| Dunkirk to Smolyan | 4,952.02 mi (7,969.50 km) |
| Dunkirk to Sofia | 4,848.52 mi (7,802.94 km) |
| Dunkirk to Sopot | 4,905.64 mi (7,894.86 km) |
| Dunkirk to Sozopol | 5,028.61 mi (8,092.77 km) |
| Dunkirk to Sredets | 5,012.84 mi (8,067.38 km) |
| Dunkirk to Stamboliyski | 4,920.62 mi (7,918.98 km) |
| Dunkirk to Stara Zagora | 4,950.01 mi (7,966.27 km) |
| Dunkirk to Svilengrad | 5,001.66 mi (8,049.40 km) |
| Dunkirk to Svishtov | 4,884.81 mi (7,861.35 km) |
| Dunkirk to Targovishte | 4,948.04 mi (7,963.10 km) |
| Dunkirk to Teteven | 4,875.04 mi (7,845.62 km) |
| Dunkirk to Troyan | 4,893.83 mi (7,875.85 km) |
| Dunkirk to Tryavna | 4,924.52 mi (7,925.25 km) |
| Dunkirk to Tutrakan | 4,912.63 mi (7,906.11 km) |
| Dunkirk to Varna | 4,999.47 mi (8,045.86 km) |
