Nonstop flight route between St. George, Utah, United States and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from SGU to SMN:
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- About this route
- SGU Airport Information
- SMN Airport Information
- Facts about SGU
- Facts about SMN
- Map of Nearest Airports to SGU
- List of Nearest Airports to SGU
- Map of Furthest Airports from SGU
- List of Furthest Airports from SGU
- 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 St. George Municipal Airport (relocated 2011) (SGU), St. George, Utah, United States and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 555 miles (or 894 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 St. George Municipal Airport (relocated 2011) 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: | SGU / KSGU |
Airport Names: |
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Location: | St. George, Utah, United States |
GPS Coordinates: | 37°5'26"N by 113°35'35"W |
Operator/Owner: | City of St. George |
Airport Type: | Public |
Elevation: | 2941 feet (896 meters) |
# of Runways: | 1 |
View all routes: | Routes from SGU |
More Information: | SGU 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 St. George Municipal Airport (relocated 2011) (SGU):
- In addition to being known as "St. George Municipal Airport (relocated 2011)", another name for SGU is "St. George Municipal Airport (1972-2010)".
- St. George Municipal Airport (relocated 2011) (SGU) currently has only 1 runway.
- The furthest airport from St. George Municipal Airport (relocated 2011) (SGU) is Sir Gaëtan Duval Airport (RRG), which is located 11,225 miles (18,065 kilometers) away in Rodrigues Island, Mauritius.
- All airline flights moved to the new St.
- The closest airport to St. George Municipal Airport (relocated 2011) (SGU) is Mesquite Airport (MFH), which is located 31 miles (50 kilometers) SW of SGU.
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.
- Lemhi County Airport (SMN) currently has only 1 runway.
- 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.
- 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.