| Sterling Heights to Orbetello | 4,518.21 mi (7,271.36 km) |
| Sterling Heights to Oria | 4,862.58 mi (7,825.57 km) |
| Sterling Heights to Oristano | 4,510.83 mi (7,259.48 km) |
| Sterling Heights to Orta Nova | 4,748.55 mi (7,642.06 km) |
| Sterling Heights to Orte | 4,565.51 mi (7,347.48 km) |
| Sterling Heights to Ortona | 4,651.97 mi (7,486.62 km) |
| Sterling Heights to Orvieto | 4,543.62 mi (7,312.25 km) |
| Sterling Heights to Orzinuovi | 4,348.18 mi (6,997.73 km) |
| Sterling Heights to Osimo | 4,567.63 mi (7,350.89 km) |
| Sterling Heights to Ospitaletto | 4,347.73 mi (6,997.00 km) |
| Sterling Heights to Ostuni | 4,850.26 mi (7,805.74 km) |
| Sterling Heights to Ottaviano | 4,718.87 mi (7,594.29 km) |
| Sterling Heights to Ovada | 4,325.70 mi (6,961.55 km) |
| Sterling Heights to Ozieri | 4,500.95 mi (7,243.58 km) |
| Sterling Heights to Paceco | 4,760.59 mi (7,661.42 km) |
