| Loures to Smolyan | 1,785.58 mi (2,873.62 km) |
| Loures to Sofia | 1,710.60 mi (2,752.94 km) |
| Loures to Sopot | 1,782.81 mi (2,869.16 km) |
| Loures to Sozopol | 1,933.77 mi (3,112.10 km) |
| Loures to Sredets | 1,908.77 mi (3,071.87 km) |
| Loures to Stamboliyski | 1,773.97 mi (2,854.94 km) |
| Loures to Stara Zagora | 1,829.47 mi (2,944.24 km) |
| Loures to Svilengrad | 1,861.45 mi (2,995.71 km) |
| Loures to Svishtov | 1,810.42 mi (2,913.58 km) |
| Loures to Targovishte | 1,873.23 mi (3,014.67 km) |
| Loures to Teteven | 1,757.48 mi (2,828.40 km) |
| Loures to Troyan | 1,780.34 mi (2,865.17 km) |
| Loures to Tryavna | 1,820.00 mi (2,929.02 km) |
| Loures to Tutrakan | 1,872.78 mi (3,013.95 km) |
| Loures to Varna | 1,940.37 mi (3,122.72 km) |
