Nonstop flight route between Camp San Luis Obispo, California, United States and Keene, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from CSL to EEN:
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- About this route
- CSL Airport Information
- EEN Airport Information
- Facts about CSL
- Facts about EEN
- Map of Nearest Airports to CSL
- List of Nearest Airports to CSL
- Map of Furthest Airports from CSL
- List of Furthest Airports from CSL
- Map of Nearest Airports to EEN
- List of Nearest Airports to EEN
- Map of Furthest Airports from EEN
- List of Furthest Airports from EEN
About this route:
A direct, nonstop flight between O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States and Dillant–Hopkins Airport (EEN), Keene, New Hampshire, United States would travel a Great Circle distance of 2,614 miles (or 4,206 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 O'Sullivan Army Heliport and Dillant–Hopkins Airport, 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 O'Sullivan Army Heliport and Dillant–Hopkins Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CSL / KCSL |
Airport Name: | O'Sullivan Army Heliport |
Location: | Camp San Luis Obispo, California, United States |
GPS Coordinates: | 35°19'33"N by 120°44'35"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 250 feet (76 meters) |
View all routes: | Routes from CSL |
More Information: | CSL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | EEN / KEEN |
Airport Name: | Dillant–Hopkins Airport |
Location: | Keene, New Hampshire, United States |
GPS Coordinates: | 42°53'53"N by 72°16'14"W |
Operator/Owner: | Keene, New Hampshire |
Airport Type: | City of Keene |
Elevation: | 149 feet (45 meters) |
# of Runways: | 2 |
View all routes: | Routes from EEN |
More Information: | EEN Maps & Info |
Facts about O'Sullivan Army Heliport (CSL):
- The closest airport to O'Sullivan Army Heliport (CSL) is San Luis Obispo County Regional Airport (SBP), which is located only 8 miles (14 kilometers) SE of CSL.
- The furthest airport from O'Sullivan Army Heliport (CSL) is Pierrefonds Airport (ZSE), which is located 11,442 miles (18,414 kilometers) away in Saint-Pierre, Réunion.
- Because of O'Sullivan Army Heliport's relatively low elevation of 250 feet, planes can take off or land at O'Sullivan Army Heliport 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.
Facts about Dillant–Hopkins Airport (EEN):
- Initially Dillant–Hopkins provided air service of two flights a day before being forced to fly a single flight a day.
- Because of Dillant–Hopkins Airport's relatively low elevation of 149 feet, planes can take off or land at Dillant–Hopkins 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.
- 1967 would also see Vice President Hubert H.
- The closest airport to Dillant–Hopkins Airport (EEN) is Jaffrey Airport - Silver Ranch Airpark (AFN), which is located only 15 miles (24 kilometers) ESE of EEN.
- Dillant–Hopkins Airport (EEN) has 2 runways.
- In 1945 a steel hangar was constructed at the airport which would also see local operations moved to it from West Keene.
- The furthest airport from Dillant–Hopkins Airport (EEN) is Margaret River Airport (MGV), which is located 11,700 miles (18,830 kilometers) away in Margaret River, Western Australia, Australia.