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

About this route:

A direct, nonstop flight between Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,803 miles (or 7,730 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 Philadelphia International 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 Philadelphia International 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 Philadelphia International Airport (PHL):

• Beginning in 1940 the Coatesville-based Rising Sun School of Aeronautics performed primary flight training at the airport under contract to the Air Corps.
• The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
• Philadelphia International Airport is important to Philadelphia, its metropolitan region and the Commonwealth of Pennsylvania.
• In June 1943 I Fighter Command transferred jurisdiction of the airport to the Air Technical Service Command.
• Such growth has not come without difficulties.
• Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia 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.
• The April 1957 OAG shows 30 weekday departures on Eastern, 24 TWA, 24 United, 18 American, 16 National, 14 Capital, 6 Allegheny and 3 Delta.
• The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.
• Philadelphia International Airport (PHL) has 4 runways.
• One of the two newest terminal buildings at the airport, Concourse A West has a very modern and innovative design, made by Kohn Pedersen Fox, Pierce Goodwin Alexander & Linville, and Kelly/Maiello.

Facts about Sofia Airport Vrazhdebna (SOF):

• Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.
• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• 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.
• 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 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.
• During the Second World War, the facilities were used by the military.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".