| Fountain Inn to Orbetello | 4,811.21 mi (7,742.89 km) |
| Fountain Inn to Oria | 5,165.12 mi (8,312.46 km) |
| Fountain Inn to Oristano | 4,775.44 mi (7,685.33 km) |
| Fountain Inn to Orta Nova | 5,049.63 mi (8,126.60 km) |
| Fountain Inn to Orte | 4,862.72 mi (7,825.80 km) |
| Fountain Inn to Ortona | 4,955.43 mi (7,975.00 km) |
| Fountain Inn to Orvieto | 4,841.75 mi (7,792.04 km) |
| Fountain Inn to Orzinuovi | 4,658.86 mi (7,497.70 km) |
| Fountain Inn to Osimo | 4,875.91 mi (7,847.03 km) |
| Fountain Inn to Ospitaletto | 4,659.99 mi (7,499.53 km) |
| Fountain Inn to Ostuni | 5,154.18 mi (8,294.84 km) |
| Fountain Inn to Ottaviano | 5,012.09 mi (8,066.18 km) |
| Fountain Inn to Ovada | 4,626.63 mi (7,445.84 km) |
| Fountain Inn to Ozieri | 4,772.26 mi (7,680.21 km) |
| Fountain Inn to Paceco | 5,025.98 mi (8,088.53 km) |
