| Someren to Montemor-o-Novo | 1,108.31 mi (1,783.66 km) |
| Someren to Montemor-o-Velho | 1,036.56 mi (1,668.18 km) |
| Someren to Montijo | 1,126.76 mi (1,813.34 km) |
| Someren to Mortagua | 1,007.61 mi (1,621.59 km) |
| Someren to Moura | 1,116.75 mi (1,797.24 km) |
| Someren to Murtosa | 1,003.88 mi (1,615.59 km) |
| Someren to Nazare | 1,080.12 mi (1,738.29 km) |
| Someren to Nelas | 991.00 mi (1,594.86 km) |
| Someren to Obidos | 1,096.49 mi (1,764.64 km) |
| Someren to Odemira | 1,182.70 mi (1,903.38 km) |
| Someren to Odivelas | 1,129.19 mi (1,817.25 km) |
| Someren to Oeiras | 1,139.47 mi (1,833.80 km) |
| Someren to Olhao | 1,193.68 mi (1,921.04 km) |
| Someren to Oliveira de Azemeis | 992.97 mi (1,598.03 km) |
| Someren to Oliveira de Frades | 990.39 mi (1,593.88 km) |
