| Gateway to Orbetello | 5,144.79 mi (8,279.74 km) |
| Gateway to Oria | 5,502.82 mi (8,855.93 km) |
| Gateway to Oristano | 5,082.48 mi (8,179.46 km) |
| Gateway to Orta Nova | 5,387.52 mi (8,670.38 km) |
| Gateway to Orte | 5,199.57 mi (8,367.89 km) |
| Gateway to Ortona | 5,296.92 mi (8,524.57 km) |
| Gateway to Orvieto | 5,179.76 mi (8,336.02 km) |
| Gateway to Orzinuovi | 5,011.37 mi (8,065.01 km) |
| Gateway to Osimo | 5,223.11 mi (8,405.78 km) |
| Gateway to Ospitaletto | 5,013.97 mi (8,069.21 km) |
| Gateway to Ostuni | 5,493.35 mi (8,840.68 km) |
| Gateway to Ottaviano | 5,342.97 mi (8,598.67 km) |
| Gateway to Ovada | 4,970.44 mi (7,999.15 km) |
| Gateway to Ozieri | 5,085.75 mi (8,184.72 km) |
| Gateway to Paceco | 5,329.81 mi (8,577.50 km) |
