| Leiderdorp to Montemor-o-Novo | 1,116.52 mi (1,796.86 km) |
| Leiderdorp to Montemor-o-Velho | 1,039.35 mi (1,672.67 km) |
| Leiderdorp to Montijo | 1,132.79 mi (1,823.05 km) |
| Leiderdorp to Mortagua | 1,011.06 mi (1,627.15 km) |
| Leiderdorp to Moura | 1,128.54 mi (1,816.21 km) |
| Leiderdorp to Murtosa | 1,005.17 mi (1,617.66 km) |
| Leiderdorp to Nazare | 1,083.30 mi (1,743.40 km) |
| Leiderdorp to Nelas | 995.45 mi (1,602.03 km) |
| Leiderdorp to Obidos | 1,100.04 mi (1,770.34 km) |
| Leiderdorp to Odemira | 1,192.07 mi (1,918.45 km) |
| Leiderdorp to Odivelas | 1,134.12 mi (1,825.18 km) |
| Leiderdorp to Oeiras | 1,144.26 mi (1,841.50 km) |
| Leiderdorp to Olhao | 1,206.57 mi (1,941.79 km) |
| Leiderdorp to Oliveira de Azemeis | 994.44 mi (1,600.39 km) |
| Leiderdorp to Oliveira de Frades | 993.17 mi (1,598.35 km) |
