| Altamura to Oberkirch | 675.37 mi (1,086.91 km) |
| Altamura to Obernburg am Main | 719.04 mi (1,157.18 km) |
| Altamura to Obernkirchen | 865.27 mi (1,392.52 km) |
| Altamura to Oberschleissheim | 568.92 mi (915.59 km) |
| Altamura to Oberstdorf | 551.20 mi (887.07 km) |
| Altamura to Obertraubling | 602.27 mi (969.27 km) |
| Altamura to Obertshausen | 739.63 mi (1,190.32 km) |
| Altamura to Oberursel | 753.77 mi (1,213.07 km) |
| Altamura to Ochsenfurt | 686.41 mi (1,104.66 km) |
| Altamura to Ochsenhausen | 597.29 mi (961.24 km) |
| Altamura to Ochtrup | 902.34 mi (1,452.18 km) |
| Altamura to Odenthal | 837.44 mi (1,347.73 km) |
| Altamura to Oelde | 858.92 mi (1,382.30 km) |
| Altamura to Oelsnitz | 695.98 mi (1,120.07 km) |
| Altamura to Oer-Erkenschwick | 868.49 mi (1,397.70 km) |
