| Montreuil to Montemor-o-Novo | 881.81 mi (1,419.13 km) |
| Montreuil to Montemor-o-Velho | 811.60 mi (1,306.14 km) |
| Montreuil to Montijo | 900.64 mi (1,449.44 km) |
| Montreuil to Mortagua | 782.42 mi (1,259.19 km) |
| Montreuil to Moura | 890.14 mi (1,432.54 km) |
| Montreuil to Murtosa | 779.68 mi (1,254.77 km) |
| Montreuil to Nazare | 854.94 mi (1,375.90 km) |
| Montreuil to Nelas | 765.47 mi (1,231.90 km) |
| Montreuil to Obidos | 871.15 mi (1,401.99 km) |
| Montreuil to Odemira | 956.08 mi (1,538.66 km) |
| Montreuil to Odivelas | 903.36 mi (1,453.81 km) |
| Montreuil to Oeiras | 913.67 mi (1,470.42 km) |
| Montreuil to Olhao | 967.19 mi (1,556.54 km) |
| Montreuil to Oliveira de Azemeis | 768.70 mi (1,237.10 km) |
| Montreuil to Oliveira de Frades | 765.51 mi (1,231.97 km) |
