| Palm Harbor to Orbetello | 5,124.94 mi (8,247.80 km) |
| Palm Harbor to Oria | 5,482.37 mi (8,823.03 km) |
| Palm Harbor to Oristano | 5,069.36 mi (8,158.35 km) |
| Palm Harbor to Orta Nova | 5,366.87 mi (8,637.15 km) |
| Palm Harbor to Orte | 5,178.94 mi (8,334.70 km) |
| Palm Harbor to Ortona | 5,275.20 mi (8,489.62 km) |
| Palm Harbor to Orvieto | 5,158.80 mi (8,302.29 km) |
| Palm Harbor to Orzinuovi | 4,986.34 mi (8,024.73 km) |
| Palm Harbor to Osimo | 5,199.78 mi (8,368.24 km) |
| Palm Harbor to Ospitaletto | 4,988.55 mi (8,028.30 km) |
| Palm Harbor to Ostuni | 5,472.50 mi (8,807.14 km) |
| Palm Harbor to Ottaviano | 5,324.10 mi (8,568.31 km) |
| Palm Harbor to Ovada | 4,947.67 mi (7,962.50 km) |
| Palm Harbor to Ozieri | 5,071.00 mi (8,160.98 km) |
| Palm Harbor to Paceco | 5,317.87 mi (8,558.28 km) |
