| Trikala to Oberkirch | 917.85 mi (1,477.14 km) |
| Trikala to Obernburg am Main | 940.83 mi (1,514.12 km) |
| Trikala to Obernkirchen | 1,065.18 mi (1,714.23 km) |
| Trikala to Oberschleissheim | 785.50 mi (1,264.13 km) |
| Trikala to Oberstdorf | 790.03 mi (1,271.43 km) |
| Trikala to Obertraubling | 804.17 mi (1,294.19 km) |
| Trikala to Obertshausen | 961.57 mi (1,547.49 km) |
| Trikala to Oberursel | 976.29 mi (1,571.19 km) |
| Trikala to Ochsenfurt | 902.42 mi (1,452.30 km) |
| Trikala to Ochsenhausen | 831.24 mi (1,337.75 km) |
| Trikala to Ochtrup | 1,116.45 mi (1,796.75 km) |
| Trikala to Odenthal | 1,062.21 mi (1,709.46 km) |
| Trikala to Oelde | 1,069.70 mi (1,721.51 km) |
| Trikala to Oelsnitz | 883.70 mi (1,422.18 km) |
| Trikala to Oer-Erkenschwick | 1,087.03 mi (1,749.40 km) |
