Nonstop flight route between Perth, Western Australia, Australia and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from PER to SMN:
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- About this route
- PER Airport Information
- SMN Airport Information
- Facts about PER
- Facts about SMN
- Map of Nearest Airports to PER
- List of Nearest Airports to PER
- Map of Furthest Airports from PER
- List of Furthest Airports from PER
- 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 Perth Airport (PER), Perth, Western Australia, Australia and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 9,642 miles (or 15,517 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 Perth 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 Perth 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: | PER / YPPH |
Airport Name: | Perth Airport |
Location: | Perth, Western Australia, Australia |
GPS Coordinates: | 31°56'25"S by 115°58'0"E |
Area Served: | Perth, Western Australia |
Operator/Owner: | Government of Australia |
Airport Type: | Public |
Elevation: | 67 feet (20 meters) |
# of Runways: | 2 |
View all routes: | Routes from PER |
More Information: | PER 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 Perth Airport (PER):
- From 2003 to 2004, the International terminal underwent major internal refurbishments to provide an increased array of passenger services, including increased space for duty-free stores and food and beverage concession stands.
- The airport only received international status and was renamed to Perth International Airport in 1952.
- —Text of roadside plaque in memory of John Scott.
- Because of Perth Airport's relatively low elevation of 67 feet, planes can take off or land at Perth 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.
- Perth Airport handled 13,664,394 passengers last year.
- The closest airport to Perth Airport (PER) is Jandakot Airport (JAD), which is located only 12 miles (19 kilometers) SSW of PER.
- In November 1980, the Federal Transport Minister, Ralph Hunt, announced that a new international terminal would be built in Perth at a cost of A$26 million.
- The Guildford Aerodrome as it was then known was at best only a basic airfield.
- Perth Airport (PER) has 2 runways.
- It is the fourth busiest airport in Australia and services Australian and Indian Ocean destinations, as well as Johannesburg, Auckland, Dubai, Abu Dhabi, Guangzhou and Doha.
- The furthest airport from Perth Airport (PER) is L.F. Wade International Airport (BDA), which is nearly antipodal to Perth Airport (meaning Perth Airport is almost on the exact opposite side of the Earth from L.F. Wade International Airport), and is located 12,389 miles (19,938 kilometers) away in Ferry Reach (near Hamilton), Bermuda.
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.
- 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.