| Castellbisbal to Smolyan | 1,171.66 mi (1,885.61 km) |
| Castellbisbal to Sofia | 1,094.94 mi (1,762.13 km) |
| Castellbisbal to Sopot | 1,167.15 mi (1,878.35 km) |
| Castellbisbal to Sozopol | 1,318.16 mi (2,121.38 km) |
| Castellbisbal to Sredets | 1,293.25 mi (2,081.29 km) |
| Castellbisbal to Stamboliyski | 1,158.97 mi (1,865.18 km) |
| Castellbisbal to Stara Zagora | 1,213.97 mi (1,953.69 km) |
| Castellbisbal to Svilengrad | 1,246.87 mi (2,006.65 km) |
| Castellbisbal to Svishtov | 1,194.63 mi (1,922.57 km) |
| Castellbisbal to Targovishte | 1,257.33 mi (2,023.47 km) |
| Castellbisbal to Teteven | 1,141.66 mi (1,837.32 km) |
| Castellbisbal to Troyan | 1,164.52 mi (1,874.11 km) |
| Castellbisbal to Tryavna | 1,204.18 mi (1,937.94 km) |
| Castellbisbal to Tutrakan | 1,257.39 mi (2,023.57 km) |
| Castellbisbal to Varna | 1,324.47 mi (2,131.53 km) |
