Nonstop flight route between Arlington County, Virginia (near Washington, D.C.), United States and Ranong, Thailand:
Departure Airport:

Arrival Airport:

Distance from DCA to UNN:
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- About this route
- DCA Airport Information
- UNN Airport Information
- Facts about DCA
- Facts about UNN
- 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 UNN
- List of Nearest Airports to UNN
- Map of Furthest Airports from UNN
- List of Furthest Airports from UNN
About this route:
A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 9,065 miles (or 14,589 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 Ranong 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 Ranong 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: | UNN / VTSR |
Airport Name: | Ranong Airport |
Location: | Ranong, Thailand |
GPS Coordinates: | 9°46'38"N by 98°35'7"E |
Area Served: | Tambon Ratchakrut, Amphoe Mueang Ranong, Ranong, Thailand |
Operator/Owner: | Government |
Elevation: | 57 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from UNN |
More Information: | UNN Maps & Info |
Facts about Ronald Reagan Washington National Airport (DCA):
- 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.
- Ronald Reagan Washington National Airport (DCA) has 3 runways.
- 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.
- The Washington National Airport Terminal and South Hangar Line were listed on the National Register of Historic Places in 1997.
- On February 6, 1998 President Bill Clinton signed legislation changing the airport's name from Washington National Airport to Ronald Reagan Washington National Airport, to honor the former president on his 87th birthday.
- The airport is southwest of Washington, D.C.
- 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.
Facts about Ranong Airport (UNN):
- The closest airport to Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of UNN.
- Ranong Airport (UNN) currently has only 1 runway.
- Because of Ranong Airport's relatively low elevation of 57 feet, planes can take off or land at Ranong 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 Ranong Airport (UNN) is Capitán FAP Carlos Martínez de Pinillos International Airport (TRU), which is nearly antipodal to Ranong Airport (meaning Ranong Airport is almost on the exact opposite side of the Earth from Capitán FAP Carlos Martínez de Pinillos International Airport), and is located 12,241 miles (19,699 kilometers) away in Trujillo, Peru.