| Clacton-on-Sea to Smolyan | 1,311.51 mi (2,110.67 km) |
| Clacton-on-Sea to Sofia | 1,208.21 mi (1,944.42 km) |
| Clacton-on-Sea to Sopot | 1,266.80 mi (2,038.71 km) |
| Clacton-on-Sea to Sozopol | 1,395.90 mi (2,246.49 km) |
| Clacton-on-Sea to Sredets | 1,378.30 mi (2,218.17 km) |
| Clacton-on-Sea to Stamboliyski | 1,280.52 mi (2,060.79 km) |
| Clacton-on-Sea to Stara Zagora | 1,312.12 mi (2,111.65 km) |
| Clacton-on-Sea to Svilengrad | 1,362.86 mi (2,193.32 km) |
| Clacton-on-Sea to Svishtov | 1,251.14 mi (2,013.51 km) |
| Clacton-on-Sea to Targovishte | 1,316.25 mi (2,118.30 km) |
| Clacton-on-Sea to Teteven | 1,236.14 mi (1,989.37 km) |
| Clacton-on-Sea to Troyan | 1,255.58 mi (2,020.67 km) |
| Clacton-on-Sea to Tryavna | 1,287.83 mi (2,072.55 km) |
| Clacton-on-Sea to Tutrakan | 1,286.28 mi (2,070.07 km) |
| Clacton-on-Sea to Varna | 1,372.42 mi (2,208.69 km) |
