Nonstop flight route between Salmon, Idaho, United States and College Park, Maryland, United States:
Departure Airport:

Arrival Airport:

Distance from SMN to CGS:
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- About this route
- SMN Airport Information
- CGS Airport Information
- Facts about SMN
- Facts about CGS
- 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 CGS
- List of Nearest Airports to CGS
- Map of Furthest Airports from CGS
- List of Furthest Airports from CGS
About this route:
A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and College Park Airport (CGS), College Park, Maryland, United States would travel a Great Circle distance of 1,925 miles (or 3,098 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 Lemhi County Airport and College Park Airport, the route shown on this map most likely still appears to be a straight line.
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: | CGS / KCGS |
Airport Name: | College Park Airport |
Location: | College Park, Maryland, United States |
GPS Coordinates: | 38°58'50"N by 76°55'20"W |
Operator/Owner: | Maryland-National Capital Park & Planning Commission |
Airport Type: | Public |
Elevation: | 48 feet (15 meters) |
# of Runways: | 1 |
View all routes: | Routes from CGS |
More Information: | CGS Maps & Info |
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.
- 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.
- 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 College Park Airport (CGS):
- Because of College Park Airport's relatively low elevation of 48 feet, planes can take off or land at College Park 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 College Park Airport (CGS) is Margaret River Airport (MGV), which is located 11,684 miles (18,803 kilometers) away in Margaret River, Western Australia, Australia.
- College Park Airport (CGS) currently has only 1 runway.
- In 1915 Cecil Peoli, one of the world's first professional aviators, died testing his 12-cylinder Rausenburger-powered biplane at College Park in preparation for New York and St.
- The museum offers changing exhibits, special events, lectures, workshops and programs for the public, schools and groups.
- In 1911, the nation's first military aviation school was opened at College Park, with newly trained pilots then-Lt.
- The closest airport to College Park Airport (CGS) is Bolling Air Force Base (BOF), which is located only 11 miles (17 kilometers) SSW of CGS.
- Since the 9/11 attacks, and owing to the airport's proximity to the national capital, the operations of the airport have been severely restricted by the Transportation Security Administration in the interest of national security, but civilian pilots are still free to use the airport after going through a one-time background check procedure.