| Comacchio to Smolyan | 665.94 mi (1,071.72 km) |
| Comacchio to Sofia | 573.18 mi (922.45 km) |
| Comacchio to Sopot | 643.06 mi (1,034.91 km) |
| Comacchio to Sozopol | 791.48 mi (1,273.77 km) |
| Comacchio to Sredets | 768.43 mi (1,236.67 km) |
| Comacchio to Stamboliyski | 643.96 mi (1,036.35 km) |
| Comacchio to Stara Zagora | 691.26 mi (1,112.47 km) |
| Comacchio to Svilengrad | 733.06 mi (1,179.74 km) |
| Comacchio to Svishtov | 656.20 mi (1,056.06 km) |
| Comacchio to Targovishte | 722.00 mi (1,161.95 km) |
| Comacchio to Teteven | 614.36 mi (988.71 km) |
| Comacchio to Troyan | 636.91 mi (1,025.00 km) |
| Comacchio to Tryavna | 675.43 mi (1,087.00 km) |
| Comacchio to Tutrakan | 713.29 mi (1,147.93 km) |
| Comacchio to Varna | 787.95 mi (1,268.08 km) |
