| Boom to Montemor-o-Novo | 1,054.04 mi (1,696.31 km) |
| Boom to Montemor-o-Velho | 980.15 mi (1,577.39 km) |
| Boom to Montijo | 1,071.61 mi (1,724.59 km) |
| Boom to Mortagua | 951.42 mi (1,531.16 km) |
| Boom to Moura | 1,064.05 mi (1,712.42 km) |
| Boom to Murtosa | 946.92 mi (1,523.93 km) |
| Boom to Nazare | 1,023.87 mi (1,647.76 km) |
| Boom to Nelas | 935.17 mi (1,505.01 km) |
| Boom to Obidos | 1,040.39 mi (1,674.34 km) |
| Boom to Odemira | 1,128.96 mi (1,816.89 km) |
| Boom to Odivelas | 1,073.61 mi (1,727.82 km) |
| Boom to Oeiras | 1,083.85 mi (1,744.29 km) |
| Boom to Olhao | 1,141.53 mi (1,837.12 km) |
| Boom to Oliveira de Azemeis | 936.07 mi (1,506.46 km) |
| Boom to Oliveira de Frades | 933.94 mi (1,503.03 km) |
