| East Palo Alto to Orbetello | 6,185.06 mi (9,953.89 km) |
| East Palo Alto to Oria | 6,478.68 mi (10,426.43 km) |
| East Palo Alto to Oristano | 6,246.11 mi (10,052.15 km) |
| East Palo Alto to Orta Nova | 6,377.25 mi (10,263.19 km) |
| East Palo Alto to Orte | 6,218.07 mi (10,007.02 km) |
| East Palo Alto to Ortona | 6,281.54 mi (10,109.16 km) |
| East Palo Alto to Orvieto | 6,195.44 mi (9,970.59 km) |
| East Palo Alto to Orzinuovi | 5,981.81 mi (9,626.79 km) |
| East Palo Alto to Osimo | 6,190.63 mi (9,962.86 km) |
| East Palo Alto to Ospitaletto | 5,977.14 mi (9,619.28 km) |
| East Palo Alto to Ostuni | 6,463.51 mi (10,402.01 km) |
| East Palo Alto to Ottaviano | 6,370.56 mi (10,252.43 km) |
| East Palo Alto to Ovada | 5,986.54 mi (9,634.41 km) |
| East Palo Alto to Ozieri | 6,221.58 mi (10,012.67 km) |
| East Palo Alto to Paceco | 6,478.08 mi (10,425.46 km) |
