| Fort Payne to Orbetello | 4,976.50 mi (8,008.91 km) |
| Fort Payne to Oria | 5,328.60 mi (8,575.55 km) |
| Fort Payne to Oristano | 4,947.02 mi (7,961.46 km) |
| Fort Payne to Orta Nova | 5,213.31 mi (8,390.01 km) |
| Fort Payne to Orte | 5,027.08 mi (8,090.30 km) |
| Fort Payne to Ortona | 5,118.38 mi (8,237.24 km) |
| Fort Payne to Orvieto | 5,005.85 mi (8,056.14 km) |
| Fort Payne to Orzinuovi | 4,819.55 mi (7,756.32 km) |
| Fort Payne to Osimo | 5,037.54 mi (8,107.14 km) |
| Fort Payne to Ospitaletto | 4,820.28 mi (7,757.49 km) |
| Fort Payne to Ostuni | 5,317.29 mi (8,557.35 km) |
| Fort Payne to Ottaviano | 5,177.62 mi (8,332.57 km) |
| Fort Payne to Ovada | 4,789.73 mi (7,708.33 km) |
| Fort Payne to Ozieri | 4,942.41 mi (7,954.04 km) |
| Fort Payne to Paceco | 5,197.74 mi (8,364.96 km) |
