| Palos de la Frontera to Smolyan | 1,703.50 mi (2,741.52 km) |
| Palos de la Frontera to Sofia | 1,635.20 mi (2,631.61 km) |
| Palos de la Frontera to Sopot | 1,707.11 mi (2,747.33 km) |
| Palos de la Frontera to Sozopol | 1,857.10 mi (2,988.71 km) |
| Palos de la Frontera to Sredets | 1,831.62 mi (2,947.70 km) |
| Palos de la Frontera to Stamboliyski | 1,695.14 mi (2,728.06 km) |
| Palos de la Frontera to Stara Zagora | 1,752.55 mi (2,820.45 km) |
| Palos de la Frontera to Svilengrad | 1,780.77 mi (2,865.87 km) |
| Palos de la Frontera to Svishtov | 1,740.56 mi (2,801.16 km) |
| Palos de la Frontera to Targovishte | 1,801.17 mi (2,898.70 km) |
| Palos de la Frontera to Teteven | 1,683.41 mi (2,709.18 km) |
| Palos de la Frontera to Troyan | 1,706.05 mi (2,745.62 km) |
| Palos de la Frontera to Tryavna | 1,745.64 mi (2,809.33 km) |
| Palos de la Frontera to Tutrakan | 1,805.42 mi (2,905.54 km) |
| Palos de la Frontera to Varna | 1,868.21 mi (3,006.60 km) |
