Nonstop flight route between Houston, Texas, United States and Sofia, Bulgaria:
Departure Airport:

Arrival Airport:

Distance from EFD to SOF:
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- About this route
- EFD Airport Information
- SOF Airport Information
- Facts about EFD
- Facts about SOF
- Map of Nearest Airports to EFD
- List of Nearest Airports to EFD
- Map of Furthest Airports from EFD
- List of Furthest Airports from EFD
- Map of Nearest Airports to SOF
- List of Nearest Airports to SOF
- Map of Furthest Airports from SOF
- List of Furthest Airports from SOF
About this route:
A direct, nonstop flight between Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), Houston, Texas, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 6,102 miles (or 9,820 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 Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field 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 Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field and Sofia Airport Vrazhdebna. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | EFD / KEFD |
Airport Names: |
|
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°36'25"N by 95°9'32"W |
View all routes: | Routes from EFD |
More Information: | EFD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SOF / LBSF |
Airport Names: |
|
Location: | Sofia, Bulgaria |
GPS Coordinates: | 42°41'42"N by 23°24'29"E |
Area Served: | Sofia, Bulgaria |
Operator/Owner: | Sofia Airport EAD |
Airport Type: | Public |
Elevation: | 1742 feet (531 meters) |
# of Runways: | 1 |
View all routes: | Routes from SOF |
More Information: | SOF Maps & Info |
Facts about Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD):
- In 1943 Ellington Field became the site for advanced navigator training.
- During World War I, Ellington served as an advanced flight training base.
- The closest airport to Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is William P. Hobby Airport (HOU), which is located only 8 miles (12 kilometers) WNW of EFD.
- Radar facilities were activated on 1 February 1953 with the 747th Aircraft Control and Warning Squadron operating a pair of AN/FPS-10 radars The station was designated P-79.
- In addition to being known as "Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field", another name for EFD is "Ellington Field JRB".
- The furthest airport from Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) is Cocos (Keeling) Island Airport (CCK), which is located 11,008 miles (17,716 kilometers) away in Cocos Islands, Australia.
- In 1925 General William Mitchell conducted a "flying tour" of all National Guard Observation Squadrons throughout the United States.
Facts about Sofia Airport Vrazhdebna (SOF):
- In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
- 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.
- Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
- Contract for detailed design and construction of a new control tower of the airport and forming an ATM Glavbolgarstroy.
- The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
- A significant and recurring operational criticism of Sofia Airport has concerned its historical lack of all-weather operations capability.
- On 19 August 2011 in the presence of Ivaylo Moskovski, minister of transport, information technology and communications, the BULATSA director general Diyan Dinev, Glavbolgarstroy AD chief executive director Pavel Kalistratov and Glavbolgarstroy AD executive director and management board member Nina Stoyanova signed the design execution and construction contract between BULATSA and Glavbolgarstroy AD for the new control tower at Sofia Airport.
- Sofia Airport Vrazhdebna handled 350,432 passengers last year.
- Options for different airport developments began to be examined in the mid-1960s.