Nonstop flight route between Lyndonville, Vermont, United States and Tonopah, Nevada, United States:
Departure Airport:

Arrival Airport:

Distance from LLX to XSD:
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- About this route
- LLX Airport Information
- XSD Airport Information
- Facts about LLX
- Facts about XSD
- Map of Nearest Airports to LLX
- List of Nearest Airports to LLX
- Map of Furthest Airports from LLX
- List of Furthest Airports from LLX
- Map of Nearest Airports to XSD
- List of Nearest Airports to XSD
- Map of Furthest Airports from XSD
- List of Furthest Airports from XSD
About this route:
A direct, nonstop flight between Caledonia County Airport (LLX), Lyndonville, Vermont, United States and Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States would travel a Great Circle distance of 2,344 miles (or 3,772 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 Caledonia County Airport and Tonopah Test Range Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | LLX / KCDA |
Airport Names: |
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Location: | Lyndonville, Vermont, United States |
GPS Coordinates: | 44°34'9"N by 72°1'5"W |
Area Served: | Caledonia County |
Operator/Owner: | State of Vermont |
Airport Type: | Public |
Elevation: | 1188 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from LLX |
More Information: | LLX Maps & Info |
Arrival 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 |
Facts about Caledonia County Airport (LLX):
- Caledonia County Airport covers an area of 78 acres at an elevation of 1,188 feet above mean sea level.
- In addition to being known as "Caledonia County Airport", another name for LLX is "CDA".
- The furthest airport from Caledonia County Airport (LLX) is Margaret River Airport (MGV), which is located 11,610 miles (18,684 kilometers) away in Margaret River, Western Australia, Australia.
- Caledonia County Airport (LLX) currently has only 1 runway.
- The closest airport to Caledonia County Airport (LLX) is Newport State Airport (EFK), which is located 24 miles (39 kilometers) NNW of LLX.
Facts about Tonopah Test Range Airport (XSD):
- The primary access to the facility is off of U.S.
- In May 1973, when Project HAVE IDEA was initiated for joint technical and tactical evaluation of Soviet aircraft types, the tactical evaluation flights of foreign aircraft were undertaken by Detachment 1, 57th Fighter Weapons Wing.
- 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.
- On 17 May 1982, the move of the 4450th TG from Groom Lake to Tonopah was initiated, with the final components of the move completed in early 1983.
- None of the Soviet-designed aircraft at Tonopah flew in bad weather or at night.
- 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.
- In 2006, the Constant Peg program was declassified and the USAF held a series of press conferences about the former top secret US MiGs.
- The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
- 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.