| Indian Trail to Orbetello | 4,725.88 mi (7,605.57 km) |
| Indian Trail to Oria | 5,080.29 mi (8,175.94 km) |
| Indian Trail to Oristano | 4,688.25 mi (7,545.02 km) |
| Indian Trail to Orta Nova | 4,964.76 mi (7,990.01 km) |
| Indian Trail to Orte | 4,777.67 mi (7,688.92 km) |
| Indian Trail to Ortona | 4,870.80 mi (7,838.79 km) |
| Indian Trail to Orvieto | 4,756.78 mi (7,655.29 km) |
| Indian Trail to Orzinuovi | 4,574.99 mi (7,362.74 km) |
| Indian Trail to Osimo | 4,791.71 mi (7,711.51 km) |
| Indian Trail to Ospitaletto | 4,576.26 mi (7,364.77 km) |
| Indian Trail to Ostuni | 5,069.45 mi (8,158.50 km) |
| Indian Trail to Ottaviano | 4,926.66 mi (7,928.69 km) |
| Indian Trail to Ovada | 4,542.01 mi (7,309.66 km) |
| Indian Trail to Ozieri | 4,685.48 mi (7,540.56 km) |
| Indian Trail to Paceco | 4,938.71 mi (7,948.08 km) |
