| Tanaina to Orbetello | 5,163.30 mi (8,309.53 km) |
| Tanaina to Oria | 5,341.22 mi (8,595.87 km) |
| Tanaina to Oristano | 5,312.15 mi (8,549.09 km) |
| Tanaina to Orta Nova | 5,272.46 mi (8,485.21 km) |
| Tanaina to Orte | 5,171.35 mi (8,322.48 km) |
| Tanaina to Ortona | 5,193.81 mi (8,358.62 km) |
| Tanaina to Orvieto | 5,151.57 mi (8,290.65 km) |
| Tanaina to Orzinuovi | 4,950.92 mi (7,967.73 km) |
| Tanaina to Osimo | 5,109.75 mi (8,223.34 km) |
| Tanaina to Ospitaletto | 4,941.55 mi (7,952.65 km) |
| Tanaina to Ostuni | 5,324.91 mi (8,569.62 km) |
| Tanaina to Ottaviano | 5,297.03 mi (8,524.74 km) |
| Tanaina to Ovada | 4,991.22 mi (8,032.59 km) |
| Tanaina to Ozieri | 5,269.94 mi (8,481.15 km) |
| Tanaina to Paceco | 5,478.42 mi (8,816.67 km) |
