| Rochester Hills to Orbetello | 4,520.00 mi (7,274.23 km) |
| Rochester Hills to Oria | 4,864.14 mi (7,828.08 km) |
| Rochester Hills to Oristano | 4,513.13 mi (7,263.18 km) |
| Rochester Hills to Orta Nova | 4,750.15 mi (7,644.63 km) |
| Rochester Hills to Orte | 4,567.21 mi (7,350.21 km) |
| Rochester Hills to Ortona | 4,653.53 mi (7,489.14 km) |
| Rochester Hills to Orvieto | 4,545.31 mi (7,314.96 km) |
| Rochester Hills to Orzinuovi | 4,349.66 mi (7,000.10 km) |
| Rochester Hills to Osimo | 4,569.12 mi (7,353.29 km) |
| Rochester Hills to Ospitaletto | 4,349.18 mi (6,999.33 km) |
| Rochester Hills to Ostuni | 4,851.79 mi (7,808.20 km) |
| Rochester Hills to Ottaviano | 4,720.62 mi (7,597.10 km) |
| Rochester Hills to Ovada | 4,327.37 mi (6,964.23 km) |
| Rochester Hills to Ozieri | 4,503.14 mi (7,247.10 km) |
| Rochester Hills to Paceco | 4,762.84 mi (7,665.04 km) |
