| Castelnaudary to Montemor-o-Novo | 620.17 mi (998.06 km) |
| Castelnaudary to Montemor-o-Velho | 589.49 mi (948.69 km) |
| Castelnaudary to Montijo | 649.53 mi (1,045.32 km) |
| Castelnaudary to Mortagua | 560.25 mi (901.64 km) |
| Castelnaudary to Moura | 608.30 mi (978.96 km) |
| Castelnaudary to Murtosa | 571.51 mi (919.76 km) |
| Castelnaudary to Nazare | 625.15 mi (1,006.09 km) |
| Castelnaudary to Nelas | 539.52 mi (868.27 km) |
| Castelnaudary to Obidos | 637.38 mi (1,025.76 km) |
| Castelnaudary to Odemira | 682.40 mi (1,098.21 km) |
| Castelnaudary to Odivelas | 658.29 mi (1,059.41 km) |
| Castelnaudary to Oeiras | 668.47 mi (1,075.79 km) |
| Castelnaudary to Olhao | 674.76 mi (1,085.92 km) |
| Castelnaudary to Oliveira de Azemeis | 561.11 mi (903.01 km) |
| Castelnaudary to Oliveira de Frades | 550.10 mi (885.30 km) |
