| Sumner to Montalegre | 5,094.94 mi (8,199.52 km) |
| Sumner to Montemor-o-Novo | 5,248.71 mi (8,446.98 km) |
| Sumner to Montemor-o-Velho | 5,152.41 mi (8,292.01 km) |
| Sumner to Montijo | 5,223.29 mi (8,406.07 km) |
| Sumner to Mortagua | 5,153.62 mi (8,293.95 km) |
| Sumner to Moura | 5,302.67 mi (8,533.82 km) |
| Sumner to Murtosa | 5,124.24 mi (8,246.67 km) |
| Sumner to Nazare | 5,169.15 mi (8,318.94 km) |
| Sumner to Nelas | 5,162.15 mi (8,307.68 km) |
| Sumner to Obidos | 5,178.75 mi (8,334.38 km) |
| Sumner to Odemira | 5,290.87 mi (8,514.84 km) |
| Sumner to Odivelas | 5,207.92 mi (8,381.33 km) |
| Sumner to Oeiras | 5,208.79 mi (8,382.73 km) |
| Sumner to Olhao | 5,348.29 mi (8,607.24 km) |
| Sumner to Oliveira de Azemeis | 5,123.97 mi (8,246.24 km) |
