| Alcazar de San Juan to Octeville | 710.36 mi (1,143.22 km) |
| Alcazar de San Juan to Oignies | 821.63 mi (1,322.29 km) |
| Alcazar de San Juan to Oissel | 718.27 mi (1,155.95 km) |
| Alcazar de San Juan to Olivet | 637.40 mi (1,025.79 km) |
| Alcazar de San Juan to Ollioules | 535.80 mi (862.28 km) |
| Alcazar de San Juan to Olonne-sur-Mer | 497.94 mi (801.36 km) |
| Alcazar de San Juan to Oloron-Sainte-Marie | 294.44 mi (473.86 km) |
| Alcazar de San Juan to Onet Village | 454.10 mi (730.80 km) |
| Alcazar de San Juan to Onnaing | 827.79 mi (1,332.21 km) |
| Alcazar de San Juan to Orange | 526.37 mi (847.11 km) |
| Alcazar de San Juan to Orchies | 826.52 mi (1,330.15 km) |
| Alcazar de San Juan to Orleans | 639.97 mi (1,029.94 km) |
| Alcazar de San Juan to Orly | 702.03 mi (1,129.81 km) |
| Alcazar de San Juan to Ormesson-sur-Marne | 707.50 mi (1,138.61 km) |
| Alcazar de San Juan to Orsay | 695.22 mi (1,118.84 km) |
