Nonstop flight route between Sembach, Germany and Gaithersburg, Maryland, United States:
Departure Airport:

Arrival Airport:

Distance from SEX to GAI:
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- About this route
- SEX Airport Information
- GAI Airport Information
- Facts about SEX
- Facts about GAI
- Map of Nearest Airports to SEX
- List of Nearest Airports to SEX
- Map of Furthest Airports from SEX
- List of Furthest Airports from SEX
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
About this route:
A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States would travel a Great Circle distance of 4,035 miles (or 6,493 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 Sembach KaserneSembach Air Base and Montgomery County Airpark, 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 Sembach KaserneSembach Air Base and Montgomery County Airpark. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SEX / ETAS |
Airport Name: | Sembach KaserneSembach Air Base |
Location: | Sembach, Germany |
GPS Coordinates: | 49°31'41"N by 7°51'56"E |
Operator/Owner: | United States with authority from Germany |
View all routes: | Routes from SEX |
More Information: | SEX Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GAI / KGAI |
Airport Name: | Montgomery County Airpark |
Location: | Gaithersburg, Maryland, United States |
GPS Coordinates: | 39°10'5"N by 77°9'57"W |
Operator/Owner: | Montgomery County Revenue Authority |
Airport Type: | Public |
Elevation: | 539 feet (164 meters) |
# of Runways: | 1 |
View all routes: | Routes from GAI |
More Information: | GAI Maps & Info |
Facts about Sembach KaserneSembach Air Base (SEX):
- In January 1958, it was announced that the 66th TRW would transition to the RF-101 Voodoo.
- The American flag first flew at Sembach Air Base on 8 July 1953.
- Although the Air Base was constructed in the French Zone of Occupation under French direction, it was built to be used by NATO forces and was, moreover, intended to be an American Air Base from the beginning.
- The closest airport to Sembach KaserneSembach Air Base (SEX) is Ramstein Air Base (RMS), which is located only 13 miles (21 kilometers) WSW of SEX.
- During the Cold War, Sembach Air Base housed a variety of USAF Tactical Reconnaissance, Close Air Support and Tactical Air Control units as a front line NATO air base.
- In February 1957, the RB-57s of the 30th TFS at Sembach were also being replaced by the Douglas RB-66 Destroyer.
- With the ongoing realignment of US forces in Europe the Army is preparing to move The United States Army Corrections Facility-Europe in Mannheim to Sembach Kaserne as all facilities in that city are to be closed no later than August 31, 2013.
- In the middle of April 1952, the residents of Sembach learned that the land to the north of the now completed flightline was to be used for the construction of multi-story barracks and office buildings.
- The furthest airport from Sembach KaserneSembach Air Base (SEX) is Chatham Islands (CHT), which is located 11,992 miles (19,299 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- On 30 November 1954, the 30th TRS received the first Martin RB-57A Canberra, to replace its World War II vintage RB-26 Invaders.
Facts about Montgomery County Airpark (GAI):
- Because of Montgomery County Airpark's relatively low elevation of 539 feet, planes can take off or land at Montgomery County Airpark 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 furthest airport from Montgomery County Airpark (GAI) is Margaret River Airport (MGV), which is located 11,667 miles (18,776 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
- Montgomery County Airpark (GAI) currently has only 1 runway.