Driving Time from Mayagüez to San Juan
Driving from Mayagüez to San Juan is about 4,057 mi and takes roughly 68 hr 43 min. See the fuel-cost estimate, distance and route tips.
Mayagüez and San Juan are about 3,438 mi (5,533 km) apart in a straight line. By road that works out to roughly 4,057 mi (6,529 km), a drive of about 68 hr 43 min. A nonstop flight covers the great-circle distance in approximately 6 hr 49 min.
Note: this is a long, likely intercontinental distance — driving may cross water and not be practical without ferries. Flying is usually the realistic option.
| Straight-line distance | 3,438 mi / 5,533 km |
| Road distance (est.) | 4,057 mi / 6,529 km |
| Driving time (est.) | 68 hr 43 min |
| Nonstop flight (est.) | 6 hr 49 min |
| Driving fuel (est., 1-way) | $507 |
| Typical flight fare | $450–$1100 |
| Geographic midpoint | -6.669, -67.800 |
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
Mayagüez to San Juan is about 3,438 mi (5,533 km) in a straight line, and roughly 4,057 mi (6,529 km) by road.