| Diez to Smolyan | 1,001.38 mi (1,611.57 km) |
| Diez to Sofia | 897.56 mi (1,444.48 km) |
| Diez to Sopot | 954.59 mi (1,536.27 km) |
| Diez to Sozopol | 1,082.26 mi (1,741.72 km) |
| Diez to Sredets | 1,064.85 mi (1,713.71 km) |
| Diez to Stamboliyski | 969.47 mi (1,560.21 km) |
| Diez to Stara Zagora | 999.46 mi (1,608.48 km) |
| Diez to Svilengrad | 1,050.66 mi (1,690.88 km) |
| Diez to Svishtov | 937.52 mi (1,508.80 km) |
| Diez to Targovishte | 1,002.51 mi (1,613.39 km) |
| Diez to Teteven | 923.96 mi (1,486.97 km) |
| Diez to Troyan | 943.06 mi (1,517.70 km) |
| Diez to Tryavna | 974.76 mi (1,568.73 km) |
| Diez to Tutrakan | 972.54 mi (1,565.16 km) |
| Diez to Varna | 1,058.63 mi (1,703.71 km) |
