| Allauch to Smolyan | 984.81 mi (1,584.90 km) |
| Allauch to Sofia | 900.93 mi (1,449.91 km) |
| Allauch to Sopot | 972.70 mi (1,565.41 km) |
| Allauch to Sozopol | 1,123.39 mi (1,807.92 km) |
| Allauch to Sredets | 1,099.20 mi (1,768.99 km) |
| Allauch to Stamboliyski | 968.25 mi (1,558.24 km) |
| Allauch to Stara Zagora | 1,020.40 mi (1,642.18 km) |
| Allauch to Svilengrad | 1,057.30 mi (1,701.56 km) |
| Allauch to Svishtov | 993.91 mi (1,599.54 km) |
| Allauch to Targovishte | 1,058.32 mi (1,703.19 km) |
| Allauch to Teteven | 945.67 mi (1,521.90 km) |
| Allauch to Troyan | 968.54 mi (1,558.71 km) |
| Allauch to Tryavna | 1,007.92 mi (1,622.10 km) |
| Allauch to Tutrakan | 1,054.05 mi (1,696.33 km) |
| Allauch to Varna | 1,125.12 mi (1,810.70 km) |
