| Great Neck to Montalegre | 3,334.66 mi (5,366.62 km) |
| Great Neck to Montemor-o-Novo | 3,400.95 mi (5,473.29 km) |
| Great Neck to Montemor-o-Velho | 3,335.80 mi (5,368.45 km) |
| Great Neck to Montijo | 3,366.43 mi (5,417.74 km) |
| Great Neck to Mortagua | 3,350.38 mi (5,391.91 km) |
| Great Neck to Moura | 3,453.63 mi (5,558.08 km) |
| Great Neck to Murtosa | 3,322.98 mi (5,347.81 km) |
| Great Neck to Nazare | 3,332.63 mi (5,363.34 km) |
| Great Neck to Nelas | 3,366.64 mi (5,418.08 km) |
| Great Neck to Obidos | 3,334.85 mi (5,366.92 km) |
| Great Neck to Odemira | 3,411.41 mi (5,490.13 km) |
| Great Neck to Odivelas | 3,349.65 mi (5,390.73 km) |
| Great Neck to Oeiras | 3,345.93 mi (5,384.75 km) |
| Great Neck to Olhao | 3,467.30 mi (5,580.09 km) |
| Great Neck to Oliveira de Azemeis | 3,327.77 mi (5,355.53 km) |
