| Cypress Lake to Orbetello | 5,153.91 mi (8,294.42 km) |
| Cypress Lake to Oria | 5,511.93 mi (8,870.59 km) |
| Cypress Lake to Oristano | 5,091.82 mi (8,194.49 km) |
| Cypress Lake to Orta Nova | 5,396.62 mi (8,685.02 km) |
| Cypress Lake to Orte | 5,208.67 mi (8,382.54 km) |
| Cypress Lake to Ortona | 5,305.98 mi (8,539.15 km) |
| Cypress Lake to Orvieto | 5,188.85 mi (8,350.65 km) |
| Cypress Lake to Orzinuovi | 5,020.30 mi (8,079.40 km) |
| Cypress Lake to Osimo | 5,232.11 mi (8,420.27 km) |
| Cypress Lake to Ospitaletto | 5,022.90 mi (8,083.57 km) |
| Cypress Lake to Ostuni | 5,502.44 mi (8,855.32 km) |
| Cypress Lake to Ottaviano | 5,352.13 mi (8,613.41 km) |
| Cypress Lake to Ovada | 4,979.46 mi (8,013.67 km) |
| Cypress Lake to Ozieri | 5,095.04 mi (8,199.67 km) |
| Cypress Lake to Paceco | 5,339.19 mi (8,592.59 km) |
