Nonstop flight route between Reading, Pennsylvania, United States and Salmon, Idaho, United States:
Departure Airport:

Arrival Airport:

Distance from RDG to SMN:
Share this route:
Jump to:
- About this route
- RDG Airport Information
- SMN Airport Information
- Facts about RDG
- Facts about SMN
- Map of Nearest Airports to RDG
- List of Nearest Airports to RDG
- Map of Furthest Airports from RDG
- List of Furthest Airports from RDG
- 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 Reading Regional Airport (RDG), Reading, Pennsylvania, United States and Lemhi County Airport (SMN), Salmon, Idaho, United States would travel a Great Circle distance of 1,933 miles (or 3,111 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 relatively short distance between Reading Regional Airport and Lemhi County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | RDG / KRDG |
Airport Names: |
|
Location: | Reading, Pennsylvania, United States |
GPS Coordinates: | 40°22'42"N by 75°57'55"W |
Area Served: | Reading, Pennsylvania |
Operator/Owner: | Reading Regional Airport Authority |
Airport Type: | Public |
Elevation: | 344 feet (105 meters) |
# of Runways: | 2 |
View all routes: | Routes from RDG |
More Information: | RDG 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 Reading Regional Airport (RDG):
- In the 1950s Reading Air Services sponsored the National Maintenance & Operations Meeting, better known as the Reading Airshow, and later Reading Aerofest.
- Reading Army Airfield opened on 1 June 1943, with the 309th Base Headquarters and Air Base Squadron as its host unit.
- On 1 January 1944 Reading AAF was reassigned to Air Technical Service Command and became a sub-base of the Middletown Air Depot near Harrisburg.
- In addition to being known as "Reading Regional Airport", another name for RDG is "Carl A. Spaatz FieldReading Army Airfield".
- The closest airport to Reading Regional Airport (RDG) is Heritage Field (PTW), which is located 24 miles (38 kilometers) ESE of RDG.
- Because of Reading Regional Airport's relatively low elevation of 344 feet, planes can take off or land at Reading Regional 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 Mid-Atlantic Air Museum is located at Reading Airport.
- Reading Regional Airport (RDG) has 2 runways.
- Federal Aviation Administration records say the airport had 2,268 passenger boardings in calendar year 2006, 2,445 in 2005 and 9,288 in 2004.
- The furthest airport from Reading Regional Airport (RDG) is Margaret River Airport (MGV), which is located 11,683 miles (18,802 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Lemhi County Airport (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.
- 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.