Nonstop flight route between Riverside, California, United States and St. Mary's, Alaska, United States:

About this route:

A direct, nonstop flight between March Air Reserve Base (RIV), Riverside, California, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 2,786 miles (or 4,483 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 March Air Reserve Base and St. Mary's 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 March Air Reserve Base and St. Mary's 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 March Air Reserve Base (RIV):

• The Army quickly set about establishing the new air field.
• In the decade before World War II, March Field took on much of its current appearance and also began to gain prominence.
• March is one of the oldest airfields operated by the United States military, being established as Alessandro Flying Training Field in February 1918.
• March Air Reserve Base, previously known as March Air Force Base is located in Riverside County, California between the cities of Riverside and Moreno Valley.
• 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.
• 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.
• On 15 August 1947, the 1st Fighter Wing was activated as part of AAF Regulation 20-15, "Reorganization of AAF Base Units and Installations," on 27 June 1947.
• As March Field began to take on the appearance of a permanent military installation, the base's basic mission changed.

Facts about St. Mary's Airport (KSM):

• Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
• The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
• St. Mary's Airport (KSM) has 2 runways.
• The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.