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

Arrival Airport:

Distance from PSM to ALZ:
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- About this route
- PSM Airport Information
- ALZ Airport Information
- Facts about PSM
- Facts about ALZ
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to ALZ
- List of Nearest Airports to ALZ
- Map of Furthest Airports from ALZ
- List of Furthest Airports from ALZ
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Alitak Seaplane Base (ALZ), Lazy Bay, Alaska, United States would travel a Great Circle distance of 3,582 miles (or 5,765 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 Portsmouth International Airport at Pease and Alitak 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 Portsmouth International Airport at Pease and Alitak 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: | 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 |
Arrival Airport Information:
IATA / ICAO Codes: | ALZ / |
Airport Name: | Alitak Seaplane Base |
Location: | Lazy Bay, Alaska, United States |
GPS Coordinates: | 56°53'57"N by 154°14'52"W |
Area Served: | Lazy Bay, Alaska |
Operator/Owner: | Columbia Ward Fisheries |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from ALZ |
More Information: | ALZ Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
- 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.
- 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.
- 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 airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
Facts about Alitak Seaplane Base (ALZ):
- The furthest airport from Alitak Seaplane Base (ALZ) is Port Elizabeth International Airport (PLZ), which is located 10,854 miles (17,467 kilometers) away in Port Elizabeth, South Africa.
- Because of Alitak Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Alitak 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 Alitak Seaplane Base (ALZ) is Akhiok Airport (AKK), which is located only 4 miles (6 kilometers) NE of ALZ.
- Alitak Seaplane Base (ALZ) currently has only 1 runway.