| Gibsonton to Orbetello | 5,119.06 mi (8,238.33 km) |
| Gibsonton to Oria | 5,476.66 mi (8,813.84 km) |
| Gibsonton to Oristano | 5,061.90 mi (8,146.33 km) |
| Gibsonton to Orta Nova | 5,361.20 mi (8,628.02 km) |
| Gibsonton to Orte | 5,173.25 mi (8,325.54 km) |
| Gibsonton to Ortona | 5,269.78 mi (8,480.89 km) |
| Gibsonton to Orvieto | 5,153.19 mi (8,293.25 km) |
| Gibsonton to Orzinuovi | 4,981.68 mi (8,017.24 km) |
| Gibsonton to Osimo | 5,194.74 mi (8,360.12 km) |
| Gibsonton to Ospitaletto | 4,984.00 mi (8,020.97 km) |
| Gibsonton to Ostuni | 5,466.89 mi (8,798.10 km) |
| Gibsonton to Ottaviano | 5,318.00 mi (8,558.50 km) |
| Gibsonton to Ovada | 4,942.47 mi (7,954.13 km) |
| Gibsonton to Ozieri | 5,063.91 mi (8,149.58 km) |
| Gibsonton to Paceco | 5,310.15 mi (8,545.86 km) |
