| Portimao to Montalegre | 326.22 mi (525.00 km) |
| Portimao to Montemor-o-Novo | 106.01 mi (170.60 km) |
| Portimao to Montemor-o-Velho | 209.48 mi (337.13 km) |
| Portimao to Montijo | 108.65 mi (174.85 km) |
| Portimao to Mortagua | 228.35 mi (367.49 km) |
| Portimao to Moura | 91.02 mi (146.49 km) |
| Portimao to Murtosa | 248.54 mi (399.99 km) |
| Portimao to Nazare | 172.57 mi (277.73 km) |
| Portimao to Nelas | 236.44 mi (380.51 km) |
| Portimao to Obidos | 157.11 mi (252.84 km) |
| Portimao to Odemira | 31.28 mi (50.34 km) |
| Portimao to Odivelas | 119.46 mi (192.25 km) |
| Portimao to Oeiras | 114.96 mi (185.01 km) |
| Portimao to Olhao | 39.19 mi (63.07 km) |
| Portimao to Oliveira de Azemeis | 255.88 mi (411.80 km) |
