Nonstop flight route between Port Alexander, Alaska, United States and Long Semado, Sarawak, Malaysia:
Departure Airport:

Arrival Airport:

Distance from PTD to LSM:
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- About this route
- PTD Airport Information
- LSM Airport Information
- Facts about PTD
- Facts about LSM
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
- Map of Nearest Airports to LSM
- List of Nearest Airports to LSM
- Map of Furthest Airports from LSM
- List of Furthest Airports from LSM
About this route:
A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and Long Semado Airport (LSM), Long Semado, Sarawak, Malaysia would travel a Great Circle distance of 6,720 miles (or 10,814 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 Port Alexander Seaplane Base and Long Semado 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 Port Alexander Seaplane Base and Long Semado Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PTD / PAAP |
Airport Names: |
|
Location: | Port Alexander, Alaska, United States |
GPS Coordinates: | 56°14'48"N by 134°38'53"W |
Area Served: | Port Alexander, Alaska |
Operator/Owner: | Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from PTD |
More Information: | PTD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | LSM / WBGD |
Airport Names: |
|
Location: | Long Semado, Sarawak, Malaysia |
GPS Coordinates: | 4°12'59"N by 115°34'58"E |
Area Served: | Long Semado, Sarawak, Malaysia |
Operator/Owner: | Malaysia Airports Sdn. Bhd. |
Airport Type: | Public |
Elevation: | 2150 feet (655 meters) |
# of Runways: | 1 |
View all routes: | Routes from LSM |
More Information: | LSM Maps & Info |
Facts about Port Alexander Seaplane Base (PTD):
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- As per Federal Aviation Administration records, the airport had 139 passenger boardings in calendar year 2008, 189 enplanements in 2009, and 146 in 2010.
- The closest airport to Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
- The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
- Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander 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.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
Facts about Long Semado Airport (LSM):
- The furthest airport from Long Semado Airport (LSM) is Tefé Airport (TFF), which is nearly antipodal to Long Semado Airport (meaning Long Semado Airport is almost on the exact opposite side of the Earth from Tefé Airport), and is located 12,375 miles (19,916 kilometers) away in Tefé, Amazonas, Brazil.
- In addition to being known as "Long Semado Airport", another name for LSM is "Lapangan Terbang Long Semado".
- The closest airport to Long Semado Airport (LSM) is Ba'kelalan Airport (BKM), which is located only 16 miles (26 kilometers) S of LSM.
- Long Semado Airport (LSM) currently has only 1 runway.