| Cities | Distance |
|---|
| Viterbo to Smolyan | 648.71 mi (1,043.99 km) |
| Viterbo to Sofia | 571.22 mi (919.29 km) |
| Viterbo to Sopot | 643.43 mi (1,035.51 km) |
| Viterbo to Sozopol | 794.39 mi (1,278.44 km) |
| Viterbo to Sredets | 769.41 mi (1,238.25 km) |
| Viterbo to Stamboliyski | 635.15 mi (1,022.18 km) |
| Viterbo to Stara Zagora | 690.12 mi (1,110.64 km) |
| Viterbo to Svilengrad | 723.28 mi (1,164.01 km) |
| Viterbo to Svishtov | 673.51 mi (1,083.90 km) |
| Viterbo to Targovishte | 734.94 mi (1,182.78 km) |
| Viterbo to Teteven | 618.32 mi (995.09 km) |
| Viterbo to Troyan | 641.14 mi (1,031.82 km) |
| Viterbo to Tryavna | 680.82 mi (1,095.67 km) |
| Viterbo to Tutrakan | 738.19 mi (1,187.99 km) |
| Viterbo to Varna | 802.09 mi (1,290.85 km) |
