Nonstop flight route between St. Mary's, Alaska, United States and Jaffrey, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from KSM to AFN:
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- About this route
- KSM Airport Information
- AFN Airport Information
- Facts about KSM
- Facts about AFN
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to AFN
- List of Nearest Airports to AFN
- Map of Furthest Airports from AFN
- List of Furthest Airports from AFN
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Jaffrey Airport - Silver Ranch Airpark (AFN), Jaffrey, New Hampshire, United States would travel a Great Circle distance of 3,708 miles (or 5,967 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 St. Mary's Airport and Jaffrey Airport - Silver Ranch Airpark, 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 St. Mary's Airport and Jaffrey Airport - Silver Ranch Airpark. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | AFN / KAFN |
Airport Name: | Jaffrey Airport - Silver Ranch Airpark |
Location: | Jaffrey, New Hampshire, United States |
GPS Coordinates: | 42°48'18"N by 72°0'10"W |
Area Served: | Jaffrey, New Hampshire |
Operator/Owner: | Jaffrey Municipal Airport Development Corp. |
Airport Type: | Public |
Elevation: | 1040 feet (317 meters) |
# of Runways: | 1 |
View all routes: | Routes from AFN |
More Information: | AFN Maps & Info |
Facts about St. Mary's Airport (KSM):
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- St. Mary's Airport (KSM) has 2 runways.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
Facts about Jaffrey Airport - Silver Ranch Airpark (AFN):
- The furthest airport from Jaffrey Airport - Silver Ranch Airpark (AFN) is Margaret River Airport (MGV), which is located 11,713 miles (18,851 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Jaffrey Airport - Silver Ranch Airpark (AFN) is Dillant–Hopkins Airport (EEN), which is located only 15 miles (24 kilometers) WNW of AFN.
- Jaffrey Airport - Silver Ranch Airpark (AFN) currently has only 1 runway.