| Crystal to Montalegre | 4,088.11 mi (6,579.17 km) |
| Crystal to Montemor-o-Novo | 4,197.30 mi (6,754.91 km) |
| Crystal to Montemor-o-Velho | 4,115.85 mi (6,623.83 km) |
| Crystal to Montijo | 4,166.15 mi (6,704.77 km) |
| Crystal to Mortagua | 4,124.54 mi (6,637.81 km) |
| Crystal to Moura | 4,251.91 mi (6,842.79 km) |
| Crystal to Murtosa | 4,095.44 mi (6,590.98 km) |
| Crystal to Nazare | 4,121.95 mi (6,633.63 km) |
| Crystal to Nelas | 4,137.62 mi (6,658.86 km) |
| Crystal to Obidos | 4,127.69 mi (6,642.88 km) |
| Crystal to Odemira | 4,222.76 mi (6,795.88 km) |
| Crystal to Odivelas | 4,149.60 mi (6,678.14 km) |
| Crystal to Oeiras | 4,147.93 mi (6,675.46 km) |
| Crystal to Olhao | 4,280.69 mi (6,889.11 km) |
| Crystal to Oliveira de Azemeis | 4,097.99 mi (6,595.07 km) |
