| Tullahoma to Orbetello | 4,958.87 mi (7,980.52 km) |
| Tullahoma to Oria | 5,309.73 mi (8,545.18 km) |
| Tullahoma to Oristano | 4,933.37 mi (7,939.49 km) |
| Tullahoma to Orta Nova | 5,194.61 mi (8,359.92 km) |
| Tullahoma to Orte | 5,008.86 mi (8,060.98 km) |
| Tullahoma to Ortona | 5,099.30 mi (8,206.53 km) |
| Tullahoma to Orvieto | 4,987.49 mi (8,026.59 km) |
| Tullahoma to Orzinuovi | 4,799.32 mi (7,723.76 km) |
| Tullahoma to Osimo | 5,017.73 mi (8,075.26 km) |
| Tullahoma to Ospitaletto | 4,799.82 mi (7,724.56 km) |
| Tullahoma to Ostuni | 5,298.22 mi (8,526.66 km) |
| Tullahoma to Ottaviano | 5,160.03 mi (8,304.27 km) |
| Tullahoma to Ovada | 4,770.88 mi (7,677.99 km) |
| Tullahoma to Ozieri | 4,927.82 mi (7,930.56 km) |
| Tullahoma to Paceco | 5,184.11 mi (8,343.02 km) |
