Nonstop flight route between Roundup, Montana, United States and Tonopah, Nevada, United States:

About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States would travel a Great Circle distance of 732 miles (or 1,179 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 Roundup Airport and Tonopah Test Range Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Roundup Airport (RPX):

• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
• Roundup Airport (RPX) has 2 runways.
• The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.

Facts about Tonopah Test Range Airport (XSD):

• On 12 August 1968, the IDF obtained two Syrian Air Force MiG-17F fighters that had gotten lost during a training flight and landed inadvertently at Besert Landing Field, Israel.
• In 1997, the United States purchased 21 Moldovan aircraft for evaluation and analysis, under the Cooperative Threat Reduction accord.
• The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
• In addition, unconfirmed Soviet aircraft flown were MiG-25 Foxbat.
• 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.
• The MiG-21 posed a major threat to Israeli Air Defenses as well as to American pilots over the skies of North Vietnam.
• 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.
• None of the Soviet-designed aircraft at Tonopah flew in bad weather or at night.
• In 1980 the 4477th TEF was re-designated as the 4477th Test and Evaluation Squadron and the operation was renamed again to Constant Peg.