| Citrus to Orbetello | 6,245.58 mi (10,051.29 km) |
| Citrus to Oria | 6,555.05 mi (10,549.34 km) |
| Citrus to Oristano | 6,288.78 mi (10,120.81 km) |
| Citrus to Orta Nova | 6,449.42 mi (10,379.34 km) |
| Citrus to Orte | 6,282.59 mi (10,110.85 km) |
| Citrus to Ortona | 6,352.49 mi (10,223.35 km) |
| Citrus to Orvieto | 6,259.91 mi (10,074.35 km) |
| Citrus to Orzinuovi | 6,048.58 mi (9,734.26 km) |
| Citrus to Osimo | 6,262.25 mi (10,078.12 km) |
| Citrus to Ospitaletto | 6,044.90 mi (9,728.33 km) |
| Citrus to Ostuni | 6,540.42 mi (10,525.79 km) |
| Citrus to Ottaviano | 6,436.86 mi (10,359.12 km) |
| Citrus to Ovada | 6,046.57 mi (9,731.01 km) |
| Citrus to Ozieri | 6,268.11 mi (10,087.55 km) |
| Citrus to Paceco | 6,527.85 mi (10,505.56 km) |
