| Dun Dealgan to Montemor-o-Novo | 1,064.63 mi (1,713.35 km) |
| Dun Dealgan to Montemor-o-Velho | 962.27 mi (1,548.62 km) |
| Dun Dealgan to Montijo | 1,065.40 mi (1,714.59 km) |
| Dun Dealgan to Mortagua | 941.82 mi (1,515.72 km) |
| Dun Dealgan to Moura | 1,098.02 mi (1,767.09 km) |
| Dun Dealgan to Murtosa | 923.05 mi (1,485.50 km) |
| Dun Dealgan to Nazare | 1,003.31 mi (1,614.67 km) |
| Dun Dealgan to Nelas | 934.64 mi (1,504.15 km) |
| Dun Dealgan to Obidos | 1,020.45 mi (1,642.26 km) |
| Dun Dealgan to Odemira | 1,139.83 mi (1,834.37 km) |
| Dun Dealgan to Odivelas | 1,059.58 mi (1,705.23 km) |
| Dun Dealgan to Oeiras | 1,067.74 mi (1,718.36 km) |
| Dun Dealgan to Olhao | 1,175.41 mi (1,891.64 km) |
| Dun Dealgan to Oliveira de Azemeis | 914.92 mi (1,472.42 km) |
| Dun Dealgan to Oliveira de Frades | 922.10 mi (1,483.97 km) |
