| Mount Airy to Montalegre | 3,799.97 mi (6,115.47 km) |
| Mount Airy to Montemor-o-Novo | 3,858.71 mi (6,209.99 km) |
| Mount Airy to Montemor-o-Velho | 3,796.93 mi (6,110.57 km) |
| Mount Airy to Montijo | 3,823.68 mi (6,153.61 km) |
| Mount Airy to Mortagua | 3,812.44 mi (6,135.54 km) |
| Mount Airy to Moura | 3,910.74 mi (6,293.72 km) |
| Mount Airy to Murtosa | 3,785.45 mi (6,092.09 km) |
| Mount Airy to Nazare | 3,792.09 mi (6,102.77 km) |
| Mount Airy to Nelas | 3,829.16 mi (6,162.43 km) |
| Mount Airy to Obidos | 3,793.63 mi (6,105.26 km) |
| Mount Airy to Odemira | 3,865.93 mi (6,221.62 km) |
| Mount Airy to Odivelas | 3,806.94 mi (6,126.67 km) |
| Mount Airy to Oeiras | 3,802.81 mi (6,120.03 km) |
| Mount Airy to Olhao | 3,921.07 mi (6,310.35 km) |
| Mount Airy to Oliveira de Azemeis | 3,790.59 mi (6,100.36 km) |
