| Spanish Lake to Montalegre | 4,171.16 mi (6,712.84 km) |
| Spanish Lake to Montemor-o-Novo | 4,254.14 mi (6,846.38 km) |
| Spanish Lake to Montemor-o-Velho | 4,182.72 mi (6,731.44 km) |
| Spanish Lake to Montijo | 4,220.65 mi (6,792.47 km) |
| Spanish Lake to Mortagua | 4,195.14 mi (6,751.43 km) |
| Spanish Lake to Moura | 4,307.75 mi (6,932.65 km) |
| Spanish Lake to Murtosa | 4,166.94 mi (6,706.04 km) |
| Spanish Lake to Nazare | 4,182.96 mi (6,731.83 km) |
| Spanish Lake to Nelas | 4,210.27 mi (6,775.77 km) |
| Spanish Lake to Obidos | 4,186.47 mi (6,737.48 km) |
| Spanish Lake to Odemira | 4,269.80 mi (6,871.59 km) |
| Spanish Lake to Odivelas | 4,203.87 mi (6,765.47 km) |
| Spanish Lake to Oeiras | 4,200.85 mi (6,760.61 km) |
| Spanish Lake to Olhao | 4,326.61 mi (6,963.01 km) |
| Spanish Lake to Oliveira de Azemeis | 4,170.89 mi (6,712.40 km) |
