| Celtik to Orbetello | 1,100.01 mi (1,770.30 km) |
| Celtik to Oria | 757.97 mi (1,219.83 km) |
| Celtik to Oristano | 1,235.47 mi (1,988.30 km) |
| Celtik to Orta Nova | 862.34 mi (1,387.80 km) |
| Celtik to Orte | 1,040.67 mi (1,674.79 km) |
| Celtik to Ortona | 937.81 mi (1,509.26 km) |
| Celtik to Orvieto | 1,056.76 mi (1,700.70 km) |
| Celtik to Orzinuovi | 1,197.42 mi (1,927.06 km) |
| Celtik to Osimo | 997.18 mi (1,604.80 km) |
| Celtik to Ospitaletto | 1,193.47 mi (1,920.71 km) |
| Celtik to Ostuni | 761.63 mi (1,225.72 km) |
| Celtik to Ottaviano | 924.28 mi (1,487.49 km) |
| Celtik to Ovada | 1,248.07 mi (2,008.57 km) |
| Celtik to Ozieri | 1,210.94 mi (1,948.82 km) |
| Celtik to Paceco | 1,040.88 mi (1,675.14 km) |
