Nonstop flight route between Camp San Luis Obispo, California, United States and Ruislip, England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from CSL to NHT:
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- About this route
- CSL Airport Information
- NHT Airport Information
- Facts about CSL
- Facts about NHT
- 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 NHT
- List of Nearest Airports to NHT
- Map of Furthest Airports from NHT
- List of Furthest Airports from NHT
About this route:
A direct, nonstop flight between O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 5,435 miles (or 8,746 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 RAF Northolt, 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 RAF Northolt. 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: | NHT / EGWU |
Airport Name: | RAF Northolt |
Location: | Ruislip, England, United Kingdom |
GPS Coordinates: | 51°33'11"N by 0°25'5"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from NHT |
More Information: | NHT Maps & Info |
Facts about O'Sullivan Army Heliport (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.
- 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.
Facts about RAF Northolt (NHT):
- In August 1996, a Spanish Learjet operated by Mar Aviation overshot runway 25 and collided with a van heading eastward on the A40 Western Avenue.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
- RAF Northolt became home to Prime Minister Winston Churchill's personal aircraft, a modified Douglas C-54 Skymaster, in June 1944.
- The furthest airport from RAF Northolt (NHT) is Chatham Islands (CHT), which is located 11,871 miles (19,105 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Civil flights ceased when the central area at Heathrow opened in 1954 with Northolt reverting to sole military use in May that year.
- Construction of the new aerodrome, to be named "RFC Military School, Ruislip", began in January 1915.
- Four Eurofighter Typhoon aircraft arrived at the station from RAF Coningsby on 2 May 2012 to take part in a security exercise as part of preparations for the 2012 Summer Olympics.