| Viterbo to Sacile | 245.93 mi (395.79 km) |
| Viterbo to Sala Consilina | 228.59 mi (367.88 km) |
| Viterbo to Salemi | 320.08 mi (515.11 km) |
| Viterbo to Salerno | 182.40 mi (293.54 km) |
| Viterbo to Salo | 233.25 mi (375.38 km) |
| Viterbo to Salsomaggiore Terme | 196.72 mi (316.59 km) |
| Viterbo to Saluzzo | 277.56 mi (446.69 km) |
| Viterbo to Salzano | 215.21 mi (346.34 km) |
| Viterbo to Samarate | 275.72 mi (443.73 km) |
| Viterbo to San Benedetto del Tronto | 97.53 mi (156.96 km) |
| Viterbo to San Biagio di Callalta | 226.22 mi (364.07 km) |
| Viterbo to San Bonifacio | 210.01 mi (337.97 km) |
| Viterbo to San Casciano in Val di Pesa | 97.32 mi (156.62 km) |
| Viterbo to San Cataldo | 355.20 mi (571.63 km) |
| Viterbo to San Cesareo | 54.78 mi (88.16 km) |
