| Rickmansworth to Smolyan | 1,371.59 mi (2,207.37 km) |
| Rickmansworth to Sofia | 1,268.73 mi (2,041.82 km) |
| Rickmansworth to Sopot | 1,328.44 mi (2,137.92 km) |
| Rickmansworth to Sozopol | 1,459.33 mi (2,348.57 km) |
| Rickmansworth to Sredets | 1,441.33 mi (2,319.60 km) |
| Rickmansworth to Stamboliyski | 1,341.25 mi (2,158.53 km) |
| Rickmansworth to Stara Zagora | 1,374.16 mi (2,211.49 km) |
| Rickmansworth to Svilengrad | 1,424.44 mi (2,292.42 km) |
| Rickmansworth to Svishtov | 1,314.54 mi (2,115.55 km) |
| Rickmansworth to Targovishte | 1,379.98 mi (2,220.86 km) |
| Rickmansworth to Teteven | 1,297.78 mi (2,088.58 km) |
| Rickmansworth to Troyan | 1,317.53 mi (2,120.36 km) |
| Rickmansworth to Tryavna | 1,350.34 mi (2,173.15 km) |
| Rickmansworth to Tutrakan | 1,350.98 mi (2,174.20 km) |
| Rickmansworth to Varna | 1,436.89 mi (2,312.44 km) |
