| Santiago do Cacem to Opwijk | 1,093.74 mi (1,760.20 km) |
| Santiago do Cacem to Ostend | 1,073.88 mi (1,728.25 km) |
| Santiago do Cacem to Oud-Heverlee | 1,100.54 mi (1,771.14 km) |
| Santiago do Cacem to Oud-Turnhout | 1,134.68 mi (1,826.09 km) |
| Santiago do Cacem to Oudenaarde | 1,071.35 mi (1,724.18 km) |
| Santiago do Cacem to Oudenburg | 1,073.60 mi (1,727.79 km) |
| Santiago do Cacem to Oupeye | 1,123.25 mi (1,807.70 km) |
| Santiago do Cacem to Overijse | 1,094.09 mi (1,760.77 km) |
| Santiago do Cacem to Overpelt | 1,142.04 mi (1,837.93 km) |
| Santiago do Cacem to Paal | 1,125.85 mi (1,811.88 km) |
| Santiago do Cacem to Peer | 1,138.85 mi (1,832.81 km) |
| Santiago do Cacem to Pepinster | 1,121.62 mi (1,805.07 km) |
| Santiago do Cacem to Peruwelz | 1,053.06 mi (1,694.73 km) |
| Santiago do Cacem to Perwez | 1,094.14 mi (1,760.84 km) |
| Santiago do Cacem to Philippeville | 1,064.67 mi (1,713.43 km) |
