| Ickenham to Oberkirch | 432.03 mi (695.28 km) |
| Ickenham to Obernburg am Main | 435.78 mi (701.32 km) |
| Ickenham to Obernkirchen | 410.35 mi (660.39 km) |
| Ickenham to Oberschleissheim | 580.60 mi (934.39 km) |
| Ickenham to Oberstdorf | 559.57 mi (900.54 km) |
| Ickenham to Obertraubling | 584.42 mi (940.53 km) |
| Ickenham to Obertshausen | 417.79 mi (672.37 km) |
| Ickenham to Oberursel | 404.14 mi (650.40 km) |
| Ickenham to Ochsenfurt | 479.10 mi (771.03 km) |
| Ickenham to Ochsenhausen | 521.69 mi (839.57 km) |
| Ickenham to Ochtrup | 328.69 mi (528.98 km) |
| Ickenham to Odenthal | 328.70 mi (528.99 km) |
| Ickenham to Oelde | 368.52 mi (593.07 km) |
| Ickenham to Oelsnitz | 553.60 mi (890.94 km) |
| Ickenham to Oer-Erkenschwick | 330.33 mi (531.61 km) |
