| Lucan to Smolyan | 1,647.89 mi (2,652.03 km) |
| Lucan to Sofia | 1,544.66 mi (2,485.88 km) |
| Lucan to Sopot | 1,603.22 mi (2,580.14 km) |
| Lucan to Sozopol | 1,731.51 mi (2,786.60 km) |
| Lucan to Sredets | 1,714.19 mi (2,758.73 km) |
| Lucan to Stamboliyski | 1,616.99 mi (2,602.29 km) |
| Lucan to Stara Zagora | 1,648.45 mi (2,652.92 km) |
| Lucan to Svilengrad | 1,699.30 mi (2,734.75 km) |
| Lucan to Svishtov | 1,586.81 mi (2,553.73 km) |
| Lucan to Targovishte | 1,651.64 mi (2,658.06 km) |
| Lucan to Teteven | 1,572.57 mi (2,530.81 km) |
| Lucan to Troyan | 1,591.95 mi (2,562.00 km) |
| Lucan to Tryavna | 1,624.00 mi (2,613.57 km) |
| Lucan to Tutrakan | 1,620.63 mi (2,608.14 km) |
| Lucan to Varna | 1,707.01 mi (2,747.17 km) |
