| Clemmons to Montalegre | 3,805.21 mi (6,123.89 km) |
| Clemmons to Montemor-o-Novo | 3,861.65 mi (6,214.73 km) |
| Clemmons to Montemor-o-Velho | 3,800.83 mi (6,116.85 km) |
| Clemmons to Montijo | 3,826.50 mi (6,158.16 km) |
| Clemmons to Mortagua | 3,816.62 mi (6,142.26 km) |
| Clemmons to Moura | 3,913.50 mi (6,298.17 km) |
| Clemmons to Murtosa | 3,789.76 mi (6,099.02 km) |
| Clemmons to Nazare | 3,795.51 mi (6,108.29 km) |
| Clemmons to Nelas | 3,833.47 mi (6,169.38 km) |
| Clemmons to Obidos | 3,796.87 mi (6,110.47 km) |
| Clemmons to Odemira | 3,868.06 mi (6,225.03 km) |
| Clemmons to Odivelas | 3,809.77 mi (6,131.24 km) |
| Clemmons to Oeiras | 3,805.55 mi (6,124.43 km) |
| Clemmons to Olhao | 3,922.99 mi (6,313.45 km) |
| Clemmons to Oliveira de Azemeis | 3,795.01 mi (6,107.47 km) |
