| Palomares del Rio to Orbetello | 979.14 mi (1,575.78 km) |
| Palomares del Rio to Oria | 1,288.15 mi (2,073.08 km) |
| Palomares del Rio to Oristano | 809.47 mi (1,302.71 km) |
| Palomares del Rio to Orta Nova | 1,192.28 mi (1,918.79 km) |
| Palomares del Rio to Orte | 1,037.40 mi (1,669.53 km) |
| Palomares del Rio to Ortona | 1,136.10 mi (1,828.38 km) |
| Palomares del Rio to Orvieto | 1,028.29 mi (1,654.87 km) |
| Palomares del Rio to Orzinuovi | 996.63 mi (1,603.92 km) |
| Palomares del Rio to Osimo | 1,109.20 mi (1,785.09 km) |
| Palomares del Rio to Ospitaletto | 1,007.72 mi (1,621.76 km) |
| Palomares del Rio to Ostuni | 1,286.24 mi (2,070.01 km) |
| Palomares del Rio to Ottaviano | 1,124.87 mi (1,810.30 km) |
| Palomares del Rio to Ovada | 916.33 mi (1,474.68 km) |
| Palomares del Rio to Ozieri | 838.58 mi (1,349.57 km) |
| Palomares del Rio to Paceco | 1,016.87 mi (1,636.49 km) |
