| Viterbo to Santa Venerina | 364.23 mi (586.17 km) |
| Viterbo to Santeramo in Colle | 265.51 mi (427.30 km) |
| Viterbo to Santo Stefano di Magra | 163.20 mi (262.65 km) |
| Viterbo to Santo Stino di Livenza | 230.82 mi (371.47 km) |
| Viterbo to Sarezzo | 242.46 mi (390.20 km) |
| Viterbo to Sarno | 170.55 mi (274.48 km) |
| Viterbo to Saronno | 268.87 mi (432.71 km) |
| Viterbo to Sarzana | 159.22 mi (256.23 km) |
| Viterbo to Sassari | 217.32 mi (349.75 km) |
| Viterbo to Sasso Marconi | 143.46 mi (230.87 km) |
| Viterbo to Sassuolo | 161.52 mi (259.94 km) |
| Viterbo to Sava | 315.47 mi (507.70 km) |
| Viterbo to Saviano | 162.08 mi (260.84 km) |
| Viterbo to Savigliano | 271.82 mi (437.45 km) |
| Viterbo to Savignano sul Panaro | 152.43 mi (245.31 km) |
