| Caen to Oria | 1,062.33 mi (1,709.66 km) |
| Caen to Oristano | 776.85 mi (1,250.22 km) |
| Caen to Orta Nova | 948.68 mi (1,526.75 km) |
| Caen to Orte | 768.27 mi (1,236.40 km) |
| Caen to Ortona | 851.80 mi (1,370.84 km) |
| Caen to Orvieto | 745.96 mi (1,200.51 km) |
| Caen to Orzinuovi | 548.31 mi (882.43 km) |
| Caen to Osimo | 767.51 mi (1,235.18 km) |
| Caen to Ospitaletto | 548.49 mi (882.70 km) |
| Caen to Ostuni | 1,049.95 mi (1,689.73 km) |
| Caen to Ottaviano | 923.03 mi (1,485.48 km) |
| Caen to Ovada | 528.14 mi (849.96 km) |
| Caen to Ozieri | 749.29 mi (1,205.87 km) |
| Caen to Paceco | 1,005.41 mi (1,618.05 km) |
| Caen to Pachino | 1,158.98 mi (1,865.19 km) |
