| Ritterhude to Smolyan | 1,090.08 mi (1,754.32 km) |
| Ritterhude to Sofia | 986.15 mi (1,587.05 km) |
| Ritterhude to Sopot | 1,033.98 mi (1,664.03 km) |
| Ritterhude to Sozopol | 1,145.44 mi (1,843.41 km) |
| Ritterhude to Sredets | 1,131.55 mi (1,821.06 km) |
| Ritterhude to Stamboliyski | 1,054.78 mi (1,697.50 km) |
| Ritterhude to Stara Zagora | 1,074.95 mi (1,729.97 km) |
| Ritterhude to Svilengrad | 1,128.35 mi (1,815.90 km) |
| Ritterhude to Svishtov | 1,003.84 mi (1,615.52 km) |
| Ritterhude to Targovishte | 1,064.73 mi (1,713.52 km) |
| Ritterhude to Teteven | 1,004.15 mi (1,616.02 km) |
| Ritterhude to Troyan | 1,020.55 mi (1,642.41 km) |
| Ritterhude to Tryavna | 1,047.31 mi (1,685.49 km) |
| Ritterhude to Tutrakan | 1,026.62 mi (1,652.19 km) |
| Ritterhude to Varna | 1,113.34 mi (1,791.75 km) |
