| Cosham to Montalegre | 700.23 mi (1,126.91 km) |
| Cosham to Montemor-o-Novo | 911.52 mi (1,466.95 km) |
| Cosham to Montemor-o-Velho | 823.66 mi (1,325.56 km) |
| Cosham to Montijo | 922.59 mi (1,484.77 km) |
| Cosham to Mortagua | 797.30 mi (1,283.13 km) |
| Cosham to Moura | 931.92 mi (1,499.77 km) |
| Cosham to Murtosa | 786.92 mi (1,266.43 km) |
| Cosham to Nazare | 867.69 mi (1,396.42 km) |
| Cosham to Nelas | 784.20 mi (1,262.05 km) |
| Cosham to Obidos | 884.95 mi (1,424.19 km) |
| Cosham to Odemira | 988.53 mi (1,590.89 km) |
| Cosham to Odivelas | 921.48 mi (1,482.97 km) |
| Cosham to Oeiras | 931.15 mi (1,498.55 km) |
| Cosham to Olhao | 1,011.33 mi (1,627.57 km) |
| Cosham to Oliveira de Azemeis | 776.76 mi (1,250.07 km) |
