Nonstop flight route between Sidney, Montana, United States and Agana, Guam:

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Andersen Air Force Base (UAM), Agana, Guam would travel a Great Circle distance of 6,454 miles (or 10,387 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 Andersen Air Force Base, 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 Andersen Air Force Base. 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):

• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• 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.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
• 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.
• 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.

Facts about Andersen Air Force Base (UAM):

• Flying out of Guam, S/Sgt Henry E Erwin of the 29th Bombardment Group was awarded the Medal of Honor for action that saved his B-29 during a mission over Koriyama, Japan, on 12 April 1945.
• In October 1949, the 19th Wing again became subordinated to the 20th Air Force and the remaining units in the Marianas and Bonin Islands were transferred to other organizations.
• The furthest airport from Andersen Air Force Base (UAM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Andersen Air Force Base (meaning Andersen Air Force Base is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,214 miles (19,656 kilometers) away in Salvador, Bahia, Brazil.
• Andersen Air Force Base is a United States Air Force base located approximately 4 miles northeast of Yigo near Agafo Gumas in the United States territory of Guam.
• Andersen saw an end to its role in rotational duties when the B-47 was phased out and replaced by the B-52 Stratofortress.
• Andersen is one of four bomber forward operating locations in the US Air Force.
• In support of Operation Arc Light, SAC activated the 4133rd Bombardment Wing on 1 February 1966, though the 3960th Strategic Wing, originally activated in 1955 as the 3960th Air Base Wing, continued as the base's host wing until it was inactivated and replaced by the 43rd Strategic Wing on 1 April 1970.
• Andersen AFB was established in 1944 as North Field and is named for Brigadier General James Roy Andersen.
• The closest airport to Andersen Air Force Base (UAM) is Guam International Airport (GUM), which is located only 11 miles (17 kilometers) SW of UAM.
• The 19th Bombardment Wing was formed at North AFB in 1948 from the resources of the former North Guam Air Force Base Command.