| Cassano al Ionio to Oerlinghausen | 917.49 mi (1,476.56 km) |
| Cassano al Ionio to Oestrich-Winkel | 813.71 mi (1,309.55 km) |
| Cassano al Ionio to Offenburg | 728.99 mi (1,173.19 km) |
| Cassano al Ionio to Oftersheim | 763.00 mi (1,227.93 km) |
| Cassano al Ionio to Ohrdruf | 809.34 mi (1,302.50 km) |
| Cassano al Ionio to Ohringen | 731.54 mi (1,177.30 km) |
| Cassano al Ionio to Olbernhau | 765.69 mi (1,232.26 km) |
| Cassano al Ionio to Olching | 632.07 mi (1,017.23 km) |
| Cassano al Ionio to Oldenburg | 998.91 mi (1,607.59 km) |
| Cassano al Ionio to Oldenburg in Holstein | 1,034.35 mi (1,664.62 km) |
| Cassano al Ionio to Olfen | 928.62 mi (1,494.48 km) |
| Cassano al Ionio to Olpe | 877.17 mi (1,411.66 km) |
| Cassano al Ionio to Olsberg | 883.25 mi (1,421.46 km) |
| Cassano al Ionio to Oranienburg | 907.99 mi (1,461.27 km) |
| Cassano al Ionio to Ortenberg | 810.96 mi (1,305.11 km) |
