Nonstop flight route between Gladwin, Michigan, United States and Île Sainte-Marie, Madagascar:
Departure Airport:

Arrival Airport:

Distance from GDW to SMS:
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- About this route
- GDW Airport Information
- SMS Airport Information
- Facts about GDW
- Facts about SMS
- Map of Nearest Airports to GDW
- List of Nearest Airports to GDW
- Map of Furthest Airports from GDW
- List of Furthest Airports from GDW
- 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 Gladwin Zettel Memorial Airport (GDW), Gladwin, Michigan, United States and Sainte Marie Airport (SMS), Île Sainte-Marie, Madagascar would travel a Great Circle distance of 9,203 miles (or 14,810 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 Gladwin Zettel Memorial 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 Gladwin Zettel Memorial 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: | GDW / KGDW |
Airport Name: | Gladwin Zettel Memorial Airport |
Location: | Gladwin, Michigan, United States |
GPS Coordinates: | 43°58'14"N by 84°28'29"W |
Area Served: | Gladwin, Michigan |
Operator/Owner: | City/County of Gladwin |
Airport Type: | Public |
Elevation: | 774 feet (236 meters) |
# of Runways: | 2 |
View all routes: | Routes from GDW |
More Information: | GDW 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 Gladwin Zettel Memorial Airport (GDW):
- For the 12-month period ending December 31, 2009, the airport had 4,454 general aviation aircraft operations, an average of 12 per day.
- Gladwin Zettel Memorial Airport (GDW) has 2 runways.
- The furthest airport from Gladwin Zettel Memorial Airport (GDW) is Margaret River Airport (MGV), which is located 11,182 miles (17,995 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gladwin Zettel Memorial Airport (GDW) is Mount Pleasant Municipal Airport (MOP), which is located 27 miles (44 kilometers) SSW of GDW.
- Because of Gladwin Zettel Memorial Airport's relatively low elevation of 774 feet, planes can take off or land at Gladwin Zettel Memorial 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.
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.