| Whickham to Smolyan | 1,509.11 mi (2,428.67 km) |
| Whickham to Sofia | 1,404.84 mi (2,260.88 km) |
| Whickham to Sopot | 1,458.10 mi (2,346.59 km) |
| Whickham to Sozopol | 1,577.22 mi (2,538.29 km) |
| Whickham to Sredets | 1,561.93 mi (2,513.68 km) |
| Whickham to Stamboliyski | 1,475.71 mi (2,374.93 km) |
| Whickham to Stara Zagora | 1,501.21 mi (2,415.96 km) |
| Whickham to Svilengrad | 1,553.71 mi (2,500.46 km) |
| Whickham to Svishtov | 1,433.86 mi (2,307.57 km) |
| Whickham to Targovishte | 1,496.57 mi (2,408.50 km) |
| Whickham to Teteven | 1,427.72 mi (2,297.69 km) |
| Whickham to Troyan | 1,445.59 mi (2,326.45 km) |
| Whickham to Tryavna | 1,474.84 mi (2,373.53 km) |
| Whickham to Tutrakan | 1,460.98 mi (2,351.23 km) |
| Whickham to Varna | 1,547.82 mi (2,490.98 km) |
