| Merignac to Montemor-o-Novo | 578.49 mi (930.99 km) |
| Merignac to Montemor-o-Velho | 521.02 mi (838.50 km) |
| Merignac to Montijo | 601.01 mi (967.23 km) |
| Merignac to Mortagua | 491.03 mi (790.24 km) |
| Merignac to Moura | 581.56 mi (935.93 km) |
| Merignac to Murtosa | 494.18 mi (795.31 km) |
| Merignac to Nazare | 562.29 mi (904.92 km) |
| Merignac to Nelas | 472.08 mi (759.74 km) |
| Merignac to Obidos | 577.29 mi (929.05 km) |
| Merignac to Odemira | 650.29 mi (1,046.54 km) |
| Merignac to Odivelas | 605.88 mi (975.07 km) |
| Merignac to Oeiras | 616.33 mi (991.88 km) |
| Merignac to Olhao | 657.07 mi (1,057.45 km) |
| Merignac to Oliveira de Azemeis | 483.13 mi (777.52 km) |
| Merignac to Oliveira de Frades | 476.44 mi (766.75 km) |
