Distance from Piedras Negras to San Marcos
How far is it from Piedras Negras to San Marcos? About 1,032 mi in a straight line and 1,217 mi by road. Driving time, flight time, midpoint and route details.
Piedras Negras and San Marcos are about 1,032 mi (1,660 km) apart in a straight line. By road that works out to roughly 1,217 mi (1,959 km), a drive of about 20 hr 37 min. A nonstop flight covers the great-circle distance in approximately 2 hr 24 min.
| Straight-line distance | 1,032 mi / 1,660 km |
| Road distance (est.) | 1,217 mi / 1,959 km |
| Driving time (est.) | 20 hr 37 min |
| Nonstop flight (est.) | 2 hr 24 min |
| Driving fuel (est., 1-way) | $152 |
| Typical flight fare | $200–$600 |
| Geographic midpoint | 31.190, -108.650 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Piedras Negras to San Marcos is about 1,032 mi (1,660 km) in a straight line, and roughly 1,217 mi (1,959 km) by road.