| Kerava to Oria | 1,411.53 mi (2,271.64 km) |
| Kerava to Oristano | 1,583.22 mi (2,547.95 km) |
| Kerava to Orta Nova | 1,376.49 mi (2,215.25 km) |
| Kerava to Orte | 1,349.63 mi (2,172.02 km) |
| Kerava to Ortona | 1,325.83 mi (2,133.72 km) |
| Kerava to Orvieto | 1,337.43 mi (2,152.39 km) |
| Kerava to Orzinuovi | 1,207.44 mi (1,943.18 km) |
| Kerava to Osimo | 1,264.88 mi (2,035.63 km) |
| Kerava to Ospitaletto | 1,194.83 mi (1,922.90 km) |
| Kerava to Ostuni | 1,396.18 mi (2,246.93 km) |
| Kerava to Ottaviano | 1,424.59 mi (2,292.65 km) |
| Kerava to Ovada | 1,282.12 mi (2,063.36 km) |
| Kerava to Ozieri | 1,531.62 mi (2,464.91 km) |
| Kerava to Paceco | 1,642.72 mi (2,643.70 km) |
| Kerava to Pachino | 1,694.66 mi (2,727.30 km) |
