Flight Time from Saint Croix to San Juan
The flight from Saint Croix to San Juan covers about 3,413 mi and takes roughly 6 hr 47 min nonstop. Flight duration estimate and fare guide.
Saint Croix and San Juan are about 3,413 mi (5,493 km) apart in a straight line. By road that works out to roughly 4,028 mi (6,482 km), a drive of about 68 hr 14 min. A nonstop flight covers the great-circle distance in approximately 6 hr 47 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 | 3,413 mi / 5,493 km |
| Road distance (est.) | 4,028 mi / 6,482 km |
| Driving time (est.) | 68 hr 14 min |
| Nonstop flight (est.) | 6 hr 47 min |
| Driving fuel (est., 1-way) | $503 |
| Typical flight fare | $450–$1100 |
| Geographic midpoint | -6.909, -66.536 |
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
Saint Croix to San Juan is about 3,413 mi (5,493 km) in a straight line, and roughly 4,028 mi (6,482 km) by road.