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

About this route:

A direct, nonstop flight between Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 5,198 miles (or 8,365 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 Sofia Airport Vrazhdebna 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 Sofia Airport Vrazhdebna 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 Sofia Airport Vrazhdebna (SOF):

• The construction of the new Sofia tower is related to the reconstruction and development of Sofia Airport and is the natural extension of the development of the airport complex.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• The new tower was officially opened on 7 December 2012.
• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• The furthest airport from Sofia Airport Vrazhdebna (SOF) is Chatham Islands (CHT), which is located 11,437 miles (18,405 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The airport was initially built in the late 1930s on a site 6.3 km by road then.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.

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

• All fixed-wing scheduled airline service in Chicago moved from Midway to O'Hare by July 1962.
• 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.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• Due to the construction of Terminal 1 for United, international flights were relocated to a temporary Terminal 4 from 1984 until 1993.
• Chicago O'Hare International Airport, also known as O'Hare Airport, O'Hare Field, Chicago International Airport, or simply O'Hare, is a major airport located in the northwestern-most corner of Chicago, Illinois, 17 miles northwest of the Chicago Loop.
• 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.
• 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.
• During this era international flights used Terminal 1.
• In 1945, the facility was chosen by the city of Chicago as the site for a facility to meet future aviation demands.
• 1,057 fatalities have occurred as a result of accidents en route to or from O'Hare.
• In 1949, the airport was renamed "O'Hare International Airport" to honor Edward O'Hare, the U.S.