| Linthicum to Orbetello | 4,380.41 mi (7,049.59 km) |
| Linthicum to Oria | 4,733.27 mi (7,617.46 km) |
| Linthicum to Oristano | 4,349.65 mi (7,000.08 km) |
| Linthicum to Orta Nova | 4,617.88 mi (7,431.76 km) |
| Linthicum to Orte | 4,431.35 mi (7,131.57 km) |
| Linthicum to Ortona | 4,523.27 mi (7,279.50 km) |
| Linthicum to Orvieto | 4,410.22 mi (7,097.56 km) |
| Linthicum to Orzinuovi | 4,225.54 mi (6,800.35 km) |
| Linthicum to Osimo | 4,443.06 mi (7,150.41 km) |
| Linthicum to Ospitaletto | 4,226.49 mi (6,801.88 km) |
| Linthicum to Ostuni | 4,722.12 mi (7,599.52 km) |
| Linthicum to Ottaviano | 4,581.46 mi (7,373.15 km) |
| Linthicum to Ovada | 4,194.51 mi (6,750.41 km) |
| Linthicum to Ozieri | 4,345.15 mi (6,992.84 km) |
| Linthicum to Paceco | 4,600.37 mi (7,403.58 km) |
