Nonstop flight route between Tonopah, Nevada, United States and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from XSD to SDY:
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- About this route
- XSD Airport Information
- SDY Airport Information
- Facts about XSD
- Facts about SDY
- Map of Nearest Airports to XSD
- List of Nearest Airports to XSD
- Map of Furthest Airports from XSD
- List of Furthest Airports from XSD
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 934 miles (or 1,503 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 Tonopah Test Range Airport and Sidney-Richland Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | XSD / KTNX |
Airport Name: | Tonopah Test Range Airport |
Location: | Tonopah, Nevada, United States |
GPS Coordinates: | 37°47'40"N by 116°46'42"W |
View all routes: | Routes from XSD |
More Information: | XSD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY Maps & Info |
Facts about Tonopah Test Range Airport (XSD):
- After the 4477th TES was inactivated, the remaining assets were reconstituted as a detachment of the 57th Fighter Wing at Nellis AFB.
- On 16 August 1966, Iraqi Air Force Captain Munir Redfa took off from Rasheed Air Base, near Baghdad on a routine navigation training flight.
- The Tonopah Test Range airfield came into existence in 1957 and was used by the Department of Energy, the Air Force, and several contractors.
- In 1980 the 4477th TEF was re-designated as the 4477th Test and Evaluation Squadron and the operation was renamed again to Constant Peg.
- The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
- In 1969 Pakistan supplied the U.S.
- 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 Sidney-Richland Municipal Airport (SDY):
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.