| Channahon to Orbetello | 4,780.14 mi (7,692.89 km) |
| Channahon to Oria | 5,121.63 mi (8,242.46 km) |
| Channahon to Oristano | 4,778.31 mi (7,689.94 km) |
| Channahon to Orta Nova | 5,008.18 mi (8,059.89 km) |
| Channahon to Orte | 4,826.40 mi (7,767.35 km) |
| Channahon to Ortona | 4,911.24 mi (7,903.88 km) |
| Channahon to Orvieto | 4,804.36 mi (7,731.87 km) |
| Channahon to Orzinuovi | 4,606.43 mi (7,413.33 km) |
| Channahon to Osimo | 4,825.95 mi (7,766.61 km) |
| Channahon to Ospitaletto | 4,605.59 mi (7,411.98 km) |
| Channahon to Ostuni | 5,109.00 mi (8,222.15 km) |
| Channahon to Ottaviano | 4,980.33 mi (8,015.06 km) |
| Channahon to Ovada | 4,586.29 mi (7,380.92 km) |
| Channahon to Ozieri | 4,767.25 mi (7,672.14 km) |
| Channahon to Paceco | 5,027.49 mi (8,090.97 km) |
