| Mairena del Alcor to Smolyan | 1,640.24 mi (2,639.71 km) |
| Mairena del Alcor to Sofia | 1,572.65 mi (2,530.94 km) |
| Mairena del Alcor to Sopot | 1,644.49 mi (2,646.55 km) |
| Mairena del Alcor to Sozopol | 1,794.31 mi (2,887.66 km) |
| Mairena del Alcor to Sredets | 1,768.79 mi (2,846.59 km) |
| Mairena del Alcor to Stamboliyski | 1,632.19 mi (2,626.76 km) |
| Mairena del Alcor to Stara Zagora | 1,689.78 mi (2,719.43 km) |
| Mairena del Alcor to Svilengrad | 1,717.61 mi (2,764.23 km) |
| Mairena del Alcor to Svishtov | 1,678.61 mi (2,701.46 km) |
| Mairena del Alcor to Targovishte | 1,738.92 mi (2,798.51 km) |
| Mairena del Alcor to Teteven | 1,620.98 mi (2,608.71 km) |
| Mairena del Alcor to Troyan | 1,643.59 mi (2,645.10 km) |
| Mairena del Alcor to Tryavna | 1,683.15 mi (2,708.77 km) |
| Mairena del Alcor to Tutrakan | 1,743.75 mi (2,806.29 km) |
| Mairena del Alcor to Varna | 1,805.92 mi (2,906.35 km) |
