| Triangle to Montalegre | 3,574.07 mi (5,751.90 km) |
| Triangle to Montemor-o-Novo | 3,635.81 mi (5,851.27 km) |
| Triangle to Montemor-o-Velho | 3,572.67 mi (5,749.65 km) |
| Triangle to Montijo | 3,600.98 mi (5,795.22 km) |
| Triangle to Mortagua | 3,587.81 mi (5,774.02 km) |
| Triangle to Moura | 3,688.12 mi (5,935.45 km) |
| Triangle to Murtosa | 3,560.65 mi (5,730.31 km) |
| Triangle to Nazare | 3,568.49 mi (5,742.93 km) |
| Triangle to Nelas | 3,604.35 mi (5,800.64 km) |
| Triangle to Obidos | 3,570.31 mi (5,745.86 km) |
| Triangle to Odemira | 3,644.36 mi (5,865.04 km) |
| Triangle to Odivelas | 3,584.22 mi (5,768.25 km) |
| Triangle to Oeiras | 3,580.26 mi (5,761.87 km) |
| Triangle to Olhao | 3,699.83 mi (5,954.30 km) |
| Triangle to Oliveira de Azemeis | 3,565.66 mi (5,738.37 km) |
