| Louisville to Nuth | 4,297.46 mi (6,916.10 km) |
| Louisville to Oegstgeest | 4,203.89 mi (6,765.51 km) |
| Louisville to Oirschot | 4,256.67 mi (6,850.45 km) |
| Louisville to Oisterwijk | 4,250.25 mi (6,840.12 km) |
| Louisville to Oldebroek | 4,250.08 mi (6,839.84 km) |
| Louisville to Oldenzaal | 4,293.09 mi (6,909.07 km) |
| Louisville to Ommen | 4,267.42 mi (6,867.75 km) |
| Louisville to Oosterend | 4,239.23 mi (6,822.39 km) |
| Louisville to Oosterhout | 4,235.23 mi (6,815.95 km) |
| Louisville to Oosterwolde | 4,248.02 mi (6,836.52 km) |
| Louisville to Oostzaan | 4,212.19 mi (6,778.86 km) |
| Louisville to Opmeer | 4,206.66 mi (6,769.97 km) |
| Louisville to Oss | 4,256.70 mi (6,850.50 km) |
| Louisville to Oud-Beijerland | 4,212.39 mi (6,779.19 km) |
| Louisville to Oudenbosch | 4,224.06 mi (6,797.97 km) |
