| Lake Charles to Orbetello | 5,499.59 mi (8,850.73 km) |
| Lake Charles to Oria | 5,850.32 mi (9,415.17 km) |
| Lake Charles to Oristano | 5,473.31 mi (8,808.44 km) |
| Lake Charles to Orta Nova | 5,735.23 mi (9,229.96 km) |
| Lake Charles to Orte | 5,549.54 mi (8,931.13 km) |
| Lake Charles to Ortona | 5,639.86 mi (9,076.47 km) |
| Lake Charles to Orvieto | 5,528.16 mi (8,896.72 km) |
| Lake Charles to Orzinuovi | 5,339.58 mi (8,593.23 km) |
| Lake Charles to Osimo | 5,558.12 mi (8,944.92 km) |
| Lake Charles to Ospitaletto | 5,340.01 mi (8,593.91 km) |
| Lake Charles to Ostuni | 5,838.77 mi (9,396.59 km) |
| Lake Charles to Ottaviano | 5,700.75 mi (9,174.47 km) |
| Lake Charles to Ovada | 5,311.49 mi (8,548.02 km) |
| Lake Charles to Ozieri | 5,468.10 mi (8,800.06 km) |
| Lake Charles to Paceco | 5,724.05 mi (9,211.97 km) |
