Nonstop flight route between Dorado, Puerto Rico and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from DDP to SDY:
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- About this route
- DDP Airport Information
- SDY Airport Information
- Facts about DDP
- Facts about SDY
- Map of Nearest Airports to DDP
- List of Nearest Airports to DDP
- Map of Furthest Airports from DDP
- List of Furthest Airports from DDP
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Dorado Airport (DDP), Dorado, Puerto Rico and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 2,933 miles (or 4,720 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 Dorado Airport and Sidney-Richland Municipal 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 Dorado Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | DDP / |
Airport Name: | Dorado Airport |
Location: | Dorado, Puerto Rico |
GPS Coordinates: | 18°27'51"N by 66°17'33"W |
# of Runways: | 1 |
View all routes: | Routes from DDP |
More Information: | DDP Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Facts about Dorado Airport (DDP):
- In the early 1990s, the airport was officially closed.
- Dorado Airport (DDP) currently has only 1 runway.
- The furthest airport from Dorado Airport (DDP) is Barrow Island Airport (BWB), which is nearly antipodal to Dorado Airport (meaning Dorado Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,237 miles (19,694 kilometers) away in Barrow Island, Western Australia, Australia.
- The closest airport to Dorado Airport (DDP) is Fernando Luis Ribas Dominicci Airport (SIG), which is located only 13 miles (20 kilometers) E of DDP.
- During the early 1980s, Dorado was served by Dorado Wings, a small airline that operated commuter flights between Dorado Airport and Luis Muñoz Marín International Airport in San Juan.
Facts about Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.