| Orsay to Montemor-o-Novo | 865.67 mi (1,393.16 km) |
| Orsay to Montemor-o-Velho | 795.39 mi (1,280.05 km) |
| Orsay to Montijo | 884.45 mi (1,423.39 km) |
| Orsay to Mortagua | 766.21 mi (1,233.10 km) |
| Orsay to Moura | 874.12 mi (1,406.76 km) |
| Orsay to Murtosa | 763.48 mi (1,228.70 km) |
| Orsay to Nazare | 838.73 mi (1,349.81 km) |
| Orsay to Nelas | 749.26 mi (1,205.82 km) |
| Orsay to Obidos | 854.94 mi (1,375.90 km) |
| Orsay to Odemira | 939.98 mi (1,512.75 km) |
| Orsay to Odivelas | 887.16 mi (1,427.74 km) |
| Orsay to Oeiras | 897.47 mi (1,444.34 km) |
| Orsay to Olhao | 951.22 mi (1,530.85 km) |
| Orsay to Oliveira de Azemeis | 752.50 mi (1,211.03 km) |
| Orsay to Oliveira de Frades | 749.30 mi (1,205.88 km) |
