Nonstop flight route between Washington, D.C. / Virginia, United States and Siloam Springs, Arkansas, United States:
Departure Airport:

Arrival Airport:

Distance from IAD to SLG:
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- About this route
- IAD Airport Information
- SLG Airport Information
- Facts about IAD
- Facts about SLG
- Map of Nearest Airports to IAD
- List of Nearest Airports to IAD
- Map of Furthest Airports from IAD
- List of Furthest Airports from IAD
- Map of Nearest Airports to SLG
- List of Nearest Airports to SLG
- Map of Furthest Airports from SLG
- List of Furthest Airports from SLG
About this route:
A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Smith Field (SLG), Siloam Springs, Arkansas, United States would travel a Great Circle distance of 951 miles (or 1,530 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 Washington Dulles International Airport and Smith Field, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IAD / KIAD |
Airport Name: | Washington Dulles International Airport |
Location: | Washington, D.C. / Virginia, United States |
GPS Coordinates: | 38°56'39"N by 77°27'20"W |
Area Served: | Washington metropolitan area |
Airport Type: | Public |
Elevation: | 313 feet (95 meters) |
# of Runways: | 5 |
View all routes: | Routes from IAD |
More Information: | IAD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SLG / KSLG |
Airport Name: | Smith Field |
Location: | Siloam Springs, Arkansas, United States |
GPS Coordinates: | 36°11'30"N by 94°29'23"W |
Area Served: | Siloam Springs, Arkansas |
Operator/Owner: | City of Siloam Springs |
Airport Type: | Public |
Elevation: | 1191 feet (363 meters) |
# of Runways: | 1 |
View all routes: | Routes from SLG |
More Information: | SLG Maps & Info |
Facts about Washington Dulles International Airport (IAD):
- Under the development plan, future phases would see the addition of several new midfield concourses and a new south terminal.
- The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
- Washington Dulles International Airport (IAD) has 5 runways.
- The design included a landscaped man-made lake to collect rainwater, a low-rise hotel, and a row of office buildings along the north side of the main parking lot.
- Dulles is accessible via the Dulles Access Road/Dulles Greenway and State Route 28.
- The closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
- Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles International 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.
- In September 2009, a 121,700 square feet central Transportation Security Administration checkpoint was added on a new security mezzanine level of the main terminal.
Facts about Smith Field (SLG):
- The furthest airport from Smith Field (SLG) is Margaret River Airport (MGV), which is located 10,763 miles (17,321 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Smith Field (SLG) is Northwest Arkansas Regional Airport (XNA), which is located only 12 miles (19 kilometers) ENE of SLG.
- Smith Field (SLG) currently has only 1 runway.