| Dourdan to Smolyan | 1,201.08 mi (1,932.95 km) |
| Dourdan to Sofia | 1,101.70 mi (1,773.02 km) |
| Dourdan to Sopot | 1,166.75 mi (1,877.71 km) |
| Dourdan to Sozopol | 1,307.01 mi (2,103.44 km) |
| Dourdan to Sredets | 1,286.61 mi (2,070.59 km) |
| Dourdan to Stamboliyski | 1,174.39 mi (1,890.00 km) |
| Dourdan to Stara Zagora | 1,214.19 mi (1,954.05 km) |
| Dourdan to Svilengrad | 1,261.27 mi (2,029.82 km) |
| Dourdan to Svishtov | 1,163.81 mi (1,872.98 km) |
| Dourdan to Targovishte | 1,230.57 mi (1,980.42 km) |
| Dourdan to Teteven | 1,136.47 mi (1,828.97 km) |
| Dourdan to Troyan | 1,157.72 mi (1,863.17 km) |
| Dourdan to Tryavna | 1,193.46 mi (1,920.68 km) |
| Dourdan to Tutrakan | 1,209.04 mi (1,945.75 km) |
| Dourdan to Varna | 1,292.08 mi (2,079.40 km) |
