Nonstop flight route between Port Heiden, Alaska, United States and Riverside, California, United States:

About this route:

A direct, nonstop flight between Port Heiden Airport (PTH), Port Heiden, Alaska, United States and March Air Reserve Base (RIV), Riverside, California, United States would travel a Great Circle distance of 2,501 miles (or 4,025 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 Port Heiden 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 Port Heiden 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 Port Heiden Airport (PTH):

• Port Heiden Airport (PTH) has 2 runways.
• Beginning in 1958 the airport was used to support Port Heiden Air Force Station, a Cold War United States Air Force Distant Early Warning Line radar station.
• In addition to being known as "Port Heiden Airport", other names for PTH include "Port Heiden Air Force Station" and "Fort Morrow Army Airfield".
• The closest airport to Port Heiden Airport (PTH) is Chignik Fisheries Airport (KCG), which is located 44 miles (71 kilometers) S of PTH.
• The furthest airport from Port Heiden Airport (PTH) is George Airport (GRJ), which is located 10,850 miles (17,462 kilometers) away in George, South Africa.
• Because of Port Heiden Airport's relatively low elevation of 95 feet, planes can take off or land at Port Heiden 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.

Facts about March Air Reserve Base (RIV):

• With the sudden end of World War I in November 1918, the future operational status of March Field was unknown.
• The closest airport to March Air Reserve Base (RIV) is Flabob Airport (RIR), which is located only 11 miles (18 kilometers) NW of RIV.
• As March Field began to take on the appearance of a permanent military installation, the base's basic mission changed.
• The Army quickly set about establishing the new air field.
• However, by 1921, the decision had been made to phase down all activities at the base in accordance with sharply reduced military budgets.
• 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.
• March is one of the oldest airfields operated by the United States military, being established as Alessandro Flying Training Field in February 1918.
• On 20 March 1918, Alessandro Flying Training Field became March Field, named in honor of Second Lieutenant Peyton C.
• On a lighter note, entertainer Bob Hope's first USO show was held at March on 6 May 1941.