| Catania to Oberkirch | 839.62 mi (1,351.25 km) |
| Catania to Obernburg am Main | 902.23 mi (1,452.00 km) |
| Catania to Obernkirchen | 1,060.42 mi (1,706.58 km) |
| Catania to Oberschleissheim | 763.66 mi (1,228.99 km) |
| Catania to Oberstdorf | 726.92 mi (1,169.87 km) |
| Catania to Obertraubling | 805.60 mi (1,296.48 km) |
| Catania to Obertshausen | 921.85 mi (1,483.57 km) |
| Catania to Oberursel | 934.89 mi (1,504.56 km) |
| Catania to Ochsenfurt | 875.82 mi (1,409.50 km) |
| Catania to Ochsenhausen | 775.15 mi (1,247.49 km) |
| Catania to Ochtrup | 1,085.69 mi (1,747.24 km) |
| Catania to Odenthal | 1,013.44 mi (1,630.97 km) |
| Catania to Oelde | 1,046.24 mi (1,683.75 km) |
| Catania to Oelsnitz | 904.04 mi (1,454.91 km) |
| Catania to Oer-Erkenschwick | 1,049.09 mi (1,688.35 km) |
