Nonstop flight route between Sault Ste. Marie, Michigan, United States and Monrovia, Liberia:

About this route:

A direct, nonstop flight between Kincheloe Air Force Base (INR), Sault Ste. Marie, Michigan, United States and Roberts International Airport Roberts Field (ROB), Monrovia, Liberia would travel a Great Circle distance of 5,150 miles (or 8,288 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 Kincheloe Air Force Base and Roberts International Airport Roberts Field, 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 Kincheloe Air Force Base and Roberts International Airport Roberts Field. 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 Kincheloe Air Force Base (INR):

• In the 1950s, the Air Force adopted a policy of dispersing Strategic Air Command bombers and tankers.
• As a result of the phase down, ADC moved the 438th Fighter Interceptor Squadron to Griffiss AFB, New York.
• The furthest airport from Kincheloe Air Force Base (INR) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
• On 16 February 1953, the first operational ADC unit, the 534th Air Defense Group was activated at Kinross AFB.
• The closest airport to Kincheloe Air Force Base (INR) is Chippewa County International Airport (CIU), which is located only 0 mile (0 kilometer) N of INR.
• In December 1965, the Department of Defense announced a decision to close Kincheloe AFB by October 1971.
• Kinross was considered a vital Air Defense Command base, an alert-status military base equipped with interceptors ready 24/7 to respond to unknown aircraft picked up by Ground Control Radar stations in the Great Lakes region.

Facts about Roberts International Airport Roberts Field (ROB):

• Roberts International Airport Roberts Field handled 133,656 passengers last year.
• The story of Robertsfield is consistently intertwined with the history of Pan American World Airways.
• The airport is clearly the nation's busiest most important aviation facility, with the only connections to Europe and the United States.
• The furthest airport from Roberts International Airport Roberts Field (ROB) is Nauru International Airport (INU), which is nearly antipodal to Roberts International Airport Roberts Field (meaning Roberts International Airport Roberts Field is almost on the exact opposite side of the Earth from Nauru International Airport), and is located 12,001 miles (19,314 kilometers) away in Yaren, Nauru.
• The closest airport to Roberts International Airport Roberts Field (ROB) is Spriggs Payne Airport (MLW), which is located 27 miles (44 kilometers) W of ROB.
• On 5 September 2010, Delta launched once weekly flights between Atlanta and Monrovia.
• Because of Roberts International Airport Roberts Field's relatively low elevation of 31 feet, planes can take off or land at Roberts International Airport Roberts Field 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.
• From 1943 to the end of WW2 in 1945, Roberts Field Airport, as it was then known, served as an alternative base for a contingent of 26 Squadron SAAF which flew Vickers Wellington Bombers on anti submarine and convoy escort patrols over the Atlantic.
• Roberts International Airport Roberts Field (ROB) currently has only 1 runway.