| Laguna de Duero to Smolyan | 1,512.84 mi (2,434.68 km) |
| Laguna de Duero to Sofia | 1,432.35 mi (2,305.15 km) |
| Laguna de Duero to Sopot | 1,504.38 mi (2,421.06 km) |
| Laguna de Duero to Sozopol | 1,655.33 mi (2,664.00 km) |
| Laguna de Duero to Sredets | 1,630.86 mi (2,624.61 km) |
| Laguna de Duero to Stamboliyski | 1,498.31 mi (2,411.29 km) |
| Laguna de Duero to Stara Zagora | 1,551.79 mi (2,497.37 km) |
| Laguna de Duero to Svilengrad | 1,586.91 mi (2,553.88 km) |
| Laguna de Duero to Svishtov | 1,527.22 mi (2,457.82 km) |
| Laguna de Duero to Targovishte | 1,591.38 mi (2,561.08 km) |
| Laguna de Duero to Teteven | 1,477.85 mi (2,378.37 km) |
| Laguna de Duero to Troyan | 1,500.74 mi (2,415.21 km) |
| Laguna de Duero to Tryavna | 1,540.26 mi (2,478.80 km) |
| Laguna de Duero to Tutrakan | 1,587.51 mi (2,554.84 km) |
| Laguna de Duero to Varna | 1,658.28 mi (2,668.75 km) |
