| Tarquinia to Smolyan | 666.44 mi (1,072.53 km) |
| Tarquinia to Sofia | 590.18 mi (949.81 km) |
| Tarquinia to Sopot | 662.38 mi (1,066.00 km) |
| Tarquinia to Sozopol | 813.25 mi (1,308.80 km) |
| Tarquinia to Sredets | 788.19 mi (1,268.47 km) |
| Tarquinia to Stamboliyski | 653.52 mi (1,051.74 km) |
| Tarquinia to Stara Zagora | 708.88 mi (1,140.84 km) |
| Tarquinia to Svilengrad | 741.41 mi (1,193.18 km) |
| Tarquinia to Svishtov | 693.33 mi (1,115.81 km) |
| Tarquinia to Targovishte | 754.46 mi (1,214.19 km) |
| Tarquinia to Teteven | 637.53 mi (1,026.01 km) |
| Tarquinia to Troyan | 660.32 mi (1,062.69 km) |
| Tarquinia to Tryavna | 700.00 mi (1,126.54 km) |
| Tarquinia to Tutrakan | 758.28 mi (1,220.33 km) |
| Tarquinia to Varna | 821.59 mi (1,322.23 km) |
