| Sieradz to Lagoa | 2,334.58 mi (3,757.14 km) |
| Sieradz to Lagos | 1,668.45 mi (2,685.12 km) |
| Sieradz to Lamego | 1,447.86 mi (2,330.11 km) |
| Sieradz to Leiria | 1,547.79 mi (2,490.93 km) |
| Sieradz to Lisbon | 1,609.00 mi (2,589.44 km) |
| Sieradz to Loule | 1,640.29 mi (2,639.78 km) |
| Sieradz to Loures | 1,604.61 mi (2,582.38 km) |
| Sieradz to Lourinha | 1,591.40 mi (2,561.10 km) |
| Sieradz to Lousa | 1,509.24 mi (2,428.89 km) |
| Sieradz to Lousada | 1,456.69 mi (2,344.32 km) |
| Sieradz to Macedo de Cavaleiros | 1,394.56 mi (2,244.32 km) |
| Sieradz to Mafamude | 1,479.43 mi (2,380.91 km) |
| Sieradz to Mafra | 1,606.17 mi (2,584.87 km) |
| Sieradz to Maia | 1,474.89 mi (2,373.61 km) |
| Sieradz to Mangualde | 1,467.75 mi (2,362.11 km) |
