Nonstop flight route between Camp Roberts, San Luis Obispo County, California, United States and Altenrhein, Switzerland:
Departure Airport:

Arrival Airport:

Distance from SYL to ACH:
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- About this route
- SYL Airport Information
- ACH Airport Information
- Facts about SYL
- Facts about ACH
- Map of Nearest Airports to SYL
- List of Nearest Airports to SYL
- Map of Furthest Airports from SYL
- List of Furthest Airports from SYL
- Map of Nearest Airports to ACH
- List of Nearest Airports to ACH
- Map of Furthest Airports from ACH
- List of Furthest Airports from ACH
About this route:
A direct, nonstop flight between Roberts Army Heliport (SYL), Camp Roberts, San Luis Obispo County, California, United States and St. Gallen–Altenrhein Airport (ACH), Altenrhein, Switzerland would travel a Great Circle distance of 5,914 miles (or 9,517 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 Roberts Army Heliport and St. Gallen–Altenrhein 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 Roberts Army Heliport and St. Gallen–Altenrhein Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SYL / KSYL |
Airport Name: | Roberts Army Heliport |
Location: | Camp Roberts, San Luis Obispo County, California, United States |
GPS Coordinates: | 35°48'53"N by 120°44'38"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 630 feet (192 meters) |
View all routes: | Routes from SYL |
More Information: | SYL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ACH / LSZR |
Airport Names: |
|
Location: | Altenrhein, Switzerland |
GPS Coordinates: | 47°29'7"N by 9°33'39"E |
Area Served: | St. Gallen, Switzerland and Lake Constance |
Elevation: | 1306 feet (398 meters) |
# of Runways: | 2 |
View all routes: | Routes from ACH |
More Information: | ACH Maps & Info |
Facts about Roberts Army Heliport (SYL):
- The closest airport to Roberts Army Heliport (SYL) is Paso Robles Municipal AirportEstrella Army Airfield (PRB), which is located only 12 miles (19 kilometers) SE of SYL.
- The furthest airport from Roberts Army Heliport (SYL) is Pierrefonds Airport (ZSE), which is located 11,409 miles (18,361 kilometers) away in Saint-Pierre, Réunion.
- Because of Roberts Army Heliport's relatively low elevation of 630 feet, planes can take off or land at Roberts 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 St. Gallen–Altenrhein Airport (ACH):
- The closest airport to St. Gallen–Altenrhein Airport (ACH) is Hohenems-Dornbirn Airport (HOH), which is located only 10 miles (15 kilometers) SE of ACH.
- The furthest airport from St. Gallen–Altenrhein Airport (ACH) is Chatham Islands (CHT), which is nearly antipodal to St. Gallen–Altenrhein Airport (meaning St. Gallen–Altenrhein Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,051 miles (19,394 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- Austrian Airlines served St.
- In addition to being known as "St. Gallen–Altenrhein Airport", another name for ACH is "People's Business Airport".
- St. Gallen–Altenrhein Airport (ACH) has 2 runways.
- The nearest bigger airport is Friedrichshafen Airport in Germany, on the opposite side of Lake Constance to the northwest by ferry).