Nonstop flight route between Rapid City, South Dakota, United States and St. Helens, Tasmania, Australia:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and St Helens Airport (HLS), St. Helens, Tasmania, Australia would travel a Great Circle distance of 8,928 miles (or 14,368 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 Ellsworth Air Force Base and St Helens 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 Ellsworth Air Force Base and St Helens 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 Ellsworth Air Force Base (RCA):

• On 2 January 1942, the U.S.
• 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.
• In October 1960, Ellsworth entered the "Space Age," with the activation of the 850th Strategic Missile Squadron, initially assigned to the 28 BMW.
• Air Defense Command activated the 740th Aircraft Control and Warning Squadron at Rapid City AFB on 1 February 1953 under the ADC 31st Air Division.
• The 740th AC&W Squadron began operations in 1955 with AN/MPS-7 search radar, and initially the station functioned as a Ground-Control Intercept and warning station.
• 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.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• The airfield was again temporarily shut down from September 1946 – March 1947 and underwent a major construction program to upgrade the temporary wartime facilities to that of a permanent base.

Facts about St Helens Airport (HLS):

• Because of St Helens Airport's relatively low elevation of 158 feet, planes can take off or land at St Helens 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.
• St Helens Airport (HLS) currently has only 1 runway.
• The furthest airport from St Helens Airport (HLS) is Corvo Airport (CVU), which is nearly antipodal to St Helens Airport (meaning St Helens Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,317 miles (19,823 kilometers) away in Corvo Island, Azores, Portugal.
• The closest airport to St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.