Nonstop flight route between Tonopah, Nevada, United States and Port Huron, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from XSD to PHN:
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- About this route
- XSD Airport Information
- PHN Airport Information
- Facts about XSD
- Facts about PHN
- 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 PHN
- List of Nearest Airports to PHN
- Map of Furthest Airports from PHN
- List of Furthest Airports from PHN
About this route:
A direct, nonstop flight between Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 1,825 miles (or 2,936 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 St. Clair County International 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: | PHN / KPHN |
Airport Name: | St. Clair County International Airport |
Location: | Port Huron, Michigan, United States |
GPS Coordinates: | 42°54'38"N by 82°31'44"W |
Area Served: | Port Huron, Michigan |
Operator/Owner: | St. Clair County |
Airport Type: | Public |
Elevation: | 650 feet (198 meters) |
# of Runways: | 2 |
View all routes: | Routes from PHN |
More Information: | PHN Maps & Info |
Facts about Tonopah Test Range Airport (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 Tonopah Range Airport first opened in 1957, supporting operations on the Test Range itself, which was used for United States Atomic Energy Commission ) funded weapon programs.
- 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.
- The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
- After the 4477th TES was inactivated, the remaining assets were reconstituted as a detachment of the 57th Fighter Wing at Nellis AFB.
- The assets of the squadron could not go to the boneyard at Davis-Monthan AFB, and the fate of them remains in some cases, still classified.
Facts about St. Clair County International Airport (PHN):
- Because of St. Clair County International Airport's relatively low elevation of 650 feet, planes can take off or land at St. Clair County International 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 furthest airport from St. Clair County International Airport (PHN) is Margaret River Airport (MGV), which is located 11,302 miles (18,189 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to St. Clair County International Airport (PHN) is Sarnia (Chris Hadfield) Airport (YZR), which is located only 13 miles (20 kilometers) ENE of PHN.
- St. Clair County International Airport (PHN) has 2 runways.