| Glenvar Heights to Orbetello | 5,115.52 mi (8,232.63 km) |
| Glenvar Heights to Oria | 5,473.79 mi (8,809.21 km) |
| Glenvar Heights to Oristano | 5,047.51 mi (8,123.18 km) |
| Glenvar Heights to Orta Nova | 5,358.76 mi (8,624.08 km) |
| Glenvar Heights to Orte | 5,170.93 mi (8,321.81 km) |
| Glenvar Heights to Ortona | 5,269.15 mi (8,479.88 km) |
| Glenvar Heights to Orvieto | 5,151.43 mi (8,290.43 km) |
| Glenvar Heights to Orzinuovi | 4,986.73 mi (8,025.36 km) |
| Glenvar Heights to Osimo | 5,196.81 mi (8,363.45 km) |
| Glenvar Heights to Ospitaletto | 4,989.68 mi (8,030.11 km) |
| Glenvar Heights to Ostuni | 5,464.67 mi (8,794.54 km) |
| Glenvar Heights to Ottaviano | 5,312.70 mi (8,549.96 km) |
| Glenvar Heights to Ovada | 4,943.86 mi (7,956.37 km) |
| Glenvar Heights to Ozieri | 5,052.16 mi (8,130.66 km) |
| Glenvar Heights to Paceco | 5,293.67 mi (8,519.34 km) |
