| Howard to Montalegre | 3,877.73 mi (6,240.61 km) |
| Howard to Montemor-o-Novo | 3,978.48 mi (6,402.75 km) |
| Howard to Montemor-o-Velho | 3,900.09 mi (6,276.59 km) |
| Howard to Montijo | 3,946.54 mi (6,351.33 km) |
| Howard to Mortagua | 3,910.02 mi (6,292.57 km) |
| Howard to Moura | 4,032.88 mi (6,490.29 km) |
| Howard to Murtosa | 3,881.16 mi (6,246.13 km) |
| Howard to Nazare | 3,904.31 mi (6,283.37 km) |
| Howard to Nelas | 3,923.81 mi (6,314.76 km) |
| Howard to Obidos | 3,909.35 mi (6,291.49 km) |
| Howard to Odemira | 4,000.96 mi (6,438.92 km) |
| Howard to Odivelas | 3,929.88 mi (6,324.54 km) |
| Howard to Oeiras | 3,927.79 mi (6,321.17 km) |
| Howard to Olhao | 4,058.66 mi (6,531.78 km) |
| Howard to Oliveira de Azemeis | 3,884.18 mi (6,250.98 km) |
