Nonstop flight route between Salmon, Idaho, United States and Isiro, Democratic Republic of the Congo:
Departure Airport:

Arrival Airport:

Distance from SMN to IRP:
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- About this route
- SMN Airport Information
- IRP Airport Information
- Facts about SMN
- Facts about IRP
- Map of Nearest Airports to SMN
- List of Nearest Airports to SMN
- Map of Furthest Airports from SMN
- List of Furthest Airports from SMN
- Map of Nearest Airports to IRP
- List of Nearest Airports to IRP
- Map of Furthest Airports from IRP
- List of Furthest Airports from IRP
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Matari Airport (IRP), Isiro, Democratic Republic of the Congo would travel a Great Circle distance of 8,366 miles (or 13,464 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 Lemhi County Airport and Matari 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 Lemhi County Airport and Matari Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | IRP / FZJH |
Airport Name: | Matari Airport |
Location: | Isiro, Democratic Republic of the Congo |
GPS Coordinates: | 2°49'39"N by 27°35'17"E |
Area Served: | Isiro |
Operator/Owner: | Government |
Airport Type: | Civil |
Elevation: | 2438 feet (743 meters) |
# of Runways: | 1 |
View all routes: | Routes from IRP |
More Information: | IRP Maps & Info |
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.
- 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.
- Lemhi County Airport (SMN) currently has only 1 runway.
Facts about Matari Airport (IRP):
- Matari Airport (IRP) currently has only 1 runway.
- The closest airport to Matari Airport (IRP) is Buta Zega Airport (BZU), which is located 193 miles (310 kilometers) W of IRP.
- The furthest airport from Matari Airport (IRP) is Cassidy International Airport (CXI), which is located 11,960 miles (19,248 kilometers) away in Christmas Island, Kiribati.