| Radcliff to Olympia (Washington) | 1,968.40 mi (3,167.83 km) |
| Radcliff to Olympia Heights (Florida) | 897.64 mi (1,444.61 km) |
| Radcliff to Omaha (Nebraska) | 588.68 mi (947.39 km) |
| Radcliff to On Top of the World Designated Place (Florida) | 637.66 mi (1,026.21 km) |
| Radcliff to Onalaska (Wisconsin) | 501.40 mi (806.92 km) |
| Radcliff to Oneida (New York) | 650.20 mi (1,046.39 km) |
| Radcliff to Oneonta (New York) | 656.69 mi (1,056.83 km) |
| Radcliff to Ontario (California) | 1,782.35 mi (2,868.41 km) |
| Radcliff to Ontario (Oregon) | 1,665.36 mi (2,680.14 km) |
| Radcliff to Opa-locka (Florida) | 888.06 mi (1,429.19 km) |
| Radcliff to Opelika (Alabama) | 357.86 mi (575.92 km) |
| Radcliff to Opelousas (Louisiana) | 614.03 mi (988.18 km) |
| Radcliff to Orange (California) | 1,799.09 mi (2,895.36 km) |
| Radcliff to Orange (Texas) | 695.03 mi (1,118.54 km) |
| Radcliff to Orange City (Florida) | 669.70 mi (1,077.78 km) |
