Nonstop flight route between Blackwater, Queensland, Australia and Arlington County, Virginia (near Washington, D.C.), United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from BLT to DCA:
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- About this route
- BLT Airport Information
- DCA Airport Information
- Facts about BLT
- Facts about DCA
- Map of Nearest Airports to BLT
- List of Nearest Airports to BLT
- Map of Furthest Airports from BLT
- List of Furthest Airports from BLT
- Map of Nearest Airports to DCA
- List of Nearest Airports to DCA
- Map of Furthest Airports from DCA
- List of Furthest Airports from DCA
About this route:
A direct, nonstop flight between Blackwater Airport (BLT), Blackwater, Queensland, Australia and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 9,565 miles (or 15,394 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 Blackwater Airport and Ronald Reagan Washington National 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 Blackwater Airport and Ronald Reagan Washington National Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | BLT / YBTR | 
| Airport Name: | Blackwater Airport | 
| Location: | Blackwater, Queensland, Australia | 
| GPS Coordinates: | 23°36'11"S by 148°48'24"E | 
| Operator/Owner: | BHP Billiton Mitsubishi Alliance | 
| Airport Type: | Public | 
| Elevation: | 657 feet (200 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from BLT | 
| More Information: | BLT Maps & Info | 
Arrival 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 | 
Facts about Blackwater Airport (BLT):
- Blackwater Airport (BLT) currently has only 1 runway.
- The closest airport to Blackwater Airport (BLT) is Emerald Airport (EMD), which is located 40 miles (64 kilometers) W of BLT.
- Because of Blackwater Airport's relatively low elevation of 657 feet, planes can take off or land at Blackwater 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 Blackwater Airport (BLT) is Agostinho Neto Airport (NTO), which is located 11,844 miles (19,061 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
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.
- 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 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.
- Ronald Reagan Washington National Airport (DCA) has 3 runways.
- In May 2012, the U.S.
- Other than 40 slot exemptions, flights into and out of DCA are not allowed to exceed 1,250 statute miles in any direction nonstop, in an effort to send air traffic to the larger but more distant Washington Dulles International Airport.
- On March 23, 2011, the air traffic control supervisor on duty reportedly fell asleep during the night shift.




