| Ostend to Orvault | 341.33 mi (549.32 km) |
| Ostend to Osny | 154.43 mi (248.53 km) |
| Ostend to Ostwald | 282.21 mi (454.17 km) |
| Ostend to Ouistreham | 194.38 mi (312.83 km) |
| Ostend to Oullins | 390.43 mi (628.34 km) |
| Ostend to Outreau | 68.02 mi (109.47 km) |
| Ostend to Oyonnax | 365.24 mi (587.79 km) |
| Ostend to Ozoir-la-Ferriere | 169.46 mi (272.72 km) |
| Ostend to Pace | 298.62 mi (480.58 km) |
| Ostend to Palaiseau | 176.08 mi (283.37 km) |
| Ostend to Pamiers | 563.64 mi (907.09 km) |
| Ostend to Panazol | 379.39 mi (610.56 km) |
| Ostend to Pantin | 162.56 mi (261.62 km) |
| Ostend to Paray-le-Monial | 334.37 mi (538.12 km) |
| Ostend to Parempuyre | 463.03 mi (745.18 km) |
