Nonstop flight route between Biratnagar, Nepal and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from BIR to SMN:
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- About this route
- BIR Airport Information
- SMN Airport Information
- Facts about BIR
- Facts about SMN
- Map of Nearest Airports to BIR
- List of Nearest Airports to BIR
- Map of Furthest Airports from BIR
- List of Furthest Airports from BIR
- 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 Biratnagar Airport (BIR), Biratnagar, Nepal and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 7,313 miles (or 11,769 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 Biratnagar 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 Biratnagar 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: | BIR / VNVT |
Airport Name: | Biratnagar Airport |
Location: | Biratnagar, Nepal |
GPS Coordinates: | 26°28'53"N by 87°15'50"E |
Area Served: | Biratnagar, Nepal |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 236 feet (72 meters) |
# of Runways: | 1 |
View all routes: | Routes from BIR |
More Information: | BIR 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 Biratnagar Airport (BIR):
- Biratnagar Airport (BIR) currently has only 1 runway.
- The closest airport to Biratnagar Airport (BIR) is Bhojpur Airport (BHP), which is located 48 miles (77 kilometers) NNW of BIR.
- Because of Biratnagar Airport's relatively low elevation of 236 feet, planes can take off or land at Biratnagar 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.
- List of airports in Nepal
- The furthest airport from Biratnagar Airport (BIR) is Mataveri International Airport (IPC), which is located 11,408 miles (18,359 kilometers) away in Easter Island, Chile.
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.
- 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 furthest airport from Lemhi County Airport (SMN) is Tôlanaro Airport (FTU), which is located 10,686 miles (17,197 kilometers) away in Tôlanaro, Madagascar.