| Glenview to Orbetello | 4,733.94 mi (7,618.54 km) |
| Glenview to Oria | 5,074.82 mi (8,167.14 km) |
| Glenview to Oristano | 4,733.49 mi (7,617.81 km) |
| Glenview to Orta Nova | 4,961.49 mi (7,984.75 km) |
| Glenview to Orte | 4,779.99 mi (7,692.65 km) |
| Glenview to Ortona | 4,864.50 mi (7,828.66 km) |
| Glenview to Orvieto | 4,757.91 mi (7,657.12 km) |
| Glenview to Orzinuovi | 4,559.52 mi (7,337.84 km) |
| Glenview to Osimo | 4,779.03 mi (7,691.11 km) |
| Glenview to Ospitaletto | 4,558.62 mi (7,336.38 km) |
| Glenview to Ostuni | 5,062.14 mi (8,146.73 km) |
| Glenview to Ottaviano | 4,934.01 mi (7,940.53 km) |
| Glenview to Ovada | 4,539.83 mi (7,306.15 km) |
| Glenview to Ozieri | 4,722.10 mi (7,599.49 km) |
| Glenview to Paceco | 4,982.49 mi (8,018.54 km) |
