| Sliedrecht to Montemor-o-Novo | 1,103.95 mi (1,776.63 km) |
| Sliedrecht to Montemor-o-Velho | 1,028.46 mi (1,655.14 km) |
| Sliedrecht to Montijo | 1,120.91 mi (1,803.93 km) |
| Sliedrecht to Mortagua | 999.94 mi (1,609.24 km) |
| Sliedrecht to Moura | 1,114.87 mi (1,794.20 km) |
| Sliedrecht to Murtosa | 994.74 mi (1,600.88 km) |
| Sliedrecht to Nazare | 1,072.30 mi (1,725.71 km) |
| Sliedrecht to Nelas | 984.00 mi (1,583.60 km) |
| Sliedrecht to Obidos | 1,088.93 mi (1,752.47 km) |
| Sliedrecht to Odemira | 1,179.17 mi (1,897.69 km) |
| Sliedrecht to Odivelas | 1,122.59 mi (1,806.63 km) |
| Sliedrecht to Oeiras | 1,132.78 mi (1,823.03 km) |
| Sliedrecht to Olhao | 1,192.60 mi (1,919.30 km) |
| Sliedrecht to Oliveira de Azemeis | 983.95 mi (1,583.51 km) |
| Sliedrecht to Oliveira de Frades | 982.25 mi (1,580.78 km) |
