Nonstop flight route between Great Falls, Montana, United States and Duncan, Oklahoma, United States:

About this route:

A direct, nonstop flight between Malmstrom Air Force Base (GFA), Great Falls, Montana, United States and Halliburton Field (DUC), Duncan, Oklahoma, United States would travel a Great Circle distance of 1,131 miles (or 1,820 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 relatively short distance between Malmstrom Air Force Base and Halliburton Field, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Malmstrom Air Force Base (GFA):

• With the phaseout of the B-36 from the inventory in the late 1950s, the need for fighter escorts of SAC bombers was eliminated.
• Great Falls was reassigned to the Central Air Defense Force at Richards-Gebaur Air Force Base in 1953.
• This included one of the greatest technology transfers in the history of the world.
• The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
• In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
• Z-147 was completely replaced by a new ARSR-4 JSS site on Bootlegger Ridge, about 14 miles northeast of Great Falls AFB.
• DC-20 was initially under the Great Falls Air Defense Sector, established on 1 March 1959.
• Upon completion of the B-17 training program, in October 1943, Great Falls Army Air Base was transferred to the Air Transport Command and units from Gore Field were transferred to the base.

Facts about Halliburton Field (DUC):

• The closest airport to Halliburton Field (DUC) is Lawton–Fort Sill Regional Airport (LAW), which is located 27 miles (43 kilometers) WNW of DUC.
• Halliburton Field (DUC) currently has only 1 runway.
• The furthest airport from Halliburton Field (DUC) is Sir Gaëtan Duval Airport (RRG), which is located 10,908 miles (17,554 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Halliburton Field", another name for DUC is "Duncan Municipal Airport".