for a select number of Star Alliance partners, including Lufthansa and All Nippon Airways.
• Douglas Company's contract ended in 1945 and though plans were proposed to build commercial aircraft, the company ultimately chose to concentrate production on the west coast.
• During this era international flights used Terminal 1.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• Delta moved from Terminal 3 to Terminal 2 in 2009 in order to align its operations with merger partner Northwest Airlines.