| Ronda to Smolyan | 1,626.04 mi (2,616.87 km) |
| Ronda to Sofia | 1,561.15 mi (2,512.43 km) |
| Ronda to Sopot | 1,632.70 mi (2,627.58 km) |
| Ronda to Sozopol | 1,781.84 mi (2,867.60 km) |
| Ronda to Sredets | 1,756.19 mi (2,826.32 km) |
| Ronda to Stamboliyski | 1,619.25 mi (2,605.94 km) |
| Ronda to Stara Zagora | 1,677.43 mi (2,699.56 km) |
| Ronda to Svilengrad | 1,703.79 mi (2,741.99 km) |
| Ronda to Svishtov | 1,668.92 mi (2,685.87 km) |
| Ronda to Targovishte | 1,728.28 mi (2,781.40 km) |
| Ronda to Teteven | 1,609.86 mi (2,590.82 km) |
| Ronda to Troyan | 1,632.33 mi (2,626.99 km) |
| Ronda to Tryavna | 1,671.78 mi (2,690.46 km) |
| Ronda to Tutrakan | 1,734.84 mi (2,791.95 km) |
| Ronda to Varna | 1,795.11 mi (2,888.96 km) |
