| Southgate to Montalegre | 767.83 mi (1,235.70 km) |
| Southgate to Montemor-o-Novo | 978.34 mi (1,574.48 km) |
| Southgate to Montemor-o-Velho | 891.20 mi (1,434.25 km) |
| Southgate to Montijo | 989.84 mi (1,592.99 km) |
| Southgate to Mortagua | 864.70 mi (1,391.60 km) |
| Southgate to Moura | 997.95 mi (1,606.05 km) |
| Southgate to Murtosa | 854.59 mi (1,375.33 km) |
| Southgate to Nazare | 935.26 mi (1,505.15 km) |
| Southgate to Nelas | 851.40 mi (1,370.20 km) |
| Southgate to Obidos | 952.49 mi (1,532.89 km) |
| Southgate to Odemira | 1,055.29 mi (1,698.33 km) |
| Southgate to Odivelas | 988.89 mi (1,591.46 km) |
| Southgate to Oeiras | 998.60 mi (1,607.09 km) |
| Southgate to Olhao | 1,077.31 mi (1,733.77 km) |
| Southgate to Oliveira de Azemeis | 844.39 mi (1,358.91 km) |
