| Penwortham to Smolyan | 1,512.75 mi (2,434.53 km) |
| Penwortham to Sofia | 1,408.88 mi (2,267.38 km) |
| Penwortham to Sopot | 1,465.26 mi (2,358.12 km) |
| Penwortham to Sozopol | 1,589.95 mi (2,558.78 km) |
| Penwortham to Sredets | 1,573.43 mi (2,532.18 km) |
| Penwortham to Stamboliyski | 1,480.70 mi (2,382.96 km) |
| Penwortham to Stara Zagora | 1,509.66 mi (2,429.57 km) |
| Penwortham to Svilengrad | 1,561.28 mi (2,512.64 km) |
| Penwortham to Svishtov | 1,445.60 mi (2,326.47 km) |
| Penwortham to Targovishte | 1,509.68 mi (2,429.59 km) |
| Penwortham to Teteven | 1,434.68 mi (2,308.89 km) |
| Penwortham to Troyan | 1,453.45 mi (2,339.10 km) |
| Penwortham to Tryavna | 1,484.38 mi (2,388.88 km) |
| Penwortham to Tutrakan | 1,476.85 mi (2,376.76 km) |
| Penwortham to Varna | 1,563.51 mi (2,516.23 km) |
