Nonstop flight route between Sidney, Montana, United States and Posadas, Argentina:

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Libertador General José de San Martín Airport (PSS), Posadas, Argentina would travel a Great Circle distance of 5,989 miles (or 9,639 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 Libertador General José de San Martín 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 Libertador General José de San Martín Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Sidney-Richland Municipal Airport (SDY):

• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
• 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.
• 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.
• 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.

Facts about Libertador General José de San Martín Airport (PSS):

• Libertador General José de San Martín Airport is located 7.5 km northwest of the center of Posadas, a city in the Misiones Province of Argentina.
• The closest airport to Libertador General José de San Martín Airport (PSS) is Libertador General José de San Martín Airport (JSM), which is located only 0 mile (0 kilometer) N of PSS.
• On June 12, 1988, Austral Lineas Aereas Flight 46 undershot the runway, resulting in 22 deaths.
• In addition to being known as "Libertador General José de San Martín Airport", another name for PSS is "Aeropuerto de Posadas "Libertador General San Martín"".
• The furthest airport from Libertador General José de San Martín Airport (PSS) is Taizhou Luqiao Airport (HYN), which is nearly antipodal to Libertador General José de San Martín Airport (meaning Libertador General José de San Martín Airport is almost on the exact opposite side of the Earth from Taizhou Luqiao Airport), and is located 12,258 miles (19,728 kilometers) away in Taizhou, Zhejiang, China.
• Libertador General José de San Martín Airport (PSS) currently has only 1 runway.
• Because of Libertador General José de San Martín Airport's relatively low elevation of 430 feet, planes can take off or land at Libertador General José de San Martín 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.