| Charlton Kings to Smolyan | 1,440.82 mi (2,318.78 km) |
| Charlton Kings to Sofia | 1,338.04 mi (2,153.36 km) |
| Charlton Kings to Sopot | 1,397.89 mi (2,249.69 km) |
| Charlton Kings to Sozopol | 1,528.87 mi (2,460.48 km) |
| Charlton Kings to Sredets | 1,510.86 mi (2,431.50 km) |
| Charlton Kings to Stamboliyski | 1,410.58 mi (2,270.11 km) |
| Charlton Kings to Stara Zagora | 1,443.64 mi (2,323.31 km) |
| Charlton Kings to Svilengrad | 1,493.88 mi (2,404.17 km) |
| Charlton Kings to Svishtov | 1,384.08 mi (2,227.45 km) |
| Charlton Kings to Targovishte | 1,449.50 mi (2,332.75 km) |
| Charlton Kings to Teteven | 1,367.23 mi (2,200.35 km) |
| Charlton Kings to Troyan | 1,387.01 mi (2,232.18 km) |
| Charlton Kings to Tryavna | 1,419.85 mi (2,285.03 km) |
| Charlton Kings to Tutrakan | 1,420.44 mi (2,285.97 km) |
| Charlton Kings to Varna | 1,506.37 mi (2,424.26 km) |
