| Ankeny to Orbetello | 4,977.61 mi (8,010.69 km) |
| Ankeny to Oria | 5,312.99 mi (8,550.44 km) |
| Ankeny to Oristano | 4,986.96 mi (8,025.74 km) |
| Ankeny to Orta Nova | 5,200.86 mi (8,369.98 km) |
| Ankeny to Orte | 5,021.84 mi (8,081.87 km) |
| Ankeny to Ortona | 5,103.49 mi (8,213.27 km) |
| Ankeny to Orvieto | 4,999.54 mi (8,045.98 km) |
| Ankeny to Orzinuovi | 4,797.47 mi (7,720.78 km) |
| Ankeny to Osimo | 5,016.62 mi (8,073.48 km) |
| Ankeny to Ospitaletto | 4,795.94 mi (7,718.32 km) |
| Ankeny to Ostuni | 5,299.84 mi (8,529.28 km) |
| Ankeny to Ottaviano | 5,176.51 mi (8,330.79 km) |
| Ankeny to Ovada | 4,781.65 mi (7,695.33 km) |
| Ankeny to Ozieri | 4,973.43 mi (8,003.97 km) |
| Ankeny to Paceco | 5,234.50 mi (8,424.11 km) |
