| Hacienda Heights to Octeville | 5,470.55 mi (8,803.99 km) |
| Hacienda Heights to Oignies | 5,583.28 mi (8,985.43 km) |
| Hacienda Heights to Oissel | 5,575.17 mi (8,972.38 km) |
| Hacienda Heights to Olivet | 5,671.95 mi (9,128.12 km) |
| Hacienda Heights to Ollioules | 6,037.73 mi (9,716.78 km) |
| Hacienda Heights to Olonne-sur-Mer | 5,606.15 mi (9,022.23 km) |
| Hacienda Heights to Oloron-Sainte-Marie | 5,802.41 mi (9,338.08 km) |
| Hacienda Heights to Onet Village | 5,863.33 mi (9,436.12 km) |
| Hacienda Heights to Onnaing | 5,606.29 mi (9,022.46 km) |
| Hacienda Heights to Orange | 5,952.05 mi (9,578.89 km) |
| Hacienda Heights to Orchies | 5,590.94 mi (8,997.76 km) |
| Hacienda Heights to Orleans | 5,670.40 mi (9,125.62 km) |
| Hacienda Heights to Orly | 5,646.42 mi (9,087.03 km) |
| Hacienda Heights to Ormesson-sur-Marne | 5,649.20 mi (9,091.51 km) |
| Hacienda Heights to Orsay | 5,641.83 mi (9,079.65 km) |
