| Fort Morgan to Orbetello | 5,429.40 mi (8,737.77 km) |
| Fort Morgan to Oria | 5,753.79 mi (9,259.84 km) |
| Fort Morgan to Oristano | 5,455.13 mi (8,779.18 km) |
| Fort Morgan to Orta Nova | 5,644.27 mi (9,083.57 km) |
| Fort Morgan to Orte | 5,470.34 mi (8,803.66 km) |
| Fort Morgan to Ortona | 5,546.74 mi (8,926.62 km) |
| Fort Morgan to Orvieto | 5,447.78 mi (8,767.36 km) |
| Fort Morgan to Orzinuovi | 5,240.59 mi (8,433.91 km) |
| Fort Morgan to Osimo | 5,457.97 mi (8,783.75 km) |
| Fort Morgan to Ospitaletto | 5,238.03 mi (8,429.79 km) |
| Fort Morgan to Ostuni | 5,739.91 mi (9,237.49 km) |
| Fort Morgan to Ottaviano | 5,625.35 mi (9,053.13 km) |
| Fort Morgan to Ovada | 5,231.31 mi (8,418.98 km) |
| Fort Morgan to Ozieri | 5,438.07 mi (8,751.73 km) |
| Fort Morgan to Paceco | 5,699.22 mi (9,172.00 km) |
