Nonstop flight route between Salmon, Idaho, United States and Eastleigh (near Southampton), England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from SMN to SOU:
Share this route:
Jump to:
- About this route
- SMN Airport Information
- SOU Airport Information
- Facts about SMN
- Facts about SOU
- 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 SOU
- List of Nearest Airports to SOU
- Map of Furthest Airports from SOU
- List of Furthest Airports from SOU
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Southampton Airport (SOU), Eastleigh (near Southampton), England, United Kingdom would travel a Great Circle distance of 4,675 miles (or 7,524 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 Southampton 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 Southampton 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: | SOU / EGHI |
Airport Name: | Southampton Airport |
Location: | Eastleigh (near Southampton), England, United Kingdom |
GPS Coordinates: | 50°57'1"N by 1°21'24"W |
Area Served: | Southampton |
Operator/Owner: | Heathrow Airport Holdings |
Airport Type: | Public |
Elevation: | 44 feet (13 meters) |
# of Runways: | 1 |
View all routes: | Routes from SOU |
More Information: | SOU Maps & Info |
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.
Facts about Southampton Airport (SOU):
- Southampton Airport handled 1,722,758 passengers last year.
- The furthest airport from Southampton Airport (SOU) is Dunedin International Airport (DUD), which is located 11,918 miles (19,179 kilometers) away in Dunedin, Otago, New Zealand.
- Because of Southampton Airport's relatively low elevation of 44 feet, planes can take off or land at Southampton 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.
- Southampton Airport (SOU) currently has only 1 runway.
- The hostel was intended to be a short-term clearing house for those trans-migrants changing ships, but following changes to US immigration law which restricted entry to the United States under national origins quotas, some residents were forced to stay much longer.
- The closest airport to Southampton Airport (SOU) is Lasham Airfield (QLA), which is located 22 miles (35 kilometers) NE of SOU.
- The site's connection with aviation can be traced back to 1910 when pioneer pilot Edwin Rowland Moon used the meadows belonging to North Stoneham Farm as a take-off and landing spot for his monoplane, Moonbeam Mk II.
- Buses run to Southampton city center.
- During the 1950s a mainstay of business for the airport was the Cross channel car ferry service operated by Silver City Airways using Bristol Freighters and Superfreighters.