| Caldicot to Smolyan | 1,463.20 mi (2,354.79 km) |
| Caldicot to Sofia | 1,360.81 mi (2,190.01 km) |
| Caldicot to Sopot | 1,421.50 mi (2,287.68 km) |
| Caldicot to Sozopol | 1,553.88 mi (2,500.73 km) |
| Caldicot to Sredets | 1,535.54 mi (2,471.22 km) |
| Caldicot to Stamboliyski | 1,433.47 mi (2,306.94 km) |
| Caldicot to Stara Zagora | 1,467.54 mi (2,361.77 km) |
| Caldicot to Svilengrad | 1,517.39 mi (2,442.00 km) |
| Caldicot to Svishtov | 1,409.12 mi (2,267.75 km) |
| Caldicot to Targovishte | 1,474.79 mi (2,373.45 km) |
| Caldicot to Teteven | 1,390.85 mi (2,238.36 km) |
| Caldicot to Troyan | 1,410.86 mi (2,270.56 km) |
| Caldicot to Tryavna | 1,444.14 mi (2,324.12 km) |
| Caldicot to Tutrakan | 1,446.59 mi (2,328.07 km) |
| Caldicot to Varna | 1,532.29 mi (2,465.98 km) |
