| Kirksville to Orbetello | 5,007.18 mi (8,058.28 km) |
| Kirksville to Oria | 5,346.19 mi (8,603.85 km) |
| Kirksville to Oristano | 5,009.73 mi (8,062.38 km) |
| Kirksville to Orta Nova | 5,233.27 mi (8,422.13 km) |
| Kirksville to Orte | 5,052.61 mi (8,131.39 km) |
| Kirksville to Ortona | 5,136.11 mi (8,265.77 km) |
| Kirksville to Orvieto | 5,030.45 mi (8,095.72 km) |
| Kirksville to Orzinuovi | 4,830.66 mi (7,774.20 km) |
| Kirksville to Osimo | 5,050.10 mi (8,127.35 km) |
| Kirksville to Ospitaletto | 4,829.52 mi (7,772.37 km) |
| Kirksville to Ostuni | 5,333.33 mi (8,583.16 km) |
| Kirksville to Ottaviano | 5,206.90 mi (8,379.69 km) |
| Kirksville to Ovada | 4,812.38 mi (7,744.78 km) |
| Kirksville to Ozieri | 4,997.75 mi (8,043.09 km) |
| Kirksville to Paceco | 5,258.37 mi (8,462.53 km) |
