| Clinton to Orbetello | 4,409.18 mi (7,095.90 km) |
| Clinton to Oria | 4,762.35 mi (7,664.27 km) |
| Clinton to Oristano | 4,377.21 mi (7,044.43 km) |
| Clinton to Orta Nova | 4,646.93 mi (7,478.51 km) |
| Clinton to Orte | 4,460.28 mi (7,178.13 km) |
| Clinton to Ortona | 4,552.44 mi (7,326.44 km) |
| Clinton to Orvieto | 4,439.20 mi (7,144.20 km) |
| Clinton to Orzinuovi | 4,255.07 mi (6,847.88 km) |
| Clinton to Osimo | 4,472.45 mi (7,197.71 km) |
| Clinton to Ospitaletto | 4,256.09 mi (6,849.52 km) |
| Clinton to Ostuni | 4,751.26 mi (7,646.42 km) |
| Clinton to Ottaviano | 4,610.20 mi (7,419.39 km) |
| Clinton to Ovada | 4,223.66 mi (6,797.32 km) |
| Clinton to Ozieri | 4,373.00 mi (7,037.66 km) |
| Clinton to Paceco | 4,627.90 mi (7,447.89 km) |
