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):

• 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 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.
• In addition to being known as "Portimão Airport", another name for PRM is "Aeródromo Municipal de Portimão".
• The closest airport to Portimão Airport (PRM) is Faro International Airport (FAO), which is located 35 miles (56 kilometers) ESE of PRM.

Facts about March Air Reserve Base (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.
• At the same time, the War Department announced its intentions to build several new military installations.
• 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 host unit at March is the Air Force Reserve's 452d Air Mobility Wing, which in addition to its operational flying mission, also provides host base support for numerous tenant units.
• Detached from the wing, the 22d Bombardment Group deployed its B-29s in early July 1950 to Kadena AB, Okinawa, where it came under control of FEAF Bomber Command.
• After the war, March was assigned to the new Tactical Air Command as part of the postwar reorganization of the Army Air Force.
• On 20 March 1918, Alessandro Flying Training Field became March Field, named in honor of Second Lieutenant Peyton C.