| Illzach to Obernburg am Main | 163.92 mi (263.80 km) |
| Illzach to Obernkirchen | 319.61 mi (514.36 km) |
| Illzach to Oberschleissheim | 197.61 mi (318.02 km) |
| Illzach to Oberstdorf | 138.96 mi (223.64 km) |
| Illzach to Obertraubling | 235.75 mi (379.40 km) |
| Illzach to Obertshausen | 171.63 mi (276.22 km) |
| Illzach to Oberursel | 176.31 mi (283.74 km) |
| Illzach to Ochsenfurt | 178.90 mi (287.91 km) |
| Illzach to Ochsenhausen | 122.02 mi (196.38 km) |
| Illzach to Ochtrup | 305.71 mi (491.99 km) |
| Illzach to Odenthal | 224.87 mi (361.89 km) |
| Illzach to Oelde | 282.17 mi (454.11 km) |
| Illzach to Oelsnitz | 283.89 mi (456.88 km) |
| Illzach to Oer-Erkenschwick | 266.74 mi (429.27 km) |
| Illzach to Oerlinghausen | 295.01 mi (474.77 km) |
