Nonstop flight route between Reading, Pennsylvania, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Reading Regional Airport (RDG), Reading, Pennsylvania, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,811 miles (or 7,742 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 Reading Regional Airport and Sofia Airport Vrazhdebna, 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 Reading Regional Airport and Sofia Airport Vrazhdebna. 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 Reading Regional Airport (RDG):

• Reading Regional Airport (RDG) has 2 runways.
• On 1 June 1944 the 309th Air Base Squadron was re-designated the 85th Army Air Force Base Unit.
• In addition to being known as "Reading Regional Airport", another name for RDG is "Carl A. Spaatz FieldReading Army Airfield".
• The closest airport to Reading Regional Airport (RDG) is Heritage Field (PTW), which is located 24 miles (38 kilometers) ESE of RDG.
• Because of Reading Regional Airport's relatively low elevation of 344 feet, planes can take off or land at Reading Regional 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 Reading Regional Airport (RDG) is Margaret River Airport (MGV), which is located 11,683 miles (18,802 kilometers) away in Margaret River, Western Australia, Australia.
• In the 1950s TWA, Capital and Colonial stopped at Reading.
• Reading Army Airfield opened on 1 June 1943, with the 309th Base Headquarters and Air Base Squadron as its host unit.

Facts about Sofia Airport Vrazhdebna (SOF):

• 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 closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• According to the plan a new Sofia airport terminal was built to the east of the old terminal and a second runway was constructed alongside the existing one.
• The passenger terminal building is designed with a capacity of 2,000 peak hour passengers or up to 2.6 million passengers a year, plus 26,000 tonnes of luggage.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• A lot of consideration has been given to the design of the layout, the functional definition of the working positions, the operations room surface area for ANS provision and meteorological observation, as well as to the requirements for visibility to the runway and the approaches and access to an open observation platform.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Options for different airport developments began to be examined in the mid-1960s.