Nonstop flight route between Portsmouth, New Hampshire, United States and Shearwater, Nova Scotia, Canada:
Departure Airport:

Arrival Airport:

Distance from PSM to YAW:
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- About this route
- PSM Airport Information
- YAW Airport Information
- Facts about PSM
- Facts about YAW
- 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 YAW
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- Map of Furthest Airports from YAW
- List of Furthest Airports from YAW
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Shearwater Heliport (YAW), Shearwater, Nova Scotia, Canada would travel a Great Circle distance of 380 miles (or 612 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 relatively short distance between Portsmouth International Airport at Pease and Shearwater Heliport, the route shown on this map most likely still appears to be a straight line.
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: | YAW / CYAW |
Airport Names: |
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Location: | Shearwater, Nova Scotia, Canada |
GPS Coordinates: | 44°38'13"N by 63°30'7"W |
Operator/Owner: | Government of Canada |
Airport Type: | Military |
Elevation: | 144 feet (44 meters) |
View all routes: | Routes from YAW |
More Information: | YAW Maps & Info |
Facts about Portsmouth International Airport at Pease (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.
- 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 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.
- Portsmouth International Airport at Pease, formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.
- 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.
Facts about Shearwater Heliport (YAW):
- Because of Shearwater Heliport's relatively low elevation of 144 feet, planes can take off or land at Shearwater Heliport 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.
- Organizers of the "Nova Scotia International Air Show" continued to make use the Shearwater airfield for both ground displays and the air show component until 2002.
- The closest airport to Shearwater Heliport (YAW) is Halifax Stanfield International Airport (YHZ), which is located only 17 miles (27 kilometers) N of YAW.
- During the late 1990s and early 2000s the Shearwater airfield was scaled back significantly as the facility transitioned to a heliport with surplus lands identified and transferred to Canada Lands Company.
- Canadian Forces Base Shearwater, commonly referred to as CFB Shearwater, was a Canadian Forces Base located in Shearwater, Nova Scotia on the eastern shore of Halifax Harbour in the Halifax Regional Municipality.
- The air show moved to Yarmouth Airport in 2009 but returned to Shearwater in 2010, the first time since 2003 that an air show was held at the historic airfield.
- The furthest airport from Shearwater Heliport (YAW) is Albany Airport (ALH), which is located 11,763 miles (18,931 kilometers) away in Albany, Western Australia, Australia.
- In addition to being known as "Shearwater Heliport", other names for YAW include "Halifax/Shearwater Heliport", "12 Wing Shearwater" and "CFB Shearwater".
- By 2002 only runway 10/28 remained open.