| Madisonville to Orbetello | 4,927.24 mi (7,929.63 km) |
| Madisonville to Oria | 5,274.97 mi (8,489.25 km) |
| Madisonville to Oristano | 4,910.65 mi (7,902.93 km) |
| Madisonville to Orta Nova | 5,160.35 mi (8,304.78 km) |
| Madisonville to Orte | 4,975.89 mi (8,007.91 km) |
| Madisonville to Ortona | 5,064.30 mi (8,150.21 km) |
| Madisonville to Orvieto | 4,954.23 mi (7,973.07 km) |
| Madisonville to Orzinuovi | 4,762.08 mi (7,663.83 km) |
| Madisonville to Osimo | 4,981.20 mi (8,016.47 km) |
| Madisonville to Ospitaletto | 4,762.07 mi (7,663.81 km) |
| Madisonville to Ostuni | 5,263.02 mi (8,470.02 km) |
| Madisonville to Ottaviano | 5,128.30 mi (8,253.20 km) |
| Madisonville to Ovada | 4,736.78 mi (7,623.11 km) |
| Madisonville to Ozieri | 4,903.03 mi (7,890.66 km) |
| Madisonville to Paceco | 5,161.15 mi (8,306.06 km) |
