Nonstop flight route between Atwater, California, United States and Sofia, Bulgaria:
Departure Airport:

Arrival Airport:

Distance from MER to SOF:
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- About this route
- MER Airport Information
- SOF Airport Information
- Facts about MER
- Facts about SOF
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- 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 Castle Airport (MER), Atwater, California, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 6,459 miles (or 10,394 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 Castle 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 Castle 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:
IATA / ICAO Codes: | MER / KMER |
Airport Name: | Castle Airport |
Location: | Atwater, California, United States |
GPS Coordinates: | 37°22'50"N by 120°34'5"W |
Operator/Owner: | Merced County Department of Commerce, Aviation, and Economic Development |
Airport Type: | Public |
Elevation: | 191 feet (58 meters) |
# of Runways: | 1 |
View all routes: | Routes from MER |
More Information: | MER 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 Castle Airport (MER):
- Castle Air Museum is 500 yards away, displaying over 50 restored World War II, Korean War, and Cold War era aircraft.
- With its central location in the San Joaquin Valley, on the route of the proposed California High-Speed Rail system, and with a large, underdeveloped site, Castle Airport has been submitted as a possible location for the central maintenance facility for the system.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
- Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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.
- Castle Airport (MER) currently has only 1 runway.
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
Facts about Sofia Airport Vrazhdebna (SOF):
- 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.
- Sofia Airport Vrazhdebna handled 350,432 passengers last year.
- On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.
- Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
- 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.
- In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
- Sofia Airport, sometimes also called Sofia-Vrazhdebna Airport, is the main airport of Bulgaria.
- By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.
- Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.
- The new tower was officially opened on 7 December 2012.
- 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 closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.