Nonstop flight route between St. Helens, Tasmania, Australia and Palo Alto, California, United States:
Departure Airport:

Arrival Airport:

Distance from HLS to PAO:
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- About this route
- HLS Airport Information
- PAO Airport Information
- Facts about HLS
- Facts about PAO
- Map of Nearest Airports to HLS
- List of Nearest Airports to HLS
- Map of Furthest Airports from HLS
- List of Furthest Airports from HLS
- Map of Nearest Airports to PAO
- List of Nearest Airports to PAO
- Map of Furthest Airports from PAO
- List of Furthest Airports from PAO
About this route:
A direct, nonstop flight between St Helens Airport (HLS), St. Helens, Tasmania, Australia and Palo Alto Airport of Santa Clara County (PAO), Palo Alto, California, United States would travel a Great Circle distance of 7,837 miles (or 12,613 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 St Helens Airport and Palo Alto Airport of Santa Clara County, 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 St Helens Airport and Palo Alto Airport of Santa Clara County. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | HLS / YSTH |
Airport Name: | St Helens Airport |
Location: | St. Helens, Tasmania, Australia |
GPS Coordinates: | 41°20'12"S by 148°16'54"E |
Operator/Owner: | Break O'Day Council |
Airport Type: | Public |
Elevation: | 158 feet (48 meters) |
# of Runways: | 1 |
View all routes: | Routes from HLS |
More Information: | HLS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PAO / KPAO |
Airport Name: | Palo Alto Airport of Santa Clara County |
Location: | Palo Alto, California, United States |
GPS Coordinates: | 37°27'39"N by 122°6'53"W |
Operator/Owner: | County of Santa Clara |
Airport Type: | Public |
Elevation: | 4 feet (1 meters) |
# of Runways: | 1 |
View all routes: | Routes from PAO |
More Information: | PAO Maps & Info |
Facts about St Helens Airport (HLS):
- St Helens Airport (HLS) currently has only 1 runway.
- The closest airport to St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.
- Because of St Helens Airport's relatively low elevation of 158 feet, planes can take off or land at St Helens 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.
- The furthest airport from St Helens Airport (HLS) is Corvo Airport (CVU), which is nearly antipodal to St Helens Airport (meaning St Helens Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,317 miles (19,823 kilometers) away in Corvo Island, Azores, Portugal.
Facts about Palo Alto Airport of Santa Clara County (PAO):
- Because of Palo Alto Airport of Santa Clara County's relatively low elevation of 4 feet, planes can take off or land at Palo Alto Airport of Santa Clara County 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.
- First time pilots should familiarize themselves with the complex SF Bay Area airspace, especially the overlying SFO Class B and the abutting SJC Class C airspace.
- The furthest airport from Palo Alto Airport of Santa Clara County (PAO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,289 kilometers) away in Tôlanaro, Madagascar.
- Fifteen miles of hiking and biking trails, affording multiple opportunities for birdwatching, form part of the adjacent 1,940-acre Palo Alto Baylands Nature Preserve.
- Palo Alto Airport of Santa Clara County (PAO) currently has only 1 runway.
- The airport was transferred to the United States Navy as King City NAAS in April 1945, and returned to civil control in December 1945.
- The closest airport to Palo Alto Airport of Santa Clara County (PAO) is Moffett Federal Airfield (NUQ), which is located only 5 miles (8 kilometers) SE of PAO.