| East Grand Rapids to Orbetello | 4,608.31 mi (7,416.35 km) |
| East Grand Rapids to Oria | 4,949.88 mi (7,966.07 km) |
| East Grand Rapids to Oristano | 4,606.76 mi (7,413.87 km) |
| East Grand Rapids to Orta Nova | 4,836.41 mi (7,783.44 km) |
| East Grand Rapids to Orte | 4,654.59 mi (7,490.84 km) |
| East Grand Rapids to Ortona | 4,739.48 mi (7,627.46 km) |
| East Grand Rapids to Orvieto | 4,632.55 mi (7,455.36 km) |
| East Grand Rapids to Orzinuovi | 4,434.72 mi (7,136.98 km) |
| East Grand Rapids to Osimo | 4,654.24 mi (7,490.27 km) |
| East Grand Rapids to Ospitaletto | 4,433.90 mi (7,135.67 km) |
| East Grand Rapids to Ostuni | 4,937.27 mi (7,945.77 km) |
| East Grand Rapids to Ottaviano | 4,808.50 mi (7,738.54 km) |
| East Grand Rapids to Ovada | 4,414.48 mi (7,104.41 km) |
| East Grand Rapids to Ozieri | 4,595.59 mi (7,395.88 km) |
| East Grand Rapids to Paceco | 4,855.88 mi (7,814.78 km) |
