| Roermond to Smolyan | 1,106.93 mi (1,781.44 km) |
| Roermond to Sofia | 1,003.06 mi (1,614.26 km) |
| Roermond to Sopot | 1,059.71 mi (1,705.44 km) |
| Roermond to Sozopol | 1,186.24 mi (1,909.07 km) |
| Roermond to Sredets | 1,169.15 mi (1,881.56 km) |
| Roermond to Stamboliyski | 1,074.89 mi (1,729.87 km) |
| Roermond to Stara Zagora | 1,104.38 mi (1,777.32 km) |
| Roermond to Svilengrad | 1,155.76 mi (1,860.02 km) |
| Roermond to Svishtov | 1,041.60 mi (1,676.30 km) |
| Roermond to Targovishte | 1,106.28 mi (1,780.39 km) |
| Roermond to Teteven | 1,029.10 mi (1,656.18 km) |
| Roermond to Troyan | 1,048.05 mi (1,686.67 km) |
| Roermond to Tryavna | 1,079.44 mi (1,737.19 km) |
| Roermond to Tutrakan | 1,075.31 mi (1,730.55 km) |
| Roermond to Varna | 1,161.64 mi (1,869.48 km) |
