| Trussville to Orbetello | 5,051.51 mi (8,129.62 km) |
| Trussville to Oria | 5,403.77 mi (8,696.53 km) |
| Trussville to Oristano | 5,021.27 mi (8,080.96 km) |
| Trussville to Orta Nova | 5,288.47 mi (8,510.97 km) |
| Trussville to Orte | 5,102.17 mi (8,211.15 km) |
| Trussville to Ortona | 5,193.60 mi (8,358.29 km) |
| Trussville to Orvieto | 5,080.97 mi (8,177.02 km) |
| Trussville to Orzinuovi | 4,894.92 mi (7,877.61 km) |
| Trussville to Osimo | 5,112.85 mi (8,228.34 km) |
| Trussville to Ospitaletto | 4,895.67 mi (7,878.82 km) |
| Trussville to Ostuni | 5,392.50 mi (8,678.38 km) |
| Trussville to Ottaviano | 5,252.61 mi (8,453.26 km) |
| Trussville to Ovada | 4,864.92 mi (7,829.34 km) |
| Trussville to Ozieri | 5,016.86 mi (8,073.86 km) |
| Trussville to Paceco | 5,271.98 mi (8,484.43 km) |
