| Paducah to Orbetello | 4,987.34 mi (8,026.36 km) |
| Paducah to Oria | 5,334.46 mi (8,584.98 km) |
| Paducah to Oristano | 4,972.18 mi (8,001.94 km) |
| Paducah to Orta Nova | 5,219.95 mi (8,400.70 km) |
| Paducah to Orte | 5,035.74 mi (8,104.24 km) |
| Paducah to Ortona | 5,123.78 mi (8,245.93 km) |
| Paducah to Orvieto | 5,014.04 mi (8,069.32 km) |
| Paducah to Orzinuovi | 4,821.20 mi (7,758.97 km) |
| Paducah to Osimo | 5,040.41 mi (8,111.76 km) |
| Paducah to Ospitaletto | 4,821.09 mi (7,758.79 km) |
| Paducah to Ostuni | 5,322.43 mi (8,565.62 km) |
| Paducah to Ottaviano | 5,188.35 mi (8,349.84 km) |
| Paducah to Ovada | 4,796.47 mi (7,719.18 km) |
| Paducah to Ozieri | 4,964.24 mi (7,989.17 km) |
| Paducah to Paceco | 5,222.60 mi (8,404.96 km) |
