Nonstop flight route between Waterfall, Alaska, United States and Portsmouth, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from KWF to PSM:
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- About this route
- KWF Airport Information
- PSM Airport Information
- Facts about KWF
- Facts about PSM
- Map of Nearest Airports to KWF
- List of Nearest Airports to KWF
- Map of Furthest Airports from KWF
- List of Furthest Airports from KWF
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
About this route:
A direct, nonstop flight between Waterfall Seaplane Base (KWF), Waterfall, Alaska, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 2,837 miles (or 4,566 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 Waterfall Seaplane Base and Portsmouth International Airport at Pease, 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 Waterfall Seaplane Base and Portsmouth International Airport at Pease. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KWF / |
Airport Name: | Waterfall Seaplane Base |
Location: | Waterfall, Alaska, United States |
GPS Coordinates: | 55°17'47"N by 133°14'35"W |
Area Served: | Waterfall, Alaska |
Operator/Owner: | Waterfall Cannery Resort |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from KWF |
More Information: | KWF Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Facts about Waterfall Seaplane Base (KWF):
- Because of Waterfall Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Waterfall 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.
- The closest airport to Waterfall Seaplane Base (KWF) is Craig Seaplane Base (CGA), which is located only 13 miles (21 kilometers) NNE of KWF.
- The furthest airport from Waterfall Seaplane Base (KWF) is Port Alfred Airport (AFD), which is located 10,657 miles (17,150 kilometers) away in Port Alfred, South Africa.
- Waterfall Seaplane Base (KWF) currently has only 1 runway.
Facts about Portsmouth International Airport at Pease (PSM):
- Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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 furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.