| Brainerd to Orbetello | 4,790.34 mi (7,709.30 km) |
| Brainerd to Oria | 5,116.38 mi (8,234.02 km) |
| Brainerd to Oristano | 4,815.43 mi (7,749.68 km) |
| Brainerd to Orta Nova | 5,006.37 mi (8,056.98 km) |
| Brainerd to Orte | 4,831.66 mi (7,775.81 km) |
| Brainerd to Ortona | 4,908.83 mi (7,900.00 km) |
| Brainerd to Orvieto | 4,809.13 mi (7,739.55 km) |
| Brainerd to Orzinuovi | 4,602.57 mi (7,407.11 km) |
| Brainerd to Osimo | 4,820.33 mi (7,757.57 km) |
| Brainerd to Ospitaletto | 4,600.17 mi (7,403.25 km) |
| Brainerd to Ostuni | 5,102.62 mi (8,211.88 km) |
| Brainerd to Ottaviano | 4,986.68 mi (8,025.29 km) |
| Brainerd to Ovada | 4,592.42 mi (7,390.78 km) |
| Brainerd to Ozieri | 4,798.33 mi (7,722.17 km) |
| Brainerd to Paceco | 5,059.48 mi (8,142.44 km) |
