| Montmelo to Montalegre | 518.15 mi (833.89 km) |
| Montmelo to Montemor-o-Novo | 587.96 mi (946.24 km) |
| Montmelo to Montemor-o-Velho | 578.91 mi (931.66 km) |
| Montmelo to Montijo | 621.08 mi (999.54 km) |
| Montmelo to Mortagua | 551.81 mi (888.06 km) |
| Montmelo to Moura | 565.84 mi (910.62 km) |
| Montmelo to Murtosa | 568.73 mi (915.28 km) |
| Montmelo to Nazare | 608.56 mi (979.38 km) |
| Montmelo to Nelas | 530.93 mi (854.45 km) |
| Montmelo to Obidos | 618.13 mi (994.78 km) |
| Montmelo to Odemira | 640.68 mi (1,031.08 km) |
| Montmelo to Odivelas | 632.36 mi (1,017.69 km) |
| Montmelo to Oeiras | 641.93 mi (1,033.09 km) |
| Montmelo to Olhao | 623.16 mi (1,002.88 km) |
| Montmelo to Oliveira de Azemeis | 559.40 mi (900.27 km) |
