| Louisville to Orangevale (California) | 1,913.56 mi (3,079.57 km) |
| Louisville to Orchards (Washington) | 1,946.96 mi (3,133.32 km) |
| Louisville to Orcutt (California) | 1,932.96 mi (3,110.80 km) |
| Louisville to Oregon (Ohio) | 267.96 mi (431.24 km) |
| Louisville to Oregon (Wisconsin) | 382.90 mi (616.22 km) |
| Louisville to Oregon City (Oregon) | 1,949.16 mi (3,136.87 km) |
| Louisville to Orem (Utah) | 1,396.90 mi (2,248.10 km) |
| Louisville to Orinda (California) | 1,975.32 mi (3,178.97 km) |
| Louisville to Orland Park (Illinois) | 265.12 mi (426.67 km) |
| Louisville to Orlando (Florida) | 713.98 mi (1,149.04 km) |
| Louisville to Ormond Beach (Florida) | 665.84 mi (1,071.57 km) |
| Louisville to Oro Valley (Arizona) | 1,477.26 mi (2,377.42 km) |
| Louisville to Oroville (California) | 1,922.37 mi (3,093.76 km) |
| Louisville to Oshkosh (Wisconsin) | 432.06 mi (695.34 km) |
| Louisville to Oskaloosa (Iowa) | 429.55 mi (691.29 km) |
