| Nideggen to Montemor-o-Novo | 1,098.10 mi (1,767.22 km) |
| Nideggen to Montemor-o-Velho | 1,030.81 mi (1,658.93 km) |
| Nideggen to Montijo | 1,118.18 mi (1,799.54 km) |
| Nideggen to Mortagua | 1,001.45 mi (1,611.68 km) |
| Nideggen to Moura | 1,103.73 mi (1,776.28 km) |
| Nideggen to Murtosa | 999.43 mi (1,608.42 km) |
| Nideggen to Nazare | 1,073.92 mi (1,728.31 km) |
| Nideggen to Nelas | 984.13 mi (1,583.80 km) |
| Nideggen to Obidos | 1,089.95 mi (1,754.11 km) |
| Nideggen to Odemira | 1,171.38 mi (1,885.15 km) |
| Nideggen to Odivelas | 1,121.47 mi (1,804.83 km) |
| Nideggen to Oeiras | 1,131.83 mi (1,821.51 km) |
| Nideggen to Olhao | 1,179.57 mi (1,898.34 km) |
| Nideggen to Oliveira de Azemeis | 988.42 mi (1,590.71 km) |
| Nideggen to Oliveira de Frades | 984.83 mi (1,584.92 km) |
