Nonstop flight route between Sidney, Montana, United States and Santa Maria, Portugal:
Departure Airport:

Arrival Airport:

Distance from SDY to SMA:
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- About this route
- SDY Airport Information
- SMA Airport Information
- Facts about SDY
- Facts about SMA
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- Map of Nearest Airports to SMA
- List of Nearest Airports to SMA
- Map of Furthest Airports from SMA
- List of Furthest Airports from SMA
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Santa Maria Airport (SMA), Santa Maria, Portugal would travel a Great Circle distance of 3,926 miles (or 6,318 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 Sidney-Richland Municipal Airport and Santa Maria 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 Sidney-Richland Municipal Airport and Santa Maria Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | SMA / LPAZ |
Airport Names: |
|
Location: | Santa Maria, Portugal |
GPS Coordinates: | 36°58'26"N by 25°10'15"W |
Area Served: | Vila do Porto |
Operator/Owner: | Government of Portugal |
Airport Type: | Public |
Elevation: | 308 feet (94 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMA |
More Information: | SMA Maps & Info |
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.
- 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.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- 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.
Facts about Santa Maria Airport (SMA):
- Because of Santa Maria Airport's relatively low elevation of 308 feet, planes can take off or land at Santa Maria 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 forerunner of SATA Air Açores initiated services concurrently to São Miguel and Terceira from Santa Maria Airport on 5 August 1947, using a plane christened "Açor".
- Santa Maria Airport handled 93,436 passengers last year.
- In addition to being known as "Santa Maria Airport", another name for SMA is "Aeroporto de Santa Maria".
- Santa Maria Airport (SMA) currently has only 1 runway.
- The furthest airport from Santa Maria Airport (SMA) is Moruya Airport (MYA), which is nearly antipodal to Santa Maria Airport (meaning Santa Maria Airport is almost on the exact opposite side of the Earth from Moruya Airport), and is located 12,166 miles (19,579 kilometers) away in Moruya, New South Wales, Australia.
- The closest airport to Santa Maria Airport (SMA) is João Paulo II Airport (PDL), which is located 60 miles (97 kilometers) NNW of SMA.