Nonstop flight route between Xieng Khouang, Laos and Tonopah, Nevada, United States:

About this route:

A direct, nonstop flight between Xieng Khouang Airport (XKH), Xieng Khouang, Laos and Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States would travel a Great Circle distance of 7,707 miles (or 12,404 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 Xieng Khouang Airport and Tonopah Test Range 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 Xieng Khouang Airport and Tonopah Test Range 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 Xieng Khouang Airport (XKH):

• The closest airport to Xieng Khouang Airport (XKH) is Luang Prabang International Airport (LPQ), which is located 73 miles (117 kilometers) WNW of XKH.
• In addition to being known as "Xieng Khouang Airport", another name for XKH is "ສະຫນາມບິນຊຽງຂວາງ".
• The furthest airport from Xieng Khouang Airport (XKH) is Maria Reiche Neuman Airport (NZC), which is nearly antipodal to Xieng Khouang Airport (meaning Xieng Khouang Airport is almost on the exact opposite side of the Earth from Maria Reiche Neuman Airport), and is located 12,097 miles (19,468 kilometers) away in Nazca, Ica Region, Peru.

Facts about Tonopah Test Range Airport (XSD):

• In 1980 the 4477th TEF was re-designated as the 4477th Test and Evaluation Squadron and the operation was renamed again to Constant Peg.
• Several locations were considered, Michael Army Airfield at the Dugway Proving Grounds in Utah, and the Gila Bend Air Force Auxiliary Field on the Goldwater Range in Arizona.
• After the 4477th TES was inactivated, the remaining assets were reconstituted as a detachment of the 57th Fighter Wing at Nellis AFB.
• The primary access to the facility is off of U.S.
• The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
• The furthest airport from Tonopah Test Range Airport (XSD) is Pierrefonds Airport (ZSE), which is located 11,207 miles (18,036 kilometers) away in Saint-Pierre, Réunion.
• The MiG-21 posed a major threat to Israeli Air Defenses as well as to American pilots over the skies of North Vietnam.
• In 2006, the Constant Peg program was declassified and the USAF held a series of press conferences about the former top secret US MiGs.
• Foreign military sales of United States fighter aircraft to Indonesia and Egypt in the mid-1970s to replace the Soviet fighter aircraft allowed these nations to clandestinely transfer un-needed MiG-21 ultra modern MiG-23s aircraft to the United States for evaluation.