| Hacienda Heights to Orangevale (California) | 371.06 mi (597.16 km) |
| Hacienda Heights to Orchards (Washington) | 842.87 mi (1,356.47 km) |
| Hacienda Heights to Orcutt (California) | 152.03 mi (244.68 km) |
| Hacienda Heights to Oregon (Ohio) | 1,943.51 mi (3,127.78 km) |
| Hacienda Heights to Oregon (Wisconsin) | 1,654.85 mi (2,663.23 km) |
| Hacienda Heights to Oregon City (Oregon) | 821.08 mi (1,321.40 km) |
| Hacienda Heights to Orem (Utah) | 555.46 mi (893.92 km) |
| Hacienda Heights to Orinda (California) | 356.81 mi (574.23 km) |
| Hacienda Heights to Orland Park (Illinois) | 1,715.76 mi (2,761.24 km) |
| Hacienda Heights to Orlando (Florida) | 2,185.86 mi (3,517.80 km) |
| Hacienda Heights to Ormond Beach (Florida) | 2,181.09 mi (3,510.12 km) |
| Hacienda Heights to Oro Valley (Arizona) | 418.74 mi (673.89 km) |
| Hacienda Heights to Oroville (California) | 428.95 mi (690.32 km) |
| Hacienda Heights to Oshkosh (Wisconsin) | 1,712.37 mi (2,755.80 km) |
| Hacienda Heights to Oskaloosa (Iowa) | 1,468.26 mi (2,362.93 km) |
