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

Arrival Airport:

Distance from PSM to HYL:
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- About this route
- PSM Airport Information
- HYL Airport Information
- Facts about PSM
- Facts about HYL
- 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 HYL
- List of Nearest Airports to HYL
- Map of Furthest Airports from HYL
- List of Furthest Airports from HYL
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Hollis Clark Bay Seaplane Base (HYL), Hollis, Alaska, United States would travel a Great Circle distance of 2,811 miles (or 4,523 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 Hollis Clark Bay 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 Hollis Clark Bay 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: | HYL / |
Airport Name: | Hollis Clark Bay Seaplane Base |
Location: | Hollis, Alaska, United States |
GPS Coordinates: | 55°29'26"N by 132°37'24"W |
Area Served: | Hollis, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeastern Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from HYL |
More Information: | HYL Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- 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.
- 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 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 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 Hollis Clark Bay Seaplane Base (HYL):
- Hollis Clark Bay Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 10,000 by 500 feet.
- Because of Hollis Clark Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hollis Clark Bay 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 furthest airport from Hollis Clark Bay Seaplane Base (HYL) is Port Alfred Airport (AFD), which is located 10,631 miles (17,108 kilometers) away in Port Alfred, South Africa.
- The closest airport to Hollis Clark Bay Seaplane Base (HYL) is Thorne Bay Seaplane Base (KTB), which is located only 14 miles (23 kilometers) NNE of HYL.
- Hollis Clark Bay Seaplane Base (HYL) currently has only 1 runway.
- Hollis Clark Bay Seaplane Base is a state owned, public use seaplane base located one nautical mile northeast of the central business district of Hollis, a community in the Prince of Wales-Hyder Census Area in the U.S.