| Cheltenham to Oberkirch | 504.84 mi (812.47 km) |
| Cheltenham to Obernburg am Main | 508.43 mi (818.23 km) |
| Cheltenham to Obernkirchen | 475.08 mi (764.57 km) |
| Cheltenham to Oberschleissheim | 653.76 mi (1,052.13 km) |
| Cheltenham to Oberstdorf | 632.24 mi (1,017.49 km) |
| Cheltenham to Obertraubling | 657.16 mi (1,057.60 km) |
| Cheltenham to Obertshausen | 490.22 mi (788.94 km) |
| Cheltenham to Oberursel | 476.44 mi (766.75 km) |
| Cheltenham to Ochsenfurt | 551.71 mi (887.89 km) |
| Cheltenham to Ochsenhausen | 594.71 mi (957.09 km) |
| Cheltenham to Ochtrup | 393.61 mi (633.45 km) |
| Cheltenham to Odenthal | 399.51 mi (642.96 km) |
| Cheltenham to Oelde | 435.56 mi (700.96 km) |
| Cheltenham to Oelsnitz | 624.19 mi (1,004.54 km) |
| Cheltenham to Oer-Erkenschwick | 398.50 mi (641.32 km) |
