| Peterlee to Smolyan | 1,491.16 mi (2,399.80 km) |
| Peterlee to Sofia | 1,386.91 mi (2,232.02 km) |
| Peterlee to Sopot | 1,440.37 mi (2,318.05 km) |
| Peterlee to Sozopol | 1,559.89 mi (2,510.41 km) |
| Peterlee to Sredets | 1,544.51 mi (2,485.64 km) |
| Peterlee to Stamboliyski | 1,457.84 mi (2,346.17 km) |
| Peterlee to Stara Zagora | 1,483.56 mi (2,387.57 km) |
| Peterlee to Svilengrad | 1,536.02 mi (2,471.98 km) |
| Peterlee to Svishtov | 1,416.44 mi (2,279.53 km) |
| Peterlee to Targovishte | 1,479.27 mi (2,380.65 km) |
| Peterlee to Teteven | 1,409.97 mi (2,269.13 km) |
| Peterlee to Troyan | 1,427.90 mi (2,297.98 km) |
| Peterlee to Tryavna | 1,457.27 mi (2,345.25 km) |
| Peterlee to Tutrakan | 1,443.90 mi (2,323.73 km) |
| Peterlee to Varna | 1,530.73 mi (2,463.47 km) |
