| Three Lakes to Montalegre | 4,194.01 mi (6,749.60 km) |
| Three Lakes to Montemor-o-Novo | 4,210.68 mi (6,776.43 km) |
| Three Lakes to Montemor-o-Velho | 4,167.30 mi (6,706.61 km) |
| Three Lakes to Montijo | 4,174.03 mi (6,717.45 km) |
| Three Lakes to Mortagua | 4,187.50 mi (6,739.12 km) |
| Three Lakes to Moura | 4,258.37 mi (6,853.19 km) |
| Three Lakes to Murtosa | 4,163.30 mi (6,700.19 km) |
| Three Lakes to Nazare | 4,153.99 mi (6,685.19 km) |
| Three Lakes to Nelas | 4,206.33 mi (6,769.44 km) |
| Three Lakes to Obidos | 4,152.10 mi (6,682.15 km) |
| Three Lakes to Odemira | 4,202.65 mi (6,763.51 km) |
| Three Lakes to Odivelas | 4,157.87 mi (6,691.44 km) |
| Three Lakes to Oeiras | 4,151.93 mi (6,681.88 km) |
| Three Lakes to Olhao | 4,253.07 mi (6,844.65 km) |
| Three Lakes to Oliveira de Azemeis | 4,170.25 mi (6,711.36 km) |
