| Saarbrucken to Opwijk | 172.97 mi (278.37 km) |
| Saarbrucken to Ostend | 226.84 mi (365.07 km) |
| Saarbrucken to Oud-Heverlee | 151.46 mi (243.75 km) |
| Saarbrucken to Oud-Turnhout | 169.25 mi (272.39 km) |
| Saarbrucken to Oudenaarde | 187.69 mi (302.06 km) |
| Saarbrucken to Oudenburg | 222.30 mi (357.75 km) |
| Saarbrucken to Oupeye | 118.41 mi (190.56 km) |
| Saarbrucken to Overijse | 153.17 mi (246.51 km) |
| Saarbrucken to Overpelt | 153.87 mi (247.63 km) |
| Saarbrucken to Paal | 148.71 mi (239.32 km) |
| Saarbrucken to Peer | 148.00 mi (238.18 km) |
| Saarbrucken to Pepinster | 106.11 mi (170.78 km) |
| Saarbrucken to Peruwelz | 176.07 mi (283.35 km) |
| Saarbrucken to Perwez | 136.66 mi (219.93 km) |
| Saarbrucken to Philippeville | 128.21 mi (206.34 km) |
