| Horsforth to Oberkirch | 557.45 mi (897.12 km) |
| Horsforth to Obernburg am Main | 536.05 mi (862.68 km) |
| Horsforth to Obernkirchen | 459.41 mi (739.34 km) |
| Horsforth to Oberschleissheim | 689.91 mi (1,110.30 km) |
| Horsforth to Oberstdorf | 684.23 mi (1,101.16 km) |
| Horsforth to Obertraubling | 682.17 mi (1,097.85 km) |
| Horsforth to Obertshausen | 515.87 mi (830.21 km) |
| Horsforth to Oberursel | 501.17 mi (806.56 km) |
| Horsforth to Ochsenfurt | 577.46 mi (929.33 km) |
| Horsforth to Ochsenhausen | 641.44 mi (1,032.30 km) |
| Horsforth to Ochtrup | 383.74 mi (617.57 km) |
| Horsforth to Odenthal | 416.35 mi (670.05 km) |
| Horsforth to Oelde | 431.15 mi (693.86 km) |
| Horsforth to Oelsnitz | 630.34 mi (1,014.44 km) |
| Horsforth to Oer-Erkenschwick | 401.41 mi (646.01 km) |
