| New Orleans to Montalegre | 4,492.30 mi (7,229.65 km) |
| New Orleans to Montemor-o-Novo | 4,544.47 mi (7,313.61 km) |
| New Orleans to Montemor-o-Velho | 4,485.76 mi (7,219.14 km) |
| New Orleans to Montijo | 4,509.03 mi (7,256.57 km) |
| New Orleans to Mortagua | 4,502.07 mi (7,245.38 km) |
| New Orleans to Moura | 4,595.83 mi (7,396.27 km) |
| New Orleans to Murtosa | 4,475.44 mi (7,202.53 km) |
| New Orleans to Nazare | 4,479.46 mi (7,209.00 km) |
| New Orleans to Nelas | 4,519.16 mi (7,272.88 km) |
| New Orleans to Obidos | 4,480.40 mi (7,210.50 km) |
| New Orleans to Odemira | 4,548.69 mi (7,320.41 km) |
| New Orleans to Odivelas | 4,492.34 mi (7,229.73 km) |
| New Orleans to Oeiras | 4,487.86 mi (7,222.51 km) |
| New Orleans to Olhao | 4,603.01 mi (7,407.84 km) |
| New Orleans to Oliveira de Azemeis | 4,480.87 mi (7,211.27 km) |
