Nonstop flight route between Pittsburgh, Pennsylvania, United States and St. Helens, Tasmania, Australia:
Departure Airport:

Arrival Airport:

Distance from AGC to HLS:
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- About this route
- AGC Airport Information
- HLS Airport Information
- Facts about AGC
- Facts about HLS
- Map of Nearest Airports to AGC
- List of Nearest Airports to AGC
- Map of Furthest Airports from AGC
- List of Furthest Airports from AGC
- Map of Nearest Airports to HLS
- List of Nearest Airports to HLS
- Map of Furthest Airports from HLS
- List of Furthest Airports from HLS
About this route:
A direct, nonstop flight between Allegheny County Airport (AGC), Pittsburgh, Pennsylvania, United States and St Helens Airport (HLS), St. Helens, Tasmania, Australia would travel a Great Circle distance of 9,949 miles (or 16,011 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 Allegheny County Airport and St Helens 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 Allegheny County Airport and St Helens Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | AGC / KAGC |
Airport Name: | Allegheny County Airport |
Location: | Pittsburgh, Pennsylvania, United States |
GPS Coordinates: | 40°21'15"N by 79°55'48"W |
Operator/Owner: | Allegheny County Airport Authority |
Airport Type: | Public |
Elevation: | 1252 feet (382 meters) |
# of Runways: | 2 |
View all routes: | Routes from AGC |
More Information: | AGC Maps & Info |
Arrival 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 |
Facts about Allegheny County Airport (AGC):
- Harold Gatty and Wiley Post visited the airport as it was finishing construction both from the ground and air and commented that it was the finest airport they had encountered.
- The closest airport to Allegheny County Airport (AGC) is Forbes Field (FOE), which is located only 6 miles (10 kilometers) NNW of AGC.
- Allegheny County Airport (AGC) has 2 runways.
- The furthest airport from Allegheny County Airport (AGC) is Margaret River Airport (MGV), which is located 11,499 miles (18,506 kilometers) away in Margaret River, Western Australia, Australia.
- The airport has a small station currently operated by the Allegheny County Police Department as a local station and a base for airport security operations.
Facts about St Helens Airport (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 closest airport to St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.
- St Helens Airport (HLS) currently has only 1 runway.
- 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.