| Fiumicino to Smolyan | 642.94 mi (1,034.71 km) |
| Fiumicino to Sofia | 570.91 mi (918.79 km) |
| Fiumicino to Sopot | 642.88 mi (1,034.62 km) |
| Fiumicino to Sozopol | 793.18 mi (1,276.51 km) |
| Fiumicino to Sredets | 767.84 mi (1,235.73 km) |
| Fiumicino to Stamboliyski | 632.02 mi (1,017.13 km) |
| Fiumicino to Stara Zagora | 688.63 mi (1,108.25 km) |
| Fiumicino to Svilengrad | 718.97 mi (1,157.07 km) |
| Fiumicino to Svishtov | 677.52 mi (1,090.36 km) |
| Fiumicino to Targovishte | 737.12 mi (1,186.28 km) |
| Fiumicino to Teteven | 619.11 mi (996.37 km) |
| Fiumicino to Troyan | 641.74 mi (1,032.78 km) |
| Fiumicino to Tryavna | 681.32 mi (1,096.49 km) |
| Fiumicino to Tutrakan | 743.76 mi (1,196.97 km) |
| Fiumicino to Varna | 804.08 mi (1,294.04 km) |
