Nonstop flight route between Rock Springs, Wyoming, United States and Île Sainte-Marie, Madagascar:
Departure Airport:

Arrival Airport:

Distance from RKS to SMS:
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- About this route
- RKS Airport Information
- SMS Airport Information
- Facts about RKS
- Facts about SMS
- Map of Nearest Airports to RKS
- List of Nearest Airports to RKS
- Map of Furthest Airports from RKS
- List of Furthest Airports from RKS
- Map of Nearest Airports to SMS
- List of Nearest Airports to SMS
- Map of Furthest Airports from SMS
- List of Furthest Airports from SMS
About this route:
A direct, nonstop flight between Rock Springs–Sweetwater County Airport (RKS), Rock Springs, Wyoming, United States and Sainte Marie Airport (SMS), Île Sainte-Marie, Madagascar would travel a Great Circle distance of 10,332 miles (or 16,628 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 Rock Springs–Sweetwater County Airport and Sainte Marie 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 Rock Springs–Sweetwater County Airport and Sainte Marie Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | RKS / KRKS |
Airport Name: | Rock Springs–Sweetwater County Airport |
Location: | Rock Springs, Wyoming, United States |
GPS Coordinates: | 41°35'39"N by 109°3'55"W |
Area Served: | Rock Springs, Wyoming |
Operator/Owner: | Rock Springs & Sweetwater County |
Airport Type: | Public |
Elevation: | 6765 feet (2,062 meters) |
# of Runways: | 2 |
View all routes: | Routes from RKS |
More Information: | RKS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SMS / FMMS |
Airport Name: | Sainte Marie Airport |
Location: | Île Sainte-Marie, Madagascar |
GPS Coordinates: | 17°5'38"S by 49°48'56"E |
Area Served: | Sainte Marie, Analanjirofo, Madagascar |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMS |
More Information: | SMS Maps & Info |
Facts about Rock Springs–Sweetwater County Airport (RKS):
- The closest airport to Rock Springs–Sweetwater County Airport (RKS) is Kemmerer Municipal Airport (EMM), which is located 79 miles (126 kilometers) WNW of RKS.
- Rock Springs–Sweetwater County Airport is eight miles east of Rock Springs, in Sweetwater County, Wyoming.
- Because of Rock Springs–Sweetwater County Airport's high elevation of 6,765 feet, planes must typically fly at a faster airspeed in order to takeoff or land at RKS. Combined with a high temperature, this could make RKS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- United Airlines DC-3s landed at Rock Springs until 1952.
- The airport covers 1,242 acres at an elevation of 6,765 feet.
- The furthest airport from Rock Springs–Sweetwater County Airport (RKS) is Sir Gaëtan Duval Airport (RRG), which is located 10,864 miles (17,484 kilometers) away in Rodrigues Island, Mauritius.
- Rock Springs–Sweetwater County Airport (RKS) has 2 runways.
Facts about Sainte Marie Airport (SMS):
- The furthest airport from Sainte Marie Airport (SMS) is Guerrero Negro Airport (GUB), which is located 11,161 miles (17,962 kilometers) away in Guerrero Negro, Baja California Sur, Mexico.
- Because of Sainte Marie Airport's relatively low elevation of 7 feet, planes can take off or land at Sainte Marie 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 Sainte Marie Airport (SMS) is Toamasino Airport (TMM), which is located 76 miles (122 kilometers) SSW of SMS.
- Sainte Marie Airport (SMS) currently has only 1 runway.