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

About this route:

A direct, nonstop flight between Portland International Airport (PDX), Portland, Oregon, United States and Roberts International Airport Roberts Field (ROB), Monrovia, Liberia would travel a Great Circle distance of 6,958 miles (or 11,197 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 Portland International 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 Portland International 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 Portland International Airport (PDX):

• The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
• By the 1980s, the terminal building began an extensive renovation in order to update PDX to meet future needs.
• Concourses A and B are given mostly to Alaska Airlines and Horizon Air.
• Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland 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 1966 PDX had nonstop flights to SLC, DEN, ORD and no other cities farther east than Boise.
• Portland International Airport handled 1,502,956 passengers last year.
• Portland International Airport (PDX) has 3 runways.
• The present PDX site was purchased by the Portland City Council in 1936.
• The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
• An expanded parking garage, new control tower, and canopy over the curbside were finished in the late 1990s.

Facts about Roberts International Airport Roberts Field (ROB):

• Roberts is the principal international airport in Liberia, and one of only two with paved runways in the nation.
• 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.
• In 1942, Liberia signed a Defense Pact with 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 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.
• Presently, daily commercial traffic consists of only one or two arrivals.