Nonstop flight route between St. Helens, Tasmania, Australia and Agana, Guam:
Departure Airport:

Arrival Airport:

Distance from HLS to UAM:
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- About this route
- HLS Airport Information
- UAM Airport Information
- Facts about HLS
- Facts about UAM
- 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 UAM
- List of Nearest Airports to UAM
- Map of Furthest Airports from UAM
- List of Furthest Airports from UAM
About this route:
A direct, nonstop flight between St Helens Airport (HLS), St. Helens, Tasmania, Australia and Andersen Air Force Base (UAM), Agana, Guam would travel a Great Circle distance of 3,801 miles (or 6,116 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 Andersen Air Force Base, 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 Andersen Air Force Base. 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: | UAM / PGUA |
Airport Name: | Andersen Air Force Base |
Location: | Agana, Guam |
GPS Coordinates: | 13°34'51"N by 144°55'27"E |
View all routes: | Routes from UAM |
More Information: | UAM Maps & Info |
Facts about St Helens Airport (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.
- 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.
Facts about Andersen Air Force Base (UAM):
- The Japanese managed to contain the marines on two beachheads, but their counter-attack failed.
- In October 1949, the 19th Wing again became subordinated to the 20th Air Force and the remaining units in the Marianas and Bonin Islands were transferred to other organizations.
- Andersen Air Force Base's origins begin on 7 December 1941 when Guam was attacked by the armed forces of Imperial Japan in the Battle of Guam three hours after the Attack on Pearl Harbor.
- The closest airport to Andersen Air Force Base (UAM) is Guam International Airport (GUM), which is located only 11 miles (17 kilometers) SW of UAM.
- The furthest airport from Andersen Air Force Base (UAM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Andersen Air Force Base (meaning Andersen Air Force Base is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,214 miles (19,656 kilometers) away in Salvador, Bahia, Brazil.
- With the start of Operation Arc Light in June 1965, B-52s and KC-135s began regular bombing missions over Vietnam, and continued in that capacity until 1973, with a break between August 1970 and early 1972.