Nonstop flight route between Monrovia, Liberia and Philadelphia, Pennsylvania, United States:

About this route:

A direct, nonstop flight between Roberts International Airport Roberts Field (ROB), Monrovia, Liberia and Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States would travel a Great Circle distance of 4,617 miles (or 7,431 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 Roberts International Airport Roberts Field and Philadelphia International Airport, 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 Roberts International Airport Roberts Field and Philadelphia International Airport. 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 Roberts International Airport Roberts Field (ROB):

• 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.
• Roberts is the principal international airport in Liberia, and one of only two with paved runways in the nation.
• Roberts International Airport Roberts Field handled 133,656 passengers last year.
• 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.
• In 1942, Liberia signed a Defense Pact with the United States.
• 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.
• Roberts International Airport Roberts Field (ROB) currently has only 1 runway.
• However, just one week prior to the inaugural flight, Delta announced that its planned launch would be suspended indefinitely.

Facts about Philadelphia International Airport (PHL):

• In the 1980s PHL hosted several hubs.
• During 1945 the Air Force reduced its use of the airport and it was returned to civil control that September.
• Philadelphia International Airport (PHL) has 4 runways.
• Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia International Airport 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.
• One of the two newest terminal buildings at the airport, Concourse A West has a very modern and innovative design, made by Kohn Pedersen Fox, Pierce Goodwin Alexander & Linville, and Kelly/Maiello.
• The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.
• By 2005, there were two studies which dealt with expanding runway capacity at PHL airport.
• Philadelphia International Airport is important to Philadelphia, its metropolitan region and the Commonwealth of Pennsylvania.
• During World War II the United States Army Air Forces used the airport as a First Air Force training airfield.
• The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.