| Erandio to Smolyan | 1,409.48 mi (2,268.34 km) |
| Erandio to Sofia | 1,324.24 mi (2,131.16 km) |
| Erandio to Sopot | 1,395.69 mi (2,246.15 km) |
| Erandio to Sozopol | 1,545.93 mi (2,487.94 km) |
| Erandio to Sredets | 1,522.07 mi (2,449.53 km) |
| Erandio to Stamboliyski | 1,392.31 mi (2,240.71 km) |
| Erandio to Stara Zagora | 1,443.60 mi (2,323.25 km) |
| Erandio to Svilengrad | 1,481.49 mi (2,384.23 km) |
| Erandio to Svishtov | 1,413.67 mi (2,275.08 km) |
| Erandio to Targovishte | 1,478.93 mi (2,380.11 km) |
| Erandio to Teteven | 1,368.13 mi (2,201.80 km) |
| Erandio to Troyan | 1,390.95 mi (2,238.51 km) |
| Erandio to Tryavna | 1,430.11 mi (2,301.54 km) |
| Erandio to Tutrakan | 1,471.56 mi (2,368.25 km) |
| Erandio to Varna | 1,545.32 mi (2,486.96 km) |
