Nonstop flight route between Portimão, Algarve, Portugal and Riverside, California, United States:

About this route:

A direct, nonstop flight between Portimão Airport (PRM), Portimão, Algarve, Portugal and March Air Reserve Base (RIV), Riverside, California, United States would travel a Great Circle distance of 5,723 miles (or 9,211 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 Portimão Airport and March Air Reserve Base, 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 Portimão Airport and March Air Reserve Base. 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 Portimão Airport (PRM):

• The furthest airport from Portimão Airport (PRM) is Dargaville Aerodrome (DGR), which is nearly antipodal to Portimão Airport (meaning Portimão Airport is almost on the exact opposite side of the Earth from Dargaville Aerodrome), and is located 12,276 miles (19,756 kilometers) away in Dargaville, New Zealand.
• Because of Portimão Airport's relatively low elevation of 5 feet, planes can take off or land at Portimão 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.
• Portimão Airport (PRM) currently has only 1 runway.
• The closest airport to Portimão Airport (PRM) is Faro International Airport (FAO), which is located 35 miles (56 kilometers) ESE of PRM.
• In addition to being known as "Portimão Airport", another name for PRM is "Aeródromo Municipal de Portimão".

Facts about March Air Reserve Base (RIV):

• After the war, March was assigned to the new Tactical Air Command as part of the postwar reorganization of the Army Air Force.
• The closest airport to March Air Reserve Base (RIV) is Flabob Airport (RIR), which is located only 11 miles (18 kilometers) NW of RIV.
• The furthest airport from March Air Reserve Base (RIV) is Pierrefonds Airport (ZSE), which is located 11,461 miles (18,445 kilometers) away in Saint-Pierre, Réunion.
• On 1 May 1949, March became a part of the Strategic Air Command and the Fifteenth Air Force.
• Other activities at March ARB include F-16C/D alert site operations of the California Air National Guard's 144th Fighter Wing, which is also operationally-gained by ACC.
• As March Field began to take on the appearance of a permanent military installation, the base's basic mission changed.
• The signing of the armistice in November 1918 did not halt training at March Field.
• The establishment of March Air Force Base began in the early 20th century at a time when the United States was rushing to build up its military forces in anticipation of an entry into World War I.