| Fort Leonard Wood to Orbetello | 5,100.84 mi (8,209.01 km) |
| Fort Leonard Wood to Oria | 5,443.89 mi (8,761.09 km) |
| Fort Leonard Wood to Oristano | 5,094.90 mi (8,199.45 km) |
| Fort Leonard Wood to Orta Nova | 5,330.15 mi (8,578.04 km) |
| Fort Leonard Wood to Orte | 5,147.70 mi (8,284.42 km) |
| Fort Leonard Wood to Ortona | 5,233.37 mi (8,422.29 km) |
| Fort Leonard Wood to Orvieto | 5,125.73 mi (8,249.07 km) |
| Fort Leonard Wood to Orzinuovi | 4,929.00 mi (7,932.45 km) |
| Fort Leonard Wood to Osimo | 5,148.51 mi (8,285.72 km) |
| Fort Leonard Wood to Ospitaletto | 4,928.32 mi (7,931.37 km) |
| Fort Leonard Wood to Ostuni | 5,431.40 mi (8,740.99 km) |
| Fort Leonard Wood to Ottaviano | 5,301.32 mi (8,531.65 km) |
| Fort Leonard Wood to Ovada | 4,907.72 mi (7,898.22 km) |
| Fort Leonard Wood to Ozieri | 5,084.88 mi (8,183.32 km) |
| Fort Leonard Wood to Paceco | 5,344.60 mi (8,601.31 km) |
