| Neu Isenburg to Montemor-o-Novo | 1,143.49 mi (1,840.27 km) |
| Neu Isenburg to Montemor-o-Velho | 1,083.94 mi (1,744.43 km) |
| Neu Isenburg to Montijo | 1,166.19 mi (1,876.80 km) |
| Neu Isenburg to Mortagua | 1,054.13 mi (1,696.45 km) |
| Neu Isenburg to Moura | 1,144.25 mi (1,841.50 km) |
| Neu Isenburg to Murtosa | 1,054.80 mi (1,697.54 km) |
| Neu Isenburg to Nazare | 1,126.06 mi (1,812.21 km) |
| Neu Isenburg to Nelas | 1,035.78 mi (1,666.93 km) |
| Neu Isenburg to Obidos | 1,141.45 mi (1,836.98 km) |
| Neu Isenburg to Odemira | 1,214.44 mi (1,954.45 km) |
| Neu Isenburg to Odivelas | 1,170.85 mi (1,884.31 km) |
| Neu Isenburg to Oeiras | 1,181.29 mi (1,901.11 km) |
| Neu Isenburg to Olhao | 1,217.74 mi (1,959.77 km) |
| Neu Isenburg to Oliveira de Azemeis | 1,043.72 mi (1,679.70 km) |
| Neu Isenburg to Oliveira de Frades | 1,038.56 mi (1,671.40 km) |
