| Mission Viejo to Montalegre | 5,589.34 mi (8,995.17 km) |
| Mission Viejo to Montemor-o-Novo | 5,705.26 mi (9,181.72 km) |
| Mission Viejo to Montemor-o-Velho | 5,621.81 mi (9,047.42 km) |
| Mission Viejo to Montijo | 5,674.59 mi (9,132.37 km) |
| Mission Viejo to Mortagua | 5,629.50 mi (9,059.81 km) |
| Mission Viejo to Moura | 5,759.95 mi (9,269.74 km) |
| Mission Viejo to Murtosa | 5,600.25 mi (9,012.73 km) |
| Mission Viejo to Nazare | 5,629.22 mi (9,059.36 km) |
| Mission Viejo to Nelas | 5,641.97 mi (9,079.87 km) |
| Mission Viejo to Obidos | 5,635.41 mi (9,069.32 km) |
| Mission Viejo to Odemira | 5,732.24 mi (9,225.15 km) |
| Mission Viejo to Odivelas | 5,658.11 mi (9,105.84 km) |
| Mission Viejo to Oeiras | 5,656.67 mi (9,103.53 km) |
| Mission Viejo to Olhao | 5,790.24 mi (9,318.49 km) |
| Mission Viejo to Oliveira de Azemeis | 5,602.39 mi (9,016.17 km) |
