| Marcq-en-Baroeul to Smolyan | 1,203.43 mi (1,936.73 km) |
| Marcq-en-Baroeul to Sofia | 1,100.65 mi (1,771.33 km) |
| Marcq-en-Baroeul to Sopot | 1,160.70 mi (1,867.97 km) |
| Marcq-en-Baroeul to Sozopol | 1,292.62 mi (2,080.27 km) |
| Marcq-en-Baroeul to Sredets | 1,274.32 mi (2,050.82 km) |
| Marcq-en-Baroeul to Stamboliyski | 1,173.21 mi (1,888.10 km) |
| Marcq-en-Baroeul to Stara Zagora | 1,206.58 mi (1,941.81 km) |
| Marcq-en-Baroeul to Svilengrad | 1,256.66 mi (2,022.40 km) |
| Marcq-en-Baroeul to Svishtov | 1,147.86 mi (1,847.29 km) |
| Marcq-en-Baroeul to Targovishte | 1,213.54 mi (1,953.01 km) |
| Marcq-en-Baroeul to Teteven | 1,130.05 mi (1,818.63 km) |
| Marcq-en-Baroeul to Troyan | 1,149.93 mi (1,850.63 km) |
| Marcq-en-Baroeul to Tryavna | 1,183.02 mi (1,903.88 km) |
| Marcq-en-Baroeul to Tutrakan | 1,185.59 mi (1,908.02 km) |
| Marcq-en-Baroeul to Varna | 1,271.17 mi (2,045.76 km) |
