Nonstop flight route between Portsmouth, New Hampshire, United States and St. George, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from PSM to STG:
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- About this route
- PSM Airport Information
- STG Airport Information
- Facts about PSM
- Facts about STG
- 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 STG
- List of Nearest Airports to STG
- Map of Furthest Airports from STG
- List of Furthest Airports from STG
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and St. George Airport (STG), St. George, Alaska, United States would travel a Great Circle distance of 4,108 miles (or 6,611 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 St. George Airport, 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 St. George Airport. 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: | STG / PAPB |
Airport Names: |
|
Location: | St. George, Alaska, United States |
GPS Coordinates: | 56°34'37"N by 169°39'48"W |
Area Served: | St. George, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 125 feet (38 meters) |
# of Runways: | 1 |
View all routes: | Routes from STG |
More Information: | STG Maps & Info |
Facts about Portsmouth International Airport at Pease (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.
- 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.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- 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 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.
Facts about St. George Airport (STG):
- In addition to being known as "St. George Airport", another name for STG is "PBV".
- As per Federal Aviation Administration records, the airport had 604 passenger boardings in calendar year 2008, 610 enplanements in 2009, and 643 in 2010.
- St. George Airport (STG) currently has only 1 runway.
- The closest airport to St. George Airport (STG) is St. Paul Island Airport (SNP), which is located 46 miles (74 kilometers) NNW of STG.
- The furthest airport from St. George Airport (STG) is Cape Town International Airport (CPT), which is located 10,827 miles (17,424 kilometers) away in Cape Town, South Africa.
- Because of St. George Airport's relatively low elevation of 125 feet, planes can take off or land at St. George Airport 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.