| Holt to Montalegre | 3,781.31 mi (6,085.44 km) |
| Holt to Montemor-o-Novo | 3,870.11 mi (6,228.34 km) |
| Holt to Montemor-o-Velho | 3,796.24 mi (6,109.46 km) |
| Holt to Montijo | 3,837.13 mi (6,175.26 km) |
| Holt to Mortagua | 3,807.86 mi (6,128.16 km) |
| Holt to Moura | 3,924.04 mi (6,315.14 km) |
| Holt to Murtosa | 3,779.42 mi (6,082.40 km) |
| Holt to Nazare | 3,797.82 mi (6,112.00 km) |
| Holt to Nelas | 3,822.57 mi (6,151.84 km) |
| Holt to Obidos | 3,801.86 mi (6,118.50 km) |
| Holt to Odemira | 3,888.26 mi (6,257.55 km) |
| Holt to Odivelas | 3,820.38 mi (6,148.31 km) |
| Holt to Oeiras | 3,817.69 mi (6,143.98 km) |
| Holt to Olhao | 3,945.45 mi (6,349.59 km) |
| Holt to Oliveira de Azemeis | 3,783.08 mi (6,088.29 km) |
