Nonstop flight route between Rapid City, South Dakota, United States and San Juan Island, Washington, United States:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and Roche Harbor Seaplane Base (RCE), San Juan Island, Washington, United States would travel a Great Circle distance of 1,002 miles (or 1,613 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 relatively short distance between Ellsworth Air Force Base and Roche Harbor Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Ellsworth Air Force Base (RCA):

• In October 1960, Ellsworth entered the "Space Age," with the activation of the 850th Strategic Missile Squadron, initially assigned to the 28 BMW.
• Ellsworth's population of approximately 8,000 includes military members, family members and civilian employees.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• On 15 July 1945, the 225th AAFBU was inactivated and Rapid City AAB was placed on standby status as the Army Air Forces began to demobilize.
• The closest airport to Ellsworth Air Force Base (RCA) is Rapid City Regional Airport (RAP), which is located only 7 miles (11 kilometers) S of RCA.
• Air Defense Command deactivated the Ellsworth radar site on 15 August 1962 and the 740th was discontinued.
• When operations resumed in 1947 the base was a new United States Air Force asset.
• The furthest airport from Ellsworth Air Force Base (RCA) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,026 kilometers) away in Rodrigues Island, Mauritius.

Facts about Roche Harbor Seaplane Base (RCE):

• Roche Harbor Seaplane Base (RCE) has 2 runways.
• The closest airport to Roche Harbor Seaplane Base (RCE) is Friday Harbor Seaplane Base (FBS), which is located only 8 miles (14 kilometers) SE of RCE.
• Because of Roche Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Roche Harbor Seaplane Base 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 addition to being known as "Roche Harbor Seaplane Base", another name for RCE is "W39".
• The furthest airport from Roche Harbor Seaplane Base (RCE) is Tôlanaro Airport (FTU), which is located 10,722 miles (17,256 kilometers) away in Tôlanaro, Madagascar.