| Citrus Heights to Octeville | 5,315.05 mi (8,553.74 km) |
| Citrus Heights to Oignies | 5,411.69 mi (8,709.27 km) |
| Citrus Heights to Oissel | 5,413.44 mi (8,712.09 km) |
| Citrus Heights to Olivet | 5,514.11 mi (8,874.11 km) |
| Citrus Heights to Ollioules | 5,886.80 mi (9,473.89 km) |
| Citrus Heights to Olonne-sur-Mer | 5,464.65 mi (8,794.51 km) |
| Citrus Heights to Oloron-Sainte-Marie | 5,672.05 mi (9,128.29 km) |
| Citrus Heights to Onet Village | 5,717.91 mi (9,202.09 km) |
| Citrus Heights to Onnaing | 5,433.38 mi (8,744.19 km) |
| Citrus Heights to Orange | 5,800.53 mi (9,335.05 km) |
| Citrus Heights to Orchies | 5,418.65 mi (8,720.47 km) |
| Citrus Heights to Orleans | 5,512.38 mi (8,871.32 km) |
| Citrus Heights to Orly | 5,483.54 mi (8,824.90 km) |
| Citrus Heights to Ormesson-sur-Marne | 5,485.74 mi (8,828.44 km) |
| Citrus Heights to Orsay | 5,479.72 mi (8,818.75 km) |
