Nonstop flight route between Monrovia, Liberia and SeaTac (near Seattle and Tacoma), Washington, United States:

About this route:

A direct, nonstop flight between Roberts International Airport Roberts Field (ROB), Monrovia, Liberia and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 6,900 miles (or 11,104 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 Seattle–Tacoma 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 Seattle–Tacoma 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):

• 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 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.
• 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 handled 133,656 passengers last year.
• 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.
• 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.
• Roberts is the principal international airport in Liberia, and one of only two with paved runways in the nation.
• Roberts International Airport, informally known as Robertsfield, is an international airport in the West African nation of Liberia.
• Roberts International Airport Roberts Field (ROB) currently has only 1 runway.

Facts about Seattle–Tacoma International Airport (SEA):

• In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• The facility was originally scheduled to open in Spring 2011.
• Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• The airport has service to destinations throughout North America, Europe, the Middle East, and East Asia.
• The April 1957 OAG shows 216 departures a week on United, 80 Northwest, 35 Western, 21 Trans-Canada, 20 Pan Am, 20 Pacific Northern, and 10 Alaska.
• Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
• The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
• Seattle–Tacoma International Airport (SEA) has 3 runways.