| Hacienda Heights to Oerlinghausen | 5,680.01 mi (9,141.10 km) |
| Hacienda Heights to Oestrich-Winkel | 5,760.94 mi (9,271.33 km) |
| Hacienda Heights to Offenburg | 5,837.07 mi (9,393.85 km) |
| Hacienda Heights to Oftersheim | 5,810.70 mi (9,351.41 km) |
| Hacienda Heights to Ohrdruf | 5,797.91 mi (9,330.84 km) |
| Hacienda Heights to Ohringen | 5,846.94 mi (9,409.74 km) |
| Hacienda Heights to Olbernhau | 5,879.02 mi (9,461.38 km) |
| Hacienda Heights to Olching | 5,953.34 mi (9,580.97 km) |
| Hacienda Heights to Oldenburg | 5,607.12 mi (9,023.79 km) |
| Hacienda Heights to Oldenburg in Holstein | 5,620.09 mi (9,044.66 km) |
| Hacienda Heights to Olfen | 5,655.62 mi (9,101.83 km) |
| Hacienda Heights to Olpe | 5,704.26 mi (9,180.12 km) |
| Hacienda Heights to Olsberg | 5,706.29 mi (9,183.38 km) |
| Hacienda Heights to Oranienburg | 5,764.00 mi (9,276.26 km) |
| Hacienda Heights to Ortenberg | 5,774.03 mi (9,292.40 km) |
