| Tallmadge to Orbetello | 4,510.92 mi (7,259.63 km) |
| Tallmadge to Oria | 4,858.62 mi (7,819.19 km) |
| Tallmadge to Oristano | 4,495.47 mi (7,234.75 km) |
| Tallmadge to Orta Nova | 4,743.99 mi (7,634.71 km) |
| Tallmadge to Orte | 4,559.52 mi (7,337.84 km) |
| Tallmadge to Ortona | 4,647.95 mi (7,480.15 km) |
| Tallmadge to Orvieto | 4,537.86 mi (7,302.99 km) |
| Tallmadge to Orzinuovi | 4,345.82 mi (6,993.92 km) |
| Tallmadge to Osimo | 4,564.90 mi (7,346.50 km) |
| Tallmadge to Ospitaletto | 4,345.84 mi (6,993.95 km) |
| Tallmadge to Ostuni | 4,846.68 mi (7,799.97 km) |
| Tallmadge to Ottaviano | 4,711.97 mi (7,583.18 km) |
| Tallmadge to Ovada | 4,320.41 mi (6,953.03 km) |
| Tallmadge to Ozieri | 4,487.44 mi (7,221.84 km) |
| Tallmadge to Paceco | 4,745.86 mi (7,637.72 km) |
