Nonstop flight route between Monrovia, Liberia and Portland, Oregon, United States:

About this route:

A direct, nonstop flight between Roberts International Airport Roberts Field (ROB), Monrovia, Liberia and Portland-Troutdale Airport (TTD), Portland, Oregon, United States would travel a Great Circle distance of 6,950 miles (or 11,185 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 Portland-Troutdale 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 Portland-Troutdale 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):

• 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.
• During the Second Liberian Civil War, the main terminal building suffered major damage, and remains vacant and unenclosed.
• 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.
• 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.
• 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 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.

Facts about Portland-Troutdale Airport (TTD):

• Portland-Troutdale Airport is a public use airport located 10 nautical miles east of the central business district of Portland, in Multnomah County, Oregon, United States.
• Because of Portland-Troutdale Airport's relatively low elevation of 39 feet, planes can take off or land at Portland-Troutdale 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.
• Portland-Troutdale Airport (TTD) currently has only 1 runway.
• The airport was purchased by the Port of Portland in 1942, serving as a reliever airport for nearby Portland International Airport until the 1950s.
• The furthest airport from Portland-Troutdale Airport (TTD) is Tôlanaro Airport (FTU), which is located 10,901 miles (17,543 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Portland-Troutdale Airport (TTD) is Portland International Airport (PDX), which is located only 10 miles (16 kilometers) WNW of TTD.