Nonstop flight route between Rapid City, South Dakota, United States and Phrae, Thailand:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and Phrae Airport (PRH), Phrae, Thailand would travel a Great Circle distance of 7,890 miles (or 12,698 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 Phrae 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 Phrae 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.
• On 1 June 1992, as part of the first major reorganization since the creation of USAF, the Air Force inactivated Strategic Air Command and assigned Ellsworth's organizations ) to the newly activated Air Combat Command.
• 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.
• After the Army closed their facilities, the military housing at the Nike Integrated Fire Control sites was transferred to control of Ellsworth, and was used as Air Force military family housing until about 1990.
• 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.
• 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 Phrae Airport (PRH):

• The closest airport to Phrae Airport (PRH) is Lampang Airport (LPT), which is located 44 miles (71 kilometers) WNW of PRH.
• The furthest airport from Phrae Airport (PRH) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is nearly antipodal to Phrae Airport (meaning Phrae Airport is almost on the exact opposite side of the Earth from Capitán FAP Renán Elías Olivera International Airport), and is located 12,050 miles (19,393 kilometers) away in Pisco, Peru.
• Because of Phrae Airport's relatively low elevation of 0 feet, planes can take off or land at Phrae 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.