Flight Time from Siena to Terni
The flight from Siena to Terni covers about 84 mi and takes roughly 39 min nonstop. Flight duration estimate and fare guide.
39 min
Nonstop flight
84 mi
Straight-line
110 mi
By road
39 min
Flight time
Siena and Terni are about 84 mi (136 km) apart in a straight line. By road that works out to roughly 110 mi (177 km), a drive of about 1 hr 58 min. A nonstop flight covers the great-circle distance in approximately 39 min.
| Straight-line distance | 84 mi / 136 km |
| Road distance (est.) | 110 mi / 177 km |
| Driving time (est.) | 1 hr 58 min |
| Nonstop flight (est.) | 39 min |
| Driving fuel (est., 1-way) | $14 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 42.943, 11.991 |
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
Siena to Terni is about 84 mi (136 km) in a straight line, and roughly 110 mi (177 km) by road.