Nonstop flight route between Nantucket, Massachusetts, United States and Port Alexander, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from ACK to PTD:
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- About this route
- ACK Airport Information
- PTD Airport Information
- Facts about ACK
- Facts about PTD
- Map of Nearest Airports to ACK
- List of Nearest Airports to ACK
- Map of Furthest Airports from ACK
- List of Furthest Airports from ACK
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
About this route:
A direct, nonstop flight between Nantucket Memorial Airport (ACK), Nantucket, Massachusetts, United States and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 2,993 miles (or 4,817 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 Nantucket Memorial Airport and Port Alexander 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 Nantucket Memorial Airport and Port Alexander 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: | ACK / KACK |
Airport Name: | Nantucket Memorial Airport |
Location: | Nantucket, Massachusetts, United States |
GPS Coordinates: | 41°15'10"N by 70°3'32"W |
Operator/Owner: | Town of Nantucket |
Airport Type: | Public |
Elevation: | 48 feet (15 meters) |
# of Runways: | 3 |
View all routes: | Routes from ACK |
More Information: | ACK Maps & Info |
Arrival 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 |
Facts about Nantucket Memorial Airport (ACK):
- Nantucket Memorial Airport is a public airport on the south side of the island of Nantucket in the U.S.
- Because of Nantucket Memorial Airport's relatively low elevation of 48 feet, planes can take off or land at Nantucket Memorial 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 Nantucket Memorial Airport (ACK) is Marthas Vineyard Airport (MVY), which is located 30 miles (49 kilometers) WNW of ACK.
- The furthest airport from Nantucket Memorial Airport (ACK) is Margaret River Airport (MGV), which is located 11,858 miles (19,083 kilometers) away in Margaret River, Western Australia, Australia.
- In the late 1930s, a man named Holm began allowing the Town of Nantucket to use fields on his property as an airfield.
- Up through the 1990s, a variety of other carriers served the airport, some of which used jet airliners as large as McDonnell Douglas DC-9s.
- Nantucket Memorial Airport (ACK) has 3 runways.
Facts about Port Alexander Seaplane Base (PTD):
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
- 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.
- 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.
- Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
- 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.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.