| Tamiami to Orbetello | 5,117.57 mi (8,235.93 km) |
| Tamiami to Oria | 5,475.83 mi (8,812.49 km) |
| Tamiami to Oristano | 5,049.88 mi (8,127.00 km) |
| Tamiami to Orta Nova | 5,360.78 mi (8,627.34 km) |
| Tamiami to Orte | 5,172.94 mi (8,325.04 km) |
| Tamiami to Ortona | 5,271.12 mi (8,483.04 km) |
| Tamiami to Orvieto | 5,153.42 mi (8,293.63 km) |
| Tamiami to Orzinuovi | 4,988.51 mi (8,028.22 km) |
| Tamiami to Osimo | 5,198.68 mi (8,366.47 km) |
| Tamiami to Ospitaletto | 4,991.44 mi (8,032.94 km) |
| Tamiami to Ostuni | 5,466.69 mi (8,797.79 km) |
| Tamiami to Ottaviano | 5,314.80 mi (8,553.35 km) |
| Tamiami to Ovada | 4,945.75 mi (7,959.41 km) |
| Tamiami to Ozieri | 5,054.45 mi (8,134.35 km) |
| Tamiami to Paceco | 5,296.11 mi (8,523.27 km) |
