| Porto Tolle to Smolyan | 664.19 mi (1,068.92 km) |
| Porto Tolle to Sofia | 570.06 mi (917.42 km) |
| Porto Tolle to Sopot | 639.36 mi (1,028.95 km) |
| Porto Tolle to Sozopol | 787.01 mi (1,266.58 km) |
| Porto Tolle to Sredets | 764.25 mi (1,229.94 km) |
| Porto Tolle to Stamboliyski | 641.32 mi (1,032.10 km) |
| Porto Tolle to Stara Zagora | 687.55 mi (1,106.51 km) |
| Porto Tolle to Svilengrad | 730.22 mi (1,175.17 km) |
| Porto Tolle to Svishtov | 650.49 mi (1,046.87 km) |
| Porto Tolle to Targovishte | 716.58 mi (1,153.23 km) |
| Porto Tolle to Teteven | 610.35 mi (982.26 km) |
| Porto Tolle to Troyan | 632.78 mi (1,018.36 km) |
| Porto Tolle to Tryavna | 671.02 mi (1,079.91 km) |
| Porto Tolle to Tutrakan | 706.53 mi (1,137.05 km) |
| Porto Tolle to Varna | 782.20 mi (1,258.83 km) |
