Distance: San Antonio to Piedras Negras
Distance between San Antonio and Piedras Negras in kilometers, miles and nautical miles.
213 km
Straight-line
great-circle
115 nm
Nautical Miles
as the crow flies
288 km
By Road
3h 36m
46 minutes
By Air
flight time
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Frequently Asked Questions
How far is San Antonio from Piedras Negras?
The straight-line distance from San Antonio to Piedras Negras is 213 km (115 nautical miles). By road it is approximately 288 km (3h 36m drive). By air the flight takes about 46 minutes.
How many nautical miles is it from San Antonio to Piedras Negras?
The nautical distance from San Antonio to Piedras Negras is approximately 115 nautical miles.