| Arcos de Valdevez to Octeville | 628.45 mi (1,011.39 km) |
| Arcos de Valdevez to Oignies | 806.40 mi (1,297.78 km) |
| Arcos de Valdevez to Oissel | 691.41 mi (1,112.72 km) |
| Arcos de Valdevez to Olivet | 653.45 mi (1,051.63 km) |
| Arcos de Valdevez to Ollioules | 731.33 mi (1,176.97 km) |
| Arcos de Valdevez to Olonne-sur-Mer | 461.59 mi (742.85 km) |
| Arcos de Valdevez to Oloron-Sainte-Marie | 408.39 mi (657.23 km) |
| Arcos de Valdevez to Onet Village | 581.58 mi (935.96 km) |
| Arcos de Valdevez to Onnaing | 822.32 mi (1,323.40 km) |
| Arcos de Valdevez to Orange | 686.18 mi (1,104.30 km) |
| Arcos de Valdevez to Orchies | 814.73 mi (1,311.19 km) |
| Arcos de Valdevez to Orleans | 655.33 mi (1,054.65 km) |
| Arcos de Valdevez to Orly | 708.11 mi (1,139.59 km) |
| Arcos de Valdevez to Ormesson-sur-Marne | 715.11 mi (1,150.86 km) |
| Arcos de Valdevez to Orsay | 698.81 mi (1,124.63 km) |
