| Viterbo to Sangeorz-Bai | 703.02 mi (1,131.39 km) |
| Viterbo to Sannicolau Mare | 490.31 mi (789.08 km) |
| Viterbo to Santana | 537.10 mi (864.37 km) |
| Viterbo to Satu Mare | 642.79 mi (1,034.47 km) |
| Viterbo to Scobinti | 801.00 mi (1,289.08 km) |
| Viterbo to Scornicesti | 640.59 mi (1,030.93 km) |
| Viterbo to Sebes | 617.76 mi (994.19 km) |
| Viterbo to Seini | 657.10 mi (1,057.51 km) |
| Viterbo to Sfantu-Gheorghe | 717.90 mi (1,155.34 km) |
| Viterbo to Sibiu | 640.77 mi (1,031.22 km) |
| Viterbo to Sighetu Marmatiei | 687.76 mi (1,106.84 km) |
| Viterbo to Sighisoara | 678.88 mi (1,092.55 km) |
| Viterbo to Simeria | 589.85 mi (949.27 km) |
| Viterbo to Sinaia | 698.64 mi (1,124.35 km) |
| Viterbo to Slatina | 630.07 mi (1,013.99 km) |
