| Acala del Rio to Smolyan | 1,648.82 mi (2,653.53 km) |
| Acala del Rio to Sofia | 1,580.52 mi (2,543.60 km) |
| Acala del Rio to Sopot | 1,652.42 mi (2,659.32 km) |
| Acala del Rio to Sozopol | 1,802.40 mi (2,900.68 km) |
| Acala del Rio to Sredets | 1,776.92 mi (2,859.68 km) |
| Acala del Rio to Stamboliyski | 1,640.44 mi (2,640.04 km) |
| Acala del Rio to Stara Zagora | 1,697.85 mi (2,732.43 km) |
| Acala del Rio to Svilengrad | 1,726.08 mi (2,777.86 km) |
| Acala del Rio to Svishtov | 1,685.95 mi (2,713.27 km) |
| Acala del Rio to Targovishte | 1,746.51 mi (2,810.74 km) |
| Acala del Rio to Teteven | 1,628.73 mi (2,621.19 km) |
| Acala del Rio to Troyan | 1,651.37 mi (2,657.62 km) |
| Acala del Rio to Tryavna | 1,690.96 mi (2,721.33 km) |
| Acala del Rio to Tutrakan | 1,750.86 mi (2,817.74 km) |
| Acala del Rio to Varna | 1,813.55 mi (2,918.63 km) |
