| Saint-Cyr-sur-Loire to Opwijk | 292.66 mi (470.99 km) |
| Saint-Cyr-sur-Loire to Ostend | 282.74 mi (455.03 km) |
| Saint-Cyr-sur-Loire to Oud-Heverlee | 297.76 mi (479.19 km) |
| Saint-Cyr-sur-Loire to Oud-Turnhout | 332.54 mi (535.16 km) |
| Saint-Cyr-sur-Loire to Oudenaarde | 272.31 mi (438.24 km) |
| Saint-Cyr-sur-Loire to Oudenburg | 281.35 mi (452.78 km) |
| Saint-Cyr-sur-Loire to Oupeye | 320.33 mi (515.52 km) |
| Saint-Cyr-sur-Loire to Overijse | 291.43 mi (469.00 km) |
| Saint-Cyr-sur-Loire to Overpelt | 338.98 mi (545.53 km) |
| Saint-Cyr-sur-Loire to Paal | 322.78 mi (519.47 km) |
| Saint-Cyr-sur-Loire to Peer | 335.67 mi (540.21 km) |
| Saint-Cyr-sur-Loire to Pepinster | 319.36 mi (513.95 km) |
| Saint-Cyr-sur-Loire to Peruwelz | 252.26 mi (405.98 km) |
| Saint-Cyr-sur-Loire to Perwez | 290.91 mi (468.17 km) |
| Saint-Cyr-sur-Loire to Philippeville | 261.47 mi (420.79 km) |
