| Avellino to Oberkirch | 620.17 mi (998.07 km) |
| Avellino to Obernburg am Main | 674.24 mi (1,085.08 km) |
| Avellino to Obernkirchen | 828.49 mi (1,333.32 km) |
| Avellino to Oberschleissheim | 530.78 mi (854.21 km) |
| Avellino to Oberstdorf | 501.01 mi (806.29 km) |
| Avellino to Obertraubling | 570.64 mi (918.35 km) |
| Avellino to Obertshausen | 694.35 mi (1,117.45 km) |
| Avellino to Oberursel | 707.92 mi (1,139.29 km) |
| Avellino to Ochsenfurt | 645.27 mi (1,038.47 km) |
| Avellino to Ochsenhausen | 548.68 mi (883.01 km) |
| Avellino to Ochtrup | 858.34 mi (1,381.37 km) |
| Avellino to Odenthal | 789.12 mi (1,269.97 km) |
| Avellino to Oelde | 817.13 mi (1,315.05 km) |
| Avellino to Oelsnitz | 668.37 mi (1,075.64 km) |
| Avellino to Oer-Erkenschwick | 822.82 mi (1,324.20 km) |
