Nonstop flight route between Port Alexander, Alaska, United States and Ruislip, England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from PTD to NHT:
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- About this route
- PTD Airport Information
- NHT Airport Information
- Facts about PTD
- Facts about NHT
- 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 NHT
- List of Nearest Airports to NHT
- Map of Furthest Airports from NHT
- List of Furthest Airports from NHT
About this route:
A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 4,545 miles (or 7,315 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 RAF Northolt, 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 RAF Northolt. 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: | NHT / EGWU |
Airport Name: | RAF Northolt |
Location: | Ruislip, England, United Kingdom |
GPS Coordinates: | 51°33'11"N by 0°25'5"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from NHT |
More Information: | NHT Maps & Info |
Facts about Port Alexander Seaplane Base (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.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- 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.
- As per Federal Aviation Administration records, the airport had 139 passenger boardings in calendar year 2008, 189 enplanements in 2009, and 146 in 2010.
- 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 RAF Northolt (NHT):
- Northolt became an active base during the Second World War for Royal Air Force and Polish Air Force squadrons in their defence of the United Kingdom.
- Following Louis Blériot's first flight across the English Channel in 1909, the British Army considered the necessity of defending the United Kingdom from a future air attack.
- In August 1996, a Spanish Learjet operated by Mar Aviation overshot runway 25 and collided with a van heading eastward on the A40 Western Avenue.
- In January 2012, it was reported that the future of station was under review by the Ministry of Defence as part of efforts to reduce defence spending.
- Starting in 1946 the airfield was used by civil aviation during the construction of nearby Heathrow Airport.
- The furthest airport from RAF Northolt (NHT) is Chatham Islands (CHT), which is located 11,871 miles (19,105 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.