| Radford to Orangeburg (South Carolina) | 251.42 mi (404.62 km) |
| Radford to Orangevale (California) | 2,201.14 mi (3,542.39 km) |
| Radford to Orchards (Washington) | 2,226.52 mi (3,583.23 km) |
| Radford to Orcutt (California) | 2,217.49 mi (3,568.71 km) |
| Radford to Oregon (Ohio) | 348.49 mi (560.85 km) |
| Radford to Oregon (Wisconsin) | 615.03 mi (989.79 km) |
| Radford to Oregon City (Oregon) | 2,229.52 mi (3,588.06 km) |
| Radford to Orem (Utah) | 1,684.44 mi (2,710.84 km) |
| Radford to Orinda (California) | 2,262.76 mi (3,641.56 km) |
| Radford to Orland Park (Illinois) | 497.88 mi (801.26 km) |
| Radford to Orlando (Florida) | 599.05 mi (964.08 km) |
| Radford to Ormond Beach (Florida) | 541.52 mi (871.49 km) |
| Radford to Oro Valley (Arizona) | 1,748.91 mi (2,814.61 km) |
| Radford to Oroville (California) | 2,209.91 mi (3,556.51 km) |
| Radford to Oshkosh (Wisconsin) | 634.73 mi (1,021.50 km) |
