Nonstop flight route between Gunnedah, New South Wales, Australia and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from GUH to SMN:
Share this route:
Jump to:
- About this route
- GUH Airport Information
- SMN Airport Information
- Facts about GUH
- Facts about SMN
- Map of Nearest Airports to GUH
- List of Nearest Airports to GUH
- Map of Furthest Airports from GUH
- List of Furthest Airports from GUH
- 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 Gunnedah Airport (GUH), Gunnedah, New South Wales, Australia and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 7,962 miles (or 12,814 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 Gunnedah Airport and Lemhi County 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 Gunnedah Airport and Lemhi County Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GUH / YGDH |
Airport Name: | Gunnedah Airport |
Location: | Gunnedah, New South Wales, Australia |
GPS Coordinates: | 30°57'42"S by 150°15'0"E |
Operator/Owner: | Gunnedah Shire Council |
Airport Type: | Public |
Elevation: | 863 feet (263 meters) |
# of Runways: | 2 |
View all routes: | Routes from GUH |
More Information: | GUH 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 Gunnedah Airport (GUH):
- Because of Gunnedah Airport's relatively low elevation of 863 feet, planes can take off or land at Gunnedah 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 furthest airport from Gunnedah Airport (GUH) is Santa Maria Airport (SMA), which is located 11,946 miles (19,225 kilometers) away in Santa Maria, Portugal.
- Gunnedah Airport (GUH) has 2 runways.
- The closest airport to Gunnedah Airport (GUH) is Tamworth Airport (TMW), which is located 36 miles (59 kilometers) ESE of GUH.
Facts about Lemhi County Airport (SMN):
- 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.
- 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.