| Keila to Oria | 1,332.56 mi (2,144.55 km) |
| Keila to Oristano | 1,507.62 mi (2,426.28 km) |
| Keila to Orta Nova | 1,297.66 mi (2,088.37 km) |
| Keila to Orte | 1,272.31 mi (2,047.58 km) |
| Keila to Ortona | 1,247.48 mi (2,007.63 km) |
| Keila to Orvieto | 1,260.36 mi (2,028.35 km) |
| Keila to Orzinuovi | 1,133.58 mi (1,824.32 km) |
| Keila to Osimo | 1,187.20 mi (1,910.62 km) |
| Keila to Ospitaletto | 1,120.94 mi (1,803.98 km) |
| Keila to Ostuni | 1,317.20 mi (2,119.83 km) |
| Keila to Ottaviano | 1,346.02 mi (2,166.20 km) |
| Keila to Ovada | 1,209.06 mi (1,945.79 km) |
| Keila to Ozieri | 1,455.98 mi (2,343.17 km) |
| Keila to Paceco | 1,564.45 mi (2,517.74 km) |
| Keila to Pachino | 1,615.73 mi (2,600.26 km) |
