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

Arrival Airport:

Distance from HLS to LKE:
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- About this route
- HLS Airport Information
- LKE Airport Information
- Facts about HLS
- Facts about LKE
- 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 LKE
- List of Nearest Airports to LKE
- Map of Furthest Airports from LKE
- List of Furthest Airports from LKE
About this route:
A direct, nonstop flight between St Helens Airport (HLS), St. Helens, Tasmania, Australia and Kenmore Air Harbor Seaplane Base (LKE), Seattle, Washington, United States would travel a Great Circle distance of 8,212 miles (or 13,215 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 Kenmore Air Harbor Seaplane 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 Kenmore Air Harbor Seaplane 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: | LKE / |
Airport Names: |
|
Location: | Seattle, Washington, United States |
GPS Coordinates: | 47°37'44"N by 122°20'18"W |
Area Served: | Seattle, Washington |
Operator/Owner: | Gregg Munro |
Airport Type: | Public |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from LKE |
More Information: | LKE 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 Kenmore Air Harbor Seaplane Base (LKE):
- The furthest airport from Kenmore Air Harbor Seaplane Base (LKE) is Tôlanaro Airport (FTU), which is located 10,770 miles (17,332 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Kenmore Air Harbor Seaplane Base (LKE) is King County International Airport (BFI), which is located only 7 miles (11 kilometers) SSE of LKE.
- In addition to being known as "Kenmore Air Harbor Seaplane Base", other names for LKE include "Seattle Lake Union Seaplane Base" and "W55".
- Kenmore Air Harbor Seaplane Base (LKE) currently has only 1 runway.
- Because of Kenmore Air Harbor Seaplane Base's relatively low elevation of 14 feet, planes can take off or land at Kenmore Air Harbor Seaplane Base 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.