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

About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Andersen Air Force Base (UAM), Agana, Guam would travel a Great Circle distance of 6,298 miles (or 10,136 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 Roundup 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 Roundup 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 Roundup Airport (RPX):

• The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
• Roundup Airport (RPX) has 2 runways.

Facts about Andersen Air Force Base (UAM):

• Andersen AFB was established in 1944 as North Field and is named for Brigadier General James Roy Andersen.
• 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.
• At Andersen, the wing assumed responsibility for administering two active and one semi-active bases plus an assortment of communication, weather, radar, rescue and other facilities and units including the Marianas Air Material Area, a wing size unit.
• 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.
• The base returned to routine operations by the late 1970s, but continued to serve as one of SAC's strategic locations.
• Andersen saw an end to its role in rotational duties when the B-47 was phased out and replaced by the B-52 Stratofortress.
• 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 Strategic Air Command continued its 90-day unit rotational training program, and began to take over control over the base from the FEAF.
• Andersen Air Force Base was established on 3 December 1944 and is named for Brigadier General James Roy Andersen.