| Sliven to Lagoa | 2,717.08 mi (4,372.71 km) |
| Sliven to Lagos | 1,881.25 mi (3,027.59 km) |
| Sliven to Lamego | 1,747.54 mi (2,812.40 km) |
| Sliven to Leiria | 1,823.97 mi (2,935.40 km) |
| Sliven to Lisbon | 1,864.64 mi (3,000.85 km) |
| Sliven to Loule | 1,845.82 mi (2,970.56 km) |
| Sliven to Loures | 1,862.96 mi (2,998.15 km) |
| Sliven to Lourinha | 1,860.56 mi (2,994.28 km) |
| Sliven to Lousa | 1,788.49 mi (2,878.29 km) |
| Sliven to Lousada | 1,765.61 mi (2,841.47 km) |
| Sliven to Macedo de Cavaleiros | 1,697.31 mi (2,731.55 km) |
| Sliven to Mafamude | 1,787.17 mi (2,876.17 km) |
| Sliven to Mafra | 1,868.83 mi (3,007.59 km) |
| Sliven to Maia | 1,785.70 mi (2,873.81 km) |
| Sliven to Mangualde | 1,754.28 mi (2,823.24 km) |
