| Maricopa to Orbetello | 6,103.34 mi (9,822.37 km) |
| Maricopa to Oria | 6,426.36 mi (10,342.23 km) |
| Maricopa to Oristano | 6,129.25 mi (9,864.08 km) |
| Maricopa to Orta Nova | 6,317.27 mi (10,166.66 km) |
| Maricopa to Orte | 6,143.99 mi (9,887.80 km) |
| Maricopa to Ortona | 6,219.77 mi (10,009.75 km) |
| Maricopa to Orvieto | 6,121.42 mi (9,851.47 km) |
| Maricopa to Orzinuovi | 5,913.74 mi (9,517.24 km) |
| Maricopa to Osimo | 6,130.78 mi (9,866.54 km) |
| Maricopa to Ospitaletto | 5,911.05 mi (9,512.92 km) |
| Maricopa to Ostuni | 6,412.37 mi (10,319.71 km) |
| Maricopa to Ottaviano | 6,298.99 mi (10,137.24 km) |
| Maricopa to Ovada | 5,905.14 mi (9,503.40 km) |
| Maricopa to Ozieri | 6,112.34 mi (9,836.86 km) |
| Maricopa to Paceco | 6,373.50 mi (10,257.15 km) |
