Nonstop flight route between Seletar, Singapore and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from XSP to SMN:
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- About this route
- XSP Airport Information
- SMN Airport Information
- Facts about XSP
- Facts about SMN
- Map of Nearest Airports to XSP
- List of Nearest Airports to XSP
- Map of Furthest Airports from XSP
- List of Furthest Airports from XSP
- 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 Seletar Airport (XSP), Seletar, Singapore and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 8,478 miles (or 13,643 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 Seletar 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 Seletar 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: | XSP / WSSL |
Airport Names: |
|
Location: | Seletar, Singapore |
GPS Coordinates: | 1°25'0"N by 103°52'4"E |
Area Served: | Singapore |
Operator/Owner: | Government of Singapore |
Airport Type: | Civilian public usage |
Elevation: | 36 feet (11 meters) |
# of Runways: | 1 |
View all routes: | Routes from XSP |
More Information: | XSP 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 Seletar Airport (XSP):
- RAF Seletar served as a civil airport from 1930 before the opening of Singapore's first civil airport at Kallang on 12 June 1937.
- In addition to being known as "Seletar Airport", other names for XSP include "实里达机场" and "செலட்டர் வான்முகம்".
- The Republic of Singapore Flying Club, Seletar Flying Club and Singapore Flying College are situated at Seletar Airport.
- During the Japanese occupation, Seletar as was in the case of Sembawang came under the Imperial Japanese Navy Air Service while Tengah fell under the jurisdiction of the Imperial Japanese Army Air Force.
- Seletar Airport (XSP) currently has only 1 runway.
- Because of Seletar Airport's relatively low elevation of 36 feet, planes can take off or land at Seletar 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 Seletar Airport (XSP) is Francisco de Orellana Airport (OCC), which is nearly antipodal to Seletar Airport (meaning Seletar Airport is almost on the exact opposite side of the Earth from Francisco de Orellana Airport), and is located 12,348 miles (19,873 kilometers) away in Coca, Ecuador.
- A Short Singapore Mk III flying boat, similar to those operated by 205 Sqn.
- The closest airport to Seletar Airport (XSP) is Paya Lebar Air Base (PLAB) (QPG), which is located only 5 miles (8 kilometers) SE of XSP.
Facts about Lemhi County Airport (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.
- The closest airport to Lemhi County Airport (SMN) is Challis Airport (CHL), which is located 45 miles (72 kilometers) SSW of 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.
- Lemhi County Airport (SMN) currently has only 1 runway.