| Ter Apel to Smolyan | 1,131.74 mi (1,821.36 km) |
| Ter Apel to Sofia | 1,027.48 mi (1,653.56 km) |
| Ter Apel to Sopot | 1,078.41 mi (1,735.53 km) |
| Ter Apel to Sozopol | 1,194.99 mi (1,923.16 km) |
| Ter Apel to Sredets | 1,180.07 mi (1,899.14 km) |
| Ter Apel to Stamboliyski | 1,097.42 mi (1,766.12 km) |
| Ter Apel to Stara Zagora | 1,120.71 mi (1,803.61 km) |
| Ter Apel to Svilengrad | 1,173.61 mi (1,888.74 km) |
| Ter Apel to Svishtov | 1,052.04 mi (1,693.09 km) |
| Ter Apel to Targovishte | 1,114.30 mi (1,793.30 km) |
| Ter Apel to Teteven | 1,048.22 mi (1,686.94 km) |
| Ter Apel to Troyan | 1,065.51 mi (1,714.77 km) |
| Ter Apel to Tryavna | 1,093.86 mi (1,760.39 km) |
| Ter Apel to Tutrakan | 1,078.27 mi (1,735.31 km) |
| Ter Apel to Varna | 1,165.11 mi (1,875.07 km) |
