| Lugo to Smolyan | 1,640.92 mi (2,640.81 km) |
| Lugo to Sofia | 1,555.28 mi (2,502.97 km) |
| Lugo to Sopot | 1,626.61 mi (2,617.77 km) |
| Lugo to Sozopol | 1,776.66 mi (2,859.26 km) |
| Lugo to Sredets | 1,752.91 mi (2,821.04 km) |
| Lugo to Stamboliyski | 1,623.57 mi (2,612.88 km) |
| Lugo to Stara Zagora | 1,674.57 mi (2,694.96 km) |
| Lugo to Svilengrad | 1,712.78 mi (2,756.45 km) |
| Lugo to Svishtov | 1,643.53 mi (2,645.01 km) |
| Lugo to Targovishte | 1,709.04 mi (2,750.43 km) |
| Lugo to Teteven | 1,598.89 mi (2,573.17 km) |
| Lugo to Troyan | 1,621.68 mi (2,609.84 km) |
| Lugo to Tryavna | 1,660.75 mi (2,672.73 km) |
| Lugo to Tutrakan | 1,700.62 mi (2,736.88 km) |
| Lugo to Varna | 1,775.25 mi (2,856.98 km) |
