| Castello de Ampurias to Octeville | 557.03 mi (896.45 km) |
| Castello de Ampurias to Oignies | 567.34 mi (913.04 km) |
| Castello de Ampurias to Oissel | 498.62 mi (802.46 km) |
| Castello de Ampurias to Olivet | 391.52 mi (630.09 km) |
| Castello de Ampurias to Ollioules | 153.36 mi (246.81 km) |
| Castello de Ampurias to Olonne-sur-Mer | 380.15 mi (611.79 km) |
| Castello de Ampurias to Oloron-Sainte-Marie | 197.71 mi (318.18 km) |
| Castello de Ampurias to Onet Village | 147.60 mi (237.54 km) |
| Castello de Ampurias to Onnaing | 562.25 mi (904.86 km) |
| Castello de Ampurias to Orange | 156.55 mi (251.95 km) |
| Castello de Ampurias to Orchies | 567.76 mi (913.72 km) |
| Castello de Ampurias to Orleans | 394.09 mi (634.23 km) |
| Castello de Ampurias to Orly | 449.33 mi (723.12 km) |
| Castello de Ampurias to Ormesson-sur-Marne | 451.76 mi (727.03 km) |
| Castello de Ampurias to Orsay | 447.02 mi (719.40 km) |
