Nonstop flight route between St. Helens, Tasmania, Australia and Middleton Island, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from HLS to MDO:
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- About this route
- HLS Airport Information
- MDO Airport Information
- Facts about HLS
- Facts about MDO
- 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 MDO
- List of Nearest Airports to MDO
- Map of Furthest Airports from MDO
- List of Furthest Airports from MDO
About this route:
A direct, nonstop flight between St Helens Airport (HLS), St. Helens, Tasmania, Australia and Middleton Island Airport (MDO), Middleton Island, Alaska, United States would travel a Great Circle distance of 7,891 miles (or 12,699 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 Middleton Island 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 St Helens Airport and Middleton Island Airport. 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: | MDO / PAMD |
Airport Name: | Middleton Island Airport |
Location: | Middleton Island, Alaska, United States |
GPS Coordinates: | 59°26'58"N by 146°18'25"W |
Area Served: | Middleton Island, Alaska |
Airport Type: | Public |
Elevation: | 100 feet (30 meters) |
# of Runways: | 2 |
View all routes: | Routes from MDO |
More Information: | MDO Maps & Info |
Facts about St Helens Airport (HLS):
- 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.
- 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.
- 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.
Facts about Middleton Island Airport (MDO):
- The closest airport to Middleton Island Airport (MDO) is Boswell Bay Airport (BSW), which is located 67 miles (109 kilometers) N of MDO.
- Middleton Island Airport (MDO) has 2 runways.
- The furthest airport from Middleton Island Airport (MDO) is Port Elizabeth International Airport (PLZ), which is located 10,639 miles (17,122 kilometers) away in Port Elizabeth, South Africa.
- Because of Middleton Island Airport's relatively low elevation of 100 feet, planes can take off or land at Middleton Island 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.