Nonstop flight route between Tonopah, Nevada, United States and Kobuk, Alaska, United States:

About this route:

A direct, nonstop flight between Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States and Kobuk Airport (OBU), Kobuk, Alaska, United States would travel a Great Circle distance of 2,543 miles (or 4,092 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 Tonopah Test Range Airport and Kobuk 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 Tonopah Test Range Airport and Kobuk 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 Tonopah Test Range Airport (XSD):

• The earliest known depiction of the airfield was on the July 1970 Air Force Tactical Pilotage Chart.
• Beginning in October 1979 Tonopah Test Range Airport was reconstructed and expanded.
• The MiG-21 posed a major threat to Israeli Air Defenses as well as to American pilots over the skies of North Vietnam.
• Tonopah Test Range Airport, at the Tonopah Test Range is 27 NM southeast of Tonopah, Nevada and 140 mi northwest of Las Vegas, Nevada.
• 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.
• Near the end of the Cold War the program was abandoned and the squadron was disbanded.
• 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.

Facts about Kobuk Airport (OBU):

• Kobuk Airport (OBU) currently has only 1 runway.
• In addition to being known as "Kobuk Airport", another name for OBU is "PAOB".
• The furthest airport from Kobuk Airport (OBU) is George Airport (GRJ), which is located 10,163 miles (16,356 kilometers) away in George, South Africa.
• As per the Federal Aviation Administration, this airport had 1,176 passenger boardings in calendar year 2008, 1,048 in 2009, and 1,255 in 2010.
• Because of Kobuk Airport's relatively low elevation of 142 feet, planes can take off or land at Kobuk 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.
• The closest airport to Kobuk Airport (OBU) is Dahl Creek Airport (DCK), which is located only 2 miles (3 kilometers) N of OBU.