Nonstop flight route between Arlington County, Virginia (near Washington, D.C.), United States and St. Mary's, Alaska, United States:
Departure Airport:
Arrival Airport:
Distance from DCA to KSM:
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- About this route
- DCA Airport Information
- KSM Airport Information
- Facts about DCA
- Facts about KSM
- Map of Nearest Airports to DCA
- List of Nearest Airports to DCA
- Map of Furthest Airports from DCA
- List of Furthest Airports from DCA
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,779 miles (or 6,081 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 Ronald Reagan Washington National Airport and St. Mary's 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 Ronald Reagan Washington National Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | DCA / KDCA |
Airport Name: | Ronald Reagan Washington National Airport |
Location: | Arlington County, Virginia (near Washington, D.C.), United States |
GPS Coordinates: | 38°51'7"N by 77°2'16"W |
Area Served: | Washington Metropolitan Area |
Operator/Owner: | Metropolitan Washington Airports Authority |
Airport Type: | Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 3 |
View all routes: | Routes from DCA |
More Information: | DCA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Facts about Ronald Reagan Washington National Airport (DCA):
- 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.
- 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.
- Reagan National Airport has noise restrictions that are some of the most restrictive in the country.
- 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.
- The airport opened June 16, 1941.
- Given Reagan National Airport's proximity to the city and high-security facilities, Reagan National has extra security precautions required by the Washington Air Defense Identification Zone that have been in place since the airport began operations.
- The Ronand Reagan Washington National Airport station on the Washington Metro, serving the Yellow and Blue lines, is located on an elevated outdoor platform station adjacent to Terminals B and C.
Facts about St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.