| Witham to Montalegre | 794.94 mi (1,279.33 km) |
| Witham to Montemor-o-Novo | 1,003.69 mi (1,615.29 km) |
| Witham to Montemor-o-Velho | 918.12 mi (1,477.57 km) |
| Witham to Montijo | 1,016.01 mi (1,635.12 km) |
| Witham to Mortagua | 891.27 mi (1,434.36 km) |
| Witham to Moura | 1,022.05 mi (1,644.82 km) |
| Witham to Murtosa | 881.86 mi (1,419.22 km) |
| Witham to Nazare | 962.22 mi (1,548.54 km) |
| Witham to Nelas | 877.56 mi (1,412.29 km) |
| Witham to Obidos | 979.39 mi (1,576.18 km) |
| Witham to Odemira | 1,080.51 mi (1,738.92 km) |
| Witham to Odivelas | 1,015.44 mi (1,634.20 km) |
| Witham to Oeiras | 1,025.24 mi (1,649.97 km) |
| Witham to Olhao | 1,101.30 mi (1,772.37 km) |
| Witham to Oliveira de Azemeis | 871.55 mi (1,402.63 km) |
