| Palazzolo Acreide to Oberkirch | 863.87 mi (1,390.26 km) |
| Palazzolo Acreide to Obernburg am Main | 928.28 mi (1,493.92 km) |
| Palazzolo Acreide to Obernkirchen | 1,087.45 mi (1,750.09 km) |
| Palazzolo Acreide to Oberschleissheim | 791.20 mi (1,273.31 km) |
| Palazzolo Acreide to Oberstdorf | 752.72 mi (1,211.39 km) |
| Palazzolo Acreide to Obertraubling | 833.88 mi (1,341.99 km) |
| Palazzolo Acreide to Obertshausen | 947.75 mi (1,525.25 km) |
| Palazzolo Acreide to Oberursel | 960.65 mi (1,546.01 km) |
| Palazzolo Acreide to Ochsenfurt | 902.57 mi (1,452.54 km) |
| Palazzolo Acreide to Ochsenhausen | 801.00 mi (1,289.08 km) |
| Palazzolo Acreide to Ochtrup | 1,111.41 mi (1,788.63 km) |
| Palazzolo Acreide to Odenthal | 1,038.49 mi (1,671.29 km) |
| Palazzolo Acreide to Oelde | 1,072.45 mi (1,725.94 km) |
| Palazzolo Acreide to Oelsnitz | 932.62 mi (1,500.91 km) |
| Palazzolo Acreide to Oer-Erkenschwick | 1,074.57 mi (1,729.36 km) |
