Nonstop flight route between Salmon, Idaho, United States and Arlington County, Virginia (near Washington, D.C.), United States:

About this route:

A direct, nonstop flight between Lemhi County Airport (SMN), Salmon, Idaho, United States and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 1,923 miles (or 3,095 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 Ronald Reagan Washington National Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Lemhi County Airport (SMN):

• Lemhi County Airport (SMN) currently has only 1 runway.
• 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.
• 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 Ronald Reagan Washington National Airport (DCA):

• The closest airport to Ronald Reagan Washington National Airport (DCA) is Bolling Air Force Base (BOF), which is located only 1 miles (2 kilometers) ESE of DCA.
• When visibility and ceiling are below minimums for the River Visual and southerly winds restrict northbound runway operations, aircraft fly an offset localizer or GPS approach to Runway 19, again involving a final turn moments before touchdown, or they fly a VOR or GPS approach to either of the shorter Runways 15 and 22, which are marginally long enough for airline jets.
• In 1984 Secretary of Transportation Elizabeth Dole appointed a commission to study transferring National and Dulles Airports from the Federal Aviation Administration to a local entity, which could use airport revenues to finance improvements.
• The Washington National Airport Terminal and South Hangar Line were listed on the National Register of Historic Places in 1997.
• In 1999, Senator John McCain of Arizona introduced legislation to remove the 1,250-statute-mile restriction, infuriating some local residents concerned about noise and traffic from increased service by larger, long-haul aircraft.
• The airport is southwest of Washington, D.C.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• The furthest airport from Ronald Reagan Washington National Airport (DCA) is Margaret River Airport (MGV), which is located 11,682 miles (18,800 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Ronald Reagan Washington National Airport's relatively low elevation of 15 feet, planes can take off or land at Ronald Reagan Washington National 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.
• Reagan National Airport is subject to a federally mandated perimeter limitation and may not accommodate nonstop flights to or from cities beyond 1,250-statute-mile, with limited exceptions.