| Brookside to Orbetello | 4,320.82 mi (6,953.69 km) |
| Brookside to Oria | 4,673.73 mi (7,521.64 km) |
| Brookside to Oristano | 4,290.04 mi (6,904.15 km) |
| Brookside to Orta Nova | 4,558.33 mi (7,335.93 km) |
| Brookside to Orte | 4,371.78 mi (7,035.70 km) |
| Brookside to Ortona | 4,463.74 mi (7,183.69 km) |
| Brookside to Orvieto | 4,350.66 mi (7,001.71 km) |
| Brookside to Orzinuovi | 4,166.10 mi (6,704.68 km) |
| Brookside to Osimo | 4,383.58 mi (7,054.69 km) |
| Brookside to Ospitaletto | 4,167.07 mi (6,706.25 km) |
| Brookside to Ostuni | 4,662.59 mi (7,503.71 km) |
| Brookside to Ottaviano | 4,521.87 mi (7,277.25 km) |
| Brookside to Ovada | 4,134.98 mi (6,654.60 km) |
| Brookside to Ozieri | 4,285.52 mi (6,896.88 km) |
| Brookside to Paceco | 4,540.76 mi (7,307.64 km) |
