| Sleaford to Lagoa | 1,162.31 mi (1,870.56 km) |
| Sleaford to Lagoa | 1,598.10 mi (2,571.90 km) |
| Sleaford to Lagos | 1,167.94 mi (1,879.61 km) |
| Sleaford to Lamego | 891.47 mi (1,434.68 km) |
| Sleaford to Leiria | 997.12 mi (1,604.71 km) |
| Sleaford to Lisbon | 1,070.02 mi (1,722.02 km) |
| Sleaford to Loule | 1,154.18 mi (1,857.47 km) |
| Sleaford to Loures | 1,063.32 mi (1,711.24 km) |
| Sleaford to Lourinha | 1,039.96 mi (1,673.65 km) |
| Sleaford to Lousa | 963.47 mi (1,550.56 km) |
| Sleaford to Lousada | 886.62 mi (1,426.88 km) |
| Sleaford to Macedo de Cavaleiros | 848.18 mi (1,365.02 km) |
| Sleaford to Mafamude | 905.53 mi (1,457.31 km) |
| Sleaford to Mafra | 1,059.44 mi (1,705.00 km) |
| Sleaford to Maia | 898.24 mi (1,445.58 km) |
