| Steenokkerzeel to Oignies | 73.21 mi (117.83 km) |
| Steenokkerzeel to Oissel | 186.45 mi (300.07 km) |
| Steenokkerzeel to Olivet | 241.43 mi (388.55 km) |
| Steenokkerzeel to Ollioules | 541.17 mi (870.93 km) |
| Steenokkerzeel to Olonne-sur-Mer | 416.43 mi (670.17 km) |
| Steenokkerzeel to Oloron-Sainte-Marie | 585.17 mi (941.74 km) |
| Steenokkerzeel to Onet Village | 461.44 mi (742.61 km) |
| Steenokkerzeel to Onnaing | 54.19 mi (87.21 km) |
| Steenokkerzeel to Orange | 468.70 mi (754.31 km) |
| Steenokkerzeel to Orchies | 63.27 mi (101.82 km) |
| Steenokkerzeel to Orleans | 238.90 mi (384.47 km) |
| Steenokkerzeel to Orly | 177.39 mi (285.48 km) |
| Steenokkerzeel to Ormesson-sur-Marne | 171.52 mi (276.03 km) |
| Steenokkerzeel to Orsay | 185.05 mi (297.82 km) |
| Steenokkerzeel to Orthez | 569.73 mi (916.90 km) |
