Nonstop flight route between Houghton Lake, Michigan, United States and Sofia, Bulgaria:
Departure Airport:

Arrival Airport:

Distance from HTL to SOF:
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- About this route
- HTL Airport Information
- SOF Airport Information
- Facts about HTL
- Facts about SOF
- Map of Nearest Airports to HTL
- List of Nearest Airports to HTL
- Map of Furthest Airports from HTL
- List of Furthest Airports from HTL
- 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 Roscommon County - Blodgett Memorial Airport (HTL), Houghton Lake, Michigan, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,966 miles (or 7,993 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 Roscommon County - Blodgett Memorial 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 Roscommon County - Blodgett Memorial 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: | HTL / KHTL |
Airport Name: | Roscommon County - Blodgett Memorial Airport |
Location: | Houghton Lake, Michigan, United States |
GPS Coordinates: | 44°21'34"N by 84°40'15"W |
Area Served: | Houghton Lake, Michigan |
Operator/Owner: | Roscommon County |
Airport Type: | Public |
Elevation: | 1150 feet (351 meters) |
# of Runways: | 2 |
View all routes: | Routes from HTL |
More Information: | HTL 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 Roscommon County - Blodgett Memorial Airport (HTL):
- Roscommon County – Blodgett Memorial Airport is a county-owned public-use airport located five miles northeast of the central business district of Houghton Lake, an unincorporated community in Roscommon County, Michigan, United States.
- The closest airport to Roscommon County - Blodgett Memorial Airport (HTL) is Gladwin Zettel Memorial Airport (GDW), which is located 29 miles (46 kilometers) SSE of HTL.
- The furthest airport from Roscommon County - Blodgett Memorial Airport (HTL) is Margaret River Airport (MGV), which is located 11,161 miles (17,962 kilometers) away in Margaret River, Western Australia, Australia.
- Roscommon County - Blodgett Memorial Airport (HTL) has 2 runways.
Facts about Sofia Airport Vrazhdebna (SOF):
- Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
- Sofia Airport Vrazhdebna handled 350,432 passengers last year.
- 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".
- 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.
- 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.
- The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
- The project for the construction of a new airport control tower at Sofia Airport commenced on 16 June 2006 with a decision of the BULATSA Management Board.
- A significant and recurring operational criticism of Sofia Airport has concerned its historical lack of all-weather operations capability.
- Terminal 2 was officially opened on 27 December 2006 with the symbolic arrival of Bulgaria Air flight FB 408 from Brussels.