| Cloppenburg to Smolyan | 1,097.89 mi (1,766.88 km) |
| Cloppenburg to Sofia | 993.71 mi (1,599.22 km) |
| Cloppenburg to Sopot | 1,043.48 mi (1,679.32 km) |
| Cloppenburg to Sozopol | 1,158.25 mi (1,864.03 km) |
| Cloppenburg to Sredets | 1,143.69 mi (1,840.59 km) |
| Cloppenburg to Stamboliyski | 1,063.17 mi (1,711.01 km) |
| Cloppenburg to Stara Zagora | 1,085.30 mi (1,746.63 km) |
| Cloppenburg to Svilengrad | 1,138.40 mi (1,832.08 km) |
| Cloppenburg to Svishtov | 1,015.73 mi (1,634.65 km) |
| Cloppenburg to Targovishte | 1,077.54 mi (1,734.13 km) |
| Cloppenburg to Teteven | 1,013.41 mi (1,630.93 km) |
| Cloppenburg to Troyan | 1,030.38 mi (1,658.23 km) |
| Cloppenburg to Tryavna | 1,058.15 mi (1,702.93 km) |
| Cloppenburg to Tutrakan | 1,040.79 mi (1,675.00 km) |
| Cloppenburg to Varna | 1,127.62 mi (1,814.72 km) |
