| Kalymnos to Oria | 558.86 mi (899.40 km) |
| Kalymnos to Oristano | 1,013.56 mi (1,631.16 km) |
| Kalymnos to Orta Nova | 673.60 mi (1,084.05 km) |
| Kalymnos to Orte | 861.38 mi (1,386.26 km) |
| Kalymnos to Ortona | 763.80 mi (1,229.22 km) |
| Kalymnos to Orvieto | 880.96 mi (1,417.76 km) |
| Kalymnos to Orzinuovi | 1,056.60 mi (1,700.43 km) |
| Kalymnos to Osimo | 840.08 mi (1,351.98 km) |
| Kalymnos to Ospitaletto | 1,055.59 mi (1,698.81 km) |
| Kalymnos to Ostuni | 567.67 mi (913.57 km) |
| Kalymnos to Ottaviano | 722.48 mi (1,162.72 km) |
| Kalymnos to Ovada | 1,091.39 mi (1,756.42 km) |
| Kalymnos to Ozieri | 997.81 mi (1,605.81 km) |
| Kalymnos to Paceco | 793.57 mi (1,277.13 km) |
| Kalymnos to Pachino | 656.93 mi (1,057.22 km) |
