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

About this route:

A direct, nonstop flight between Northeast Philadelphia Airport (PNE), Philadelphia, Pennsylvania, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,785 miles (or 7,700 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 Northeast Philadelphia 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 Northeast Philadelphia 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 Northeast Philadelphia Airport (PNE):

• When this airport opened the surrounding area was largely open farmland.
• The airport was the headquarters and maintenance facility for Ransome Airlines, which operated scheduled passenger flights as Allegheny Commuter to Washington D.C.
• The closest airport to Northeast Philadelphia Airport (PNE) is NAS JRB Willow Grove (NXX), which is located only 11 miles (18 kilometers) NW of PNE.
• The furthest airport from Northeast Philadelphia Airport (PNE) is Margaret River Airport (MGV), which is located 11,736 miles (18,888 kilometers) away in Margaret River, Western Australia, Australia.
• Northeast Philadelphia Airport (PNE) has 2 runways.
• Because of Northeast Philadelphia Airport's relatively low elevation of 121 feet, planes can take off or land at Northeast Philadelphia 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 Sofia Airport Vrazhdebna (SOF):

• The terminal had substantially reached its capacity of some 600,000 passengers a year by the later 1960s and was subjected to a number of refurbishments and extensions beginning in the spring of 1968.
• The new tower is an extremely important facility for both ATC and the airport because it is related to the safety and security of flights, explained by the transport department.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• Service life of the new airport control tower will be more than 40 years and is designed to serve the airport with a possible extension.
• Total cost of the project was planned at 200 million euros.
• The new Sofia tower will be situated to the west of Terminal 2 and will be complementing the terminal building in architectural terms.
• 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.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• 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.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.