| Redding to Orangeburg (South Carolina) | 2,318.36 mi (3,731.05 km) |
| Redding to Orangevale (California) | 143.56 mi (231.04 km) |
| Redding to Orchards (Washington) | 353.80 mi (569.39 km) |
| Redding to Orcutt (California) | 407.91 mi (656.47 km) |
| Redding to Oregon (Ohio) | 2,010.77 mi (3,236.03 km) |
| Redding to Oregon (Wisconsin) | 1,696.73 mi (2,730.62 km) |
| Redding to Oregon City (Oregon) | 329.91 mi (530.94 km) |
| Redding to Orem (Utah) | 560.88 mi (902.65 km) |
| Redding to Orinda (California) | 186.06 mi (299.43 km) |
| Redding to Orland Park (Illinois) | 1,786.17 mi (2,874.56 km) |
| Redding to Orlando (Florida) | 2,454.86 mi (3,950.72 km) |
| Redding to Ormond Beach (Florida) | 2,438.45 mi (3,924.31 km) |
| Redding to Oro Valley (Arizona) | 845.51 mi (1,360.72 km) |
| Redding to Oroville (California) | 85.22 mi (137.15 km) |
| Redding to Oshkosh (Wisconsin) | 1,731.62 mi (2,786.77 km) |
