| Santarem to Opwijk | 1,022.12 mi (1,644.94 km) |
| Santarem to Ostend | 1,000.07 mi (1,609.46 km) |
| Santarem to Oud-Heverlee | 1,029.85 mi (1,657.39 km) |
| Santarem to Oud-Turnhout | 1,063.47 mi (1,711.48 km) |
| Santarem to Oudenaarde | 999.15 mi (1,607.97 km) |
| Santarem to Oudenburg | 999.97 mi (1,609.29 km) |
| Santarem to Oupeye | 1,054.18 mi (1,696.54 km) |
| Santarem to Overijse | 1,023.32 mi (1,646.88 km) |
| Santarem to Overpelt | 1,071.59 mi (1,724.56 km) |
| Santarem to Paal | 1,055.44 mi (1,698.56 km) |
| Santarem to Peer | 1,068.63 mi (1,719.79 km) |
| Santarem to Pepinster | 1,053.10 mi (1,694.80 km) |
| Santarem to Peruwelz | 981.47 mi (1,579.52 km) |
| Santarem to Perwez | 1,024.10 mi (1,648.12 km) |
| Santarem to Philippeville | 995.17 mi (1,601.58 km) |
