| Alcobendas to Octeville | 635.70 mi (1,023.06 km) |
| Alcobendas to Oignies | 757.07 mi (1,218.39 km) |
| Alcobendas to Oissel | 650.67 mi (1,047.16 km) |
| Alcobendas to Olivet | 575.55 mi (926.26 km) |
| Alcobendas to Ollioules | 519.82 mi (836.56 km) |
| Alcobendas to Olonne-sur-Mer | 425.06 mi (684.07 km) |
| Alcobendas to Oloron-Sainte-Marie | 240.91 mi (387.71 km) |
| Alcobendas to Onet Village | 413.18 mi (664.95 km) |
| Alcobendas to Onnaing | 764.91 mi (1,231.00 km) |
| Alcobendas to Orange | 497.62 mi (800.84 km) |
| Alcobendas to Orchies | 762.57 mi (1,227.24 km) |
| Alcobendas to Orleans | 578.05 mi (930.28 km) |
| Alcobendas to Orly | 639.51 mi (1,029.19 km) |
| Alcobendas to Ormesson-sur-Marne | 645.33 mi (1,038.55 km) |
| Alcobendas to Orsay | 632.16 mi (1,017.36 km) |
