Nonstop flight route between Greensboro, North Carolina, United States and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from GSO to SMN:
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- About this route
- GSO Airport Information
- SMN Airport Information
- Facts about GSO
- Facts about SMN
- Map of Nearest Airports to GSO
- List of Nearest Airports to GSO
- Map of Furthest Airports from GSO
- List of Furthest Airports from GSO
- Map of Nearest Airports to SMN
- List of Nearest Airports to SMN
- Map of Furthest Airports from SMN
- List of Furthest Airports from SMN
About this route:
A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 1,870 miles (or 3,010 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 Piedmont Triad International Airport and Lemhi County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GSO / KGSO |
Airport Name: | Piedmont Triad International Airport |
Location: | Greensboro, North Carolina, United States |
GPS Coordinates: | 36°5'52"N by 79°56'13"W |
Area Served: | Greensboro, High Point, and Winston-Salem, North Carolina |
Operator/Owner: | Piedmont Triad Airport Authority |
Airport Type: | Public |
Elevation: | 926 feet (282 meters) |
# of Runways: | 3 |
View all routes: | Routes from GSO |
More Information: | GSO Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SMN / KSMN |
Airport Name: | Lemhi County Airport |
Location: | Salmon, Idaho, United States |
GPS Coordinates: | 45°7'26"N by 113°52'53"W |
Operator/Owner: | Lemhi County |
Airport Type: | Public |
Elevation: | 4043 feet (1,232 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMN |
More Information: | SMN Maps & Info |
Facts about Piedmont Triad International Airport (GSO):
- US Airways operates a US Airways Club across from Gate 45.
- The closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.
- Piedmont Triad International Airport (GSO) has 3 runways.
- Piedmont Triad International Airport is an airport just west of Greensboro, serving Greensboro, High Point and Winston-Salem as well as the entire Piedmont Triad Region in North Carolina.
- Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad International 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.
- In the mid-1990s Continental Airlines developed a hub at the airport, largely to support its new Continental Lite low-fare product.
- Greensboro and Guilford County jointly purchased the Friendship property from Paul C.
- Independence Air began service into Greensboro when the airline started up with service to Washington Dulles International Airport.
- The furthest airport from Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Lemhi County Airport (SMN):
- The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of SMN.
- The furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.
- Lemhi County Airport (SMN) currently has only 1 runway.
- Because of Lemhi County Airport's high elevation of 4,043 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SMN. Combined with a high temperature, this could make SMN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.