| Richton Park to Smolyan | 5,317.00 mi (8,556.88 km) |
| Richton Park to Sofia | 5,212.89 mi (8,389.33 km) |
| Richton Park to Sopot | 5,267.05 mi (8,476.49 km) |
| Richton Park to Sozopol | 5,384.01 mi (8,664.72 km) |
| Richton Park to Sredets | 5,369.63 mi (8,641.58 km) |
| Richton Park to Stamboliyski | 5,284.20 mi (8,504.10 km) |
| Richton Park to Stara Zagora | 5,310.10 mi (8,545.78 km) |
| Richton Park to Svilengrad | 5,362.67 mi (8,630.38 km) |
| Richton Park to Svishtov | 5,241.66 mi (8,435.63 km) |
| Richton Park to Targovishte | 5,303.29 mi (8,534.81 km) |
| Richton Park to Teteven | 5,236.64 mi (8,427.56 km) |
| Richton Park to Troyan | 5,254.54 mi (8,456.37 km) |
| Richton Park to Tryavna | 5,283.53 mi (8,503.02 km) |
| Richton Park to Tutrakan | 5,265.10 mi (8,473.35 km) |
| Richton Park to Varna | 5,351.69 mi (8,612.72 km) |
