Nonstop flight route between Patuxent River, Maryland, United States and Port Alexander, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from NHK to PTD:
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- About this route
- NHK Airport Information
- PTD Airport Information
- Facts about NHK
- Facts about PTD
- Map of Nearest Airports to NHK
- List of Nearest Airports to NHK
- Map of Furthest Airports from NHK
- List of Furthest Airports from NHK
- 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 Naval Air Station Patuxent River (NHK), Patuxent River, Maryland, United States and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 2,893 miles (or 4,655 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 Naval Air Station Patuxent River 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 Naval Air Station Patuxent River 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: | NHK / KNHK |
Airport Names: |
|
Location: | Patuxent River, Maryland, United States |
GPS Coordinates: | 38°17'9"N by 76°24'42"W |
Operator/Owner: | United States Navy |
Airport Type: | Naval Air Station |
Elevation: | 39 feet (12 meters) |
# of Runways: | 3 |
View all routes: | Routes from NHK |
More Information: | NHK 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 Naval Air Station Patuxent River (NHK):
- Because of Naval Air Station Patuxent River's relatively low elevation of 39 feet, planes can take off or land at Naval Air Station Patuxent River 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.
- Naval Air Station Patuxent River (NHK) has 3 runways.
- The closest airport to Naval Air Station Patuxent River (NHK) is St. Mary's County Regional Airport (LTW), which is located only 8 miles (12 kilometers) WNW of NHK.
- The Patuxent River Naval Air Museum adjoins the base and can be accessed by the general public without coming onto the main base.
- The original civilian residents had about a month, until March 1, 1942, to relocate as the federal government purchased all the land at a cost of $712,287 for 6,412 acres, which in 2013 dollars would be the equivalent of being paid $1,261 per acre.
- The furthest airport from Naval Air Station Patuxent River (NHK) is Margaret River Airport (MGV), which is located 11,728 miles (18,874 kilometers) away in Margaret River, Western Australia, Australia.
- Situated on a peninsula between the Potomac River and the Chesapeake Bay at the mouth of the Patuxent River, NAS Patuxent River is located on 6,400 acres of what was once prime farmland, consisting of several large plantations, Mattapony, Susquehanna, and Cedar Point, as well as numerous tenant and sharecropper properties and a few clusters of vacation homes.
- In addition to being known as "Naval Air Station Patuxent River", other names for NHK include "Trapnell Field" and "KNHK - FAA: NHK".
- The station was formally commissioned "U.S.
- Cooperation with the British also led to transatlantic visits to PAX River by RAF squadrons.
Facts about Port Alexander Seaplane Base (PTD):
- Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
- 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.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".