| Ermont to Montemor-o-Novo | 883.32 mi (1,421.56 km) |
| Ermont to Montemor-o-Velho | 811.92 mi (1,306.66 km) |
| Ermont to Montijo | 901.71 mi (1,451.16 km) |
| Ermont to Mortagua | 782.86 mi (1,259.89 km) |
| Ermont to Moura | 892.39 mi (1,436.17 km) |
| Ermont to Murtosa | 779.65 mi (1,254.73 km) |
| Ermont to Nazare | 855.38 mi (1,376.60 km) |
| Ermont to Nelas | 766.10 mi (1,232.93 km) |
| Ermont to Obidos | 871.68 mi (1,402.84 km) |
| Ermont to Odemira | 957.86 mi (1,541.53 km) |
| Ermont to Odivelas | 904.20 mi (1,455.16 km) |
| Ermont to Oeiras | 914.49 mi (1,471.73 km) |
| Ermont to Olhao | 969.69 mi (1,560.56 km) |
| Ermont to Oliveira de Azemeis | 768.70 mi (1,237.10 km) |
| Ermont to Oliveira de Frades | 765.79 mi (1,232.41 km) |
