| Hickory to Orbetello | 4,727.87 mi (7,608.78 km) |
| Hickory to Oria | 5,081.40 mi (8,177.72 km) |
| Hickory to Oristano | 4,693.82 mi (7,553.97 km) |
| Hickory to Orta Nova | 4,965.94 mi (7,991.92 km) |
| Hickory to Orte | 4,779.17 mi (7,691.34 km) |
| Hickory to Ortona | 4,871.57 mi (7,840.04 km) |
| Hickory to Orvieto | 4,758.14 mi (7,657.48 km) |
| Hickory to Orzinuovi | 4,574.51 mi (7,361.96 km) |
| Hickory to Osimo | 4,791.77 mi (7,711.61 km) |
| Hickory to Ospitaletto | 4,575.57 mi (7,363.66 km) |
| Hickory to Ostuni | 5,070.37 mi (8,159.97 km) |
| Hickory to Ottaviano | 4,928.83 mi (7,932.18 km) |
| Hickory to Ovada | 4,542.78 mi (7,310.90 km) |
| Hickory to Ozieri | 4,690.21 mi (7,548.16 km) |
| Hickory to Paceco | 4,944.43 mi (7,957.30 km) |
