| Covington to Orbetello | 4,727.57 mi (7,608.29 km) |
| Covington to Oria | 5,075.58 mi (8,168.36 km) |
| Covington to Oristano | 4,710.71 mi (7,581.16 km) |
| Covington to Orta Nova | 4,960.91 mi (7,983.81 km) |
| Covington to Orte | 4,776.31 mi (7,686.73 km) |
| Covington to Ortona | 4,864.92 mi (7,829.34 km) |
| Covington to Orvieto | 4,754.68 mi (7,651.92 km) |
| Covington to Orzinuovi | 4,562.93 mi (7,343.32 km) |
| Covington to Osimo | 4,781.98 mi (7,695.86 km) |
| Covington to Ospitaletto | 4,562.98 mi (7,343.40 km) |
| Covington to Ostuni | 5,063.68 mi (8,149.20 km) |
| Covington to Ottaviano | 4,928.64 mi (7,931.88 km) |
| Covington to Ovada | 4,537.29 mi (7,302.06 km) |
| Covington to Ozieri | 4,703.09 mi (7,568.88 km) |
| Covington to Paceco | 4,961.20 mi (7,984.29 km) |
