Nonstop flight route between Pierre, South Dakota, United States and Monrovia, Liberia:

About this route:

A direct, nonstop flight between Pierre Regional Airport (PIR), Pierre, South Dakota, United States and Roberts International Airport Roberts Field (ROB), Monrovia, Liberia would travel a Great Circle distance of 5,914 miles (or 9,517 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 Pierre Regional Airport 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 Pierre Regional Airport 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 Pierre Regional Airport (PIR):

• A new terminal has been designed, and construction began in late Spring, 2011.
• Pierre Regional Airport (PIR) has 2 runways.
• In addition to being known as "Pierre Regional Airport", another name for PIR is "Pierre Army Airfield".
• The closest airport to Pierre Regional Airport (PIR) is Mobridge Municipal Airport (MBG), which is located 81 miles (130 kilometers) N of PIR.
• The furthest airport from Pierre Regional Airport (PIR) is Sir Gaëtan Duval Airport (RRG), which is located 10,493 miles (16,887 kilometers) away in Rodrigues Island, Mauritius.
• Federal Aviation Administration records say the airport had 15,983 passenger boardings in calendar year 2008, 13,692 in 2009 and 14,686 in 2010.

Facts about Roberts International Airport Roberts Field (ROB):

• Roberts International Airport Roberts Field handled 133,656 passengers last year.
• In October 2012, start-up airline Gambia Bird commenced twice-weekly non-stop services between Banjul and Robertsfield with an A319.
• Roberts International Airport Roberts Field (ROB) currently has only 1 runway.
• 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.
• 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.
• 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 story of Robertsfield is consistently intertwined with the history of Pan American World Airways.
• In 2012, Starbow Airlines publicly stated an intention to begin flights to Monrovia from Accra in 2013, and other reports suggested that Egyptair could resume its Cairo-Accra-Monrovia service, but as of mid-2014 neither of these developments have been realized.
• 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.